Repair and Diagnosis (Single Page)
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Quick Lookups- Accessories & Equipment
- Anti-Theft Systems
- Anti-Theft System - Forced Entry System
- Door Locks - Automatic
- Door Locks - Power
- Tailgate & Trunk Release
- Cruise Control Systems
- Gauges & Instrument Panels
- Description & Operation
- Adjustment
- Testing
- Notes
- Fuel Gauge
- Oil Pressure Indicator
- Coolant Temperature Indicator
- Stop Engine Temperature Indicator
- Alternator Indicator
- Standard Analog Speedometer (DEVILLE & FLEETWOOD)
- Digital Instrument Cluster (DEVILLE & FLEETWOOD)
- Digital Instrument Cluster (ELDORADO & SEVILLE)
- No Cluster Displays
- Fuel Display Shows "--" at All Times
- Fuel Display Shows "--" Part of the Time
- Fuel Display Shows Flashing "E" at All Times
- Speed Display Shows "0" at All Times
- Speed Reads High All the Time or Range Display Shows "--" All the Time
- Display Does Not Dim
- Dim Displays, Digits Do Not Light, or Remain On at All Times
- Speedometer Inoperative (Quartz Cluster)
- Removal & Installation
- Headlights
- Horns
- Infotainment
- Mirrors - Power
- Seats - Power
- Steering Column Switches
- Vacuum Pumps/Lines/Tanks/Water Trap
- Window Motors & Regulators
- Wiper/Washer Systems
- Anti-Theft Systems
- Body & Frame
- Door Locks
- Anti-Theft System - Forced Entry System
- Door Locks - Automatic
- Door Locks - Power
- Tailgate & Trunk Release
- Mirrors - Power
- Seats - Power
- Vacuum Pumps/Vacuum Operated Accessories
- Power Windows - Side
- Door Locks
- Brakes
- Anti-Lock Brakes
- Anti-Lock Brake System
- Description
- Safety Precautions
- Operation
- Anti-Lock Brake System Component Locations
- Bleeding
- Testing
- Notes
- Pre-Diagnosis Inspection
- Light Sequence Determination
- Light Sequence Test Procedure
- Note On INTERMITTENTS
- Test A Brake System Pin Out Check
- Chart A-1: Ignition Enable CKT
- Charts A-2 To A-4: Main Relay CKT
- Charts A-5 & A-6: EBCM Loop CKT
- Charts A-7 To A-10: Wheel Sensor CKT
- Charts A-11 To A-18: Valve Block & Main Valve CKT
- Charts A-19 To A-21: Anti-Lock Light & Stoplight CKT
- Chart B To B-5: Pump/Motor & Brake Light CKT
- Test C: Wheel Sensor Output
- Flow Charts C1 To C-4: Wheel Sensor Output
- Test D: Solenoid Valve OPERATAION
- Test E "Anti-Lock" Light Inoperative
- Test F: Intermittent "Anti-Lock" Light While Driving
- Chart G: Low Or Spongy Pedal
- Wheel Sensor Air Gap
- Anti-Lock Brake System Testing Circuit
- Removal & Installation
- Wiring Diagrams
- Anti-Lock Brake System
- Mechanical - Hydraulic
- Traction Control
- Anti-Lock Brake System
- Description
- Safety Precautions
- Operation
- Anti-Lock Brake System Component Locations
- Bleeding
- Testing
- Notes
- Pre-Diagnosis Inspection
- Light Sequence Determination
- Light Sequence Test Procedure
- Note On INTERMITTENTS
- Test A Brake System Pin Out Check
- Chart A-1: Ignition Enable CKT
- Charts A-2 To A-4: Main Relay CKT
- Charts A-5 & A-6: EBCM Loop CKT
- Charts A-7 To A-10: Wheel Sensor CKT
- Charts A-11 To A-18: Valve Block & Main Valve CKT
- Charts A-19 To A-21: Anti-Lock Light & Stoplight CKT
- Chart B To B-5: Pump/Motor & Brake Light CKT
- Test C: Wheel Sensor Output
- Flow Charts C1 To C-4: Wheel Sensor Output
- Test D: Solenoid Valve OPERATAION
- Test E "Anti-Lock" Light Inoperative
- Test F: Intermittent "Anti-Lock" Light While Driving
- Chart G: Low Or Spongy Pedal
- Wheel Sensor Air Gap
- Anti-Lock Brake System Testing Circuit
- Removal & Installation
- Wiring Diagrams
- Anti-Lock Brake System
- Anti-Lock Brakes
- Drivelines & Axles
- Electrical
- Charging Systems
- Component Locations
- Fuses & Circuit Breakers
- Gauges
- Instrument Panel
- Description & Operation
- Adjustment
- Testing
- Notes
- Fuel Gauge
- Oil Pressure Indicator
- Coolant Temperature Indicator
- Stop Engine Temperature Indicator
- Alternator Indicator
- Standard Analog Speedometer (DEVILLE & FLEETWOOD)
- Digital Instrument Cluster (DEVILLE & FLEETWOOD)
- Digital Instrument Cluster (ELDORADO & SEVILLE)
- No Cluster Displays
- Fuel Display Shows "--" at All Times
- Fuel Display Shows "--" Part of the Time
- Fuel Display Shows Flashing "E" at All Times
- Speed Display Shows "0" at All Times
- Speed Reads High All the Time or Range Display Shows "--" All the Time
- Display Does Not Dim
- Dim Displays, Digits Do Not Light, or Remain On at All Times
- Speedometer Inoperative (Quartz Cluster)
- Removal & Installation
- Instrument Panel
- Horns
- Starter
- Wiring Diagrams
- Engine Mechanical
- Accessory Drive Belts
- Drive Belt Routing
- Description
- Inspection
- Belt Routing
- Drive Belt Routing
- Serpentine Belt Routing
- Notes
- Serpentine Belt Routing - (2.0L & 2.5L)
- Serpentine Belt Routing - (1986 2.8L)
- Serpentine Belt Routing - (1987 2.8L)
- Serpentine Belt Routing - (2.8L Camaro/Firebird)
- Serpentine Belt Routing - (3.8L VIN 3)
- Serpentine Belt Routing - (3.0L VIN L & 3.8L VIN 7)
- Serpentine Belt Routing - (4.1L)
- Serpentine Belt Routing - (5.7L)
- Serpentine Belt Routing
- Drive Belt Routing
- Drive Belt Routing
- Auxiliary Emission Control Systems
- Emission Control System Visual Inspection Procedures - General Information
- * Please Read This First *
- Emission Control Labels
- Emission Control Visual Inspection
- Notes
- Positive Crankcase Ventilation (PCV)
- Thermostatic Air Cleaner (TAC)
- Fuel Evaporative System (EVAP)
- Catalytic Converters
- Fill Pipe RESTRICTOR (Fr)
- Exhaust Gas RECIRCULATION (EGR) System
- Spark Controls (SPK)
- Air Injection System (AIS)
- Oxygen Sensor (O2)
- Computerized Engine Controls (CEC)
- Early Fuel Evaporation (EFE)
- Emission Maintenance Reminder Light (EMR) (If Equipped)
- Malfunction Indicator Light (Mil)
- Emission Control System Visual Inspection Procedures - General Information
- Engine Cooling Fan
- Cooling System (Mechanical)
- Cooling System Specifications
- Drive Belt Routing
- Description
- Inspection
- Belt Routing
- Drive Belt Routing
- Serpentine Belt Routing
- Notes
- Serpentine Belt Routing - (2.0L & 2.5L)
- Serpentine Belt Routing - (1986 2.8L)
- Serpentine Belt Routing - (1987 2.8L)
- Serpentine Belt Routing - (2.8L Camaro/Firebird)
- Serpentine Belt Routing - (3.8L VIN 3)
- Serpentine Belt Routing - (3.0L VIN L & 3.8L VIN 7)
- Serpentine Belt Routing - (4.1L)
- Serpentine Belt Routing - (5.7L)
- Serpentine Belt Routing
- Drive Belt Routing
- Mechanical
- 4.1L V8 - VIN [8]
- Engine Identification
- Valve Clearance Adjustment
- Trouble Shooting
- Removal & Installation
- Engine
- Intake Manifold
- Exhaust Manifold
- Cylinder Heads
- Valve Arrangement
- Valve Guide Servicing
- Valve Stem Oil Seals
- Valve Springs
- Rocker Arm Assembly
- Hydraulic Valve Lifter Assembly
- Hydraulic Valve Lifter Leak-Down Testing
- Oil Pan
- Piston & Rod Assembly
- Cylinder Liners
- Fitting Pistons
- Piston Pins
- Main Bearings
- Connecting Rod Bearings
- Thrust Bearing Alignment
- Rear Main Bearing Oil Seal
- Engine Front Cover
- Front Cover Oil Seal
- Timing Chain
- Camshaft
- Camshaft Bearings
- Water Pump
- Lubrication
- Torque Specifications
- Engine Specifications
- Engine Oil Pan Removal
- Engine Removal
- 4.1L V8 - VIN [8]
- Starter
- Accessory Drive Belts
- Engine Performance
- Adjustment
- Tune-Up - V8
- Identification
- Testing
- Adjustments
- Valve Clearance
- Valve Arrangement
- Distributor
- Ignition Timing
- Hot (Slow) Idle Rpm - CARBURETED
- Hot (Slow) Idle Rpm - Fuel Injected Engines
- Throttle Position Sensor (TPS) Adjustment - CARBURETED
- Throttle Position Sensor (TPS) Adjustment - Fuel Injected
- Idle Mixture Adjustment
- Cold (Fast) Idle Rpm
- Automatic Choke
- Alternator Regulator
- Specifications
- Tune-Up - V8
- Application
- Emissions
- EGR Function Testing - General Motors Cars
- Emission Applications
- Emission Control Abbreviations
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
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- GEORGIA
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- MASSACHUSETTS
- MISSOURI
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- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Ignition System - HEI-Est
- PFI Specifications
- System
- Air Cleaner - Thermostatic
- Air Injection System
- Catalytic Converter
- DFI BCM Tests W/Codes (4.1L)
- Diagnosis & Testing Information
- Notes
- Switch Tests
- Diagnostic Tools
- Basic Diagnostic Procedures
- Retrieving Stored Trouble Codes
- Entering Diagnostic Mode (DEVILLE & FLEETWOOD)
- Status Light Displays
- Exiting Diagnostic Mode
- Clearing Trouble Codes
- Intermittent Failure Test Procedures
- Switch Test Procedure
- BCM Data Display
- BCM Program Override
- Cooling Fans Override
- Performance Flow Charts
- Trouble Shooting
- Diagnosis & Testing
- BCM Trouble Code Component/Circuit Identification
- Hard Code F10 - Outside Air Temperature Sensor CKT
- Hard Code F11 - A/C High Side Temperature Sensor CKT
- Hard Code F12 - A/C Low Side Temperature Sensor CKT
- Hard Code F13 - In-Car Temperature Sensor CKT
- Intermittent Codes F30 &/Or F31 - Display To BCM Data
- Hard Code F32 - BCM-ECM Data
- Hard Code F40 - Air Mix Door Problem
- Hard Or Intermittent Code F41 - Cooling Fan Problems
- Hard Or Intermittent Codes F46, F47 &/Or F48 Refrigerant System Problems
- Hard Or Intermittent Code F49 - High Temperature Sensor Clutch Disengage
- Hard Or Intermittent Code F51 BCM Prom Error Indicator
- Wiring Diagrams
- Diagnosis & Testing Information
- DFI Components Removal & Installation (4.1L)
- Description
- Precautions
- Removal & Installation
- Notes
- Electronic Control Module (ECM) - 1985 Models
- ECM/Mem-Cal - 1986-91 Models With Mem-Cal
- ECM Programmable Read Only Memory (Prom)
- Body Control Module (BCM)
- BCM Programmable Read Only Memory (Prom)
- CALPAK
- Fuel Data Panel/Center
- Throttle Position Sensor (TPS)
- Idle Speed Control Actuator (ISC)
- Manifold Absolute Pressure Sensor (Map)
- Barometric Pressure Sensor (BARO)
- Coolant Temperature Sensor (Cts)
- Oxygen Sensor
- Manifold Air Temperature (Mat) Sensor
- DFI ECM Tests W/Codes (4.1L)
- Description & Operation
- Diagnosis & Testing
- How-To Enter/Exit Diagnostics & Retrieve Codes
- Entering Diagnostic Mode
- Status Light Displays
- Exiting Diagnostic Mode
- Clearing Trouble Codes
- Intermittent Failure Test Procedures
- Switch Test Procedure
- Engine Data Display Procedure
- Output Cycling Test Procedures
- Fixed Spark Mode Procedure
- ECM Data Parameter & Trouble Code I.D. Menu Tables
- ECM Trouble Code Component/Circuit Identification
- Performance Flow Charts
- DFI System Check
- Chart A1 - "Service Now/Soon" Light On/No Codes Present
- Chart A2 - Inoperative "Service Now/Soon" Lights
- Chart A3 - No Start Or Stall After Start
- Chart A4 - Fuel System Diagnosis
- Chart A5 - Injector System Diagnosis/Circuit Test
- Injector Circuit Test
- Chart A6 - Open Loop Diagnosis
- Chart A7 - Lean Exhaust Signal
- Chart A8 - Rich Exhaust Signal
- Chart A9 - Oxygen Sensor Diagnosis
- Self-Diagnostic System Check
- BCM-To-ECM Chart A1 - Faulty "Service A/C" Light
- Chart B1 - Faulty "Service Now/Soon" Lights
- Chart B2 - Both "Service Now/Soon" Inoperative
- Charts C1 Through C6 - Display Panel Diagnosis
- Multiple Trouble Codes (Stored Hard)
- Hard Code E12 - No Distributor (Tach) Signal
- Hard/Intermittent Code E13 - Oxygen Sensor Not Ready
- Hard Code E14 - Shorted Coolant Sensor CKT
- Hard Code E15 - Open Coolant Sensor CKT
- Hard Code E16 - Generator Voltage Out Of Range
- Hard Code E18 - Open Crank Signal Circuit
- Hard Code E19 - Shorted Fuel Pump Circuit
- Hard Or Intermittent Code E20 - Open Fuel Pump CKT
- Hard/Intermittent Code E20 (Cont.) - Fuel Fuse Blown
- Hard Code E021 - Shorted Throttle Position Sensor CKT
- Hard Code E22 - Open Throttle Position Sensor Circuit
- Hard Code E23 - Est Circuit Problem
- Hard Code E24 - Speed Sensor Circuit Problem
- Hard Code E26 - Shorted Throttle Switch Circuit
- Hard Code E27 - Open Throttle Switch Circuit
- Hard Code E28 - Open 3RD Or 4TH Gear Circuit
- Hard Or Intermittent Code E30 - Idle Speed Control Circuit Problem
- Hard Code E31 - Shorted Map Sensor Circuit
- Hard Code E32 - Open Map Sensor Circuit
- Hard Code E34 - Map Signal Too High
- Hard Code E37 - Shorted Mat Sensor Circuit
- Hard Code E38 - Open Mat Sensor Circuit
- Hard/Intermittent Code E39 - VCC Engagement Problem
- Hard Code E40 - Open Power Steering Pressure CKT
- Hard/Intermittent Code E44 - Lean Exhaust Signal
- Hard/Intermittent Code E45 - Rich Exhaust Signal
- Code E47 - BCM To ECM Data
- Code E48 - EGR System Fault
- Code E51 - Prom Error Indicator
- Code E52 - ECM Memory Reset
- Code E53 - Distributor Signal Interrupt
- Hard Code E55 - TPS Out Of Adjustment
- ISC Plunger Retract Procedure
- ISC Plunger Extension Procedure
- Hard Code E59 - VCC Temperature Sensor CKT
- Code E60 - Cruise Control CKT (Trans. Not In Drive)
- Code E63 - Cruise CNTRL CKT (Car & Set SPD Tolerance Exceeded)
- Code E64 - Acceleration Too High Cruise Engaged
- Code E65 - Coolant Temp Too High/Cruise Engaged
- Code E66 - Engine Rpm Too High/Cruise Engaged
- Code E67 - "Set/Coast" Or "Resume/ACCEL" CKTS Shorted
- Code E.7.1 - Cruise Control/VCC Brake Circuit
- Code E.7.2 - Throttle Switch Circuit
- Code E.7.4 - Park/Neutral (NSBU) Switch Circuit
- Code E.7.5 - Cruise On/Off Circuit
- Code E.7.6 - Cruise "Set/Coast" Circuit
- Code E.7.7 - "Resume/ACCEL" Circuit
- Code E.7.8 - Power Steering Pressure CKT
- No Cruise Control (With DFI)
- Performance Flow Charts 1-7
- Removal & Installation
- Wiring Diagrams
- DFI Tests W/O Codes
- DFI Theory/Operation (4.1L)
- Description & Operation
- Notes
- DFI System Components
- Fuel Delivery Operation
- Air Induction Operation
- Data Sensors Operation
- Electronic Control Module (ECM) Operation
- Body Control Module (BCM) Operation
- Electronic Spark Timing (Est)
- Idle Speed Control (ISC)
- Emission Controls
- Closed Loop Fuel Control
- Cruise Control
- Viscous Converter Clutch (VCC) - Except 1987
- Catalytic Converter
- Diagnostic System Operation
- Adjustments
- Description & Operation
- Diagnostic Connector - Fwd
- Early Fuel Evaporation System
- EGR Function Testing
- EGR System - Gasoline
- Fuel Evaporation System
- Fuel Injection System - Digital
- Component Testing
- Description
- Operation
- Adjustments
- Trouble Shooting & Diagnosis
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Fuel Pump
- Model Identification
- PCV System - Gasoline
- Restricted Exhaust System Check (Chart B1)
- Testing & Diagnosis
- Air Cleaner - Thermostatic
- Air Injection System
- Catalytic Converter
- DFI BCM Tests W/Codes (4.1L)
- Diagnosis & Testing Information
- Notes
- Switch Tests
- Diagnostic Tools
- Basic Diagnostic Procedures
- Retrieving Stored Trouble Codes
- Entering Diagnostic Mode (DEVILLE & FLEETWOOD)
- Status Light Displays
- Exiting Diagnostic Mode
- Clearing Trouble Codes
- Intermittent Failure Test Procedures
- Switch Test Procedure
- BCM Data Display
- BCM Program Override
- Cooling Fans Override
- Performance Flow Charts
- Trouble Shooting
- Diagnosis & Testing
- BCM Trouble Code Component/Circuit Identification
- Hard Code F10 - Outside Air Temperature Sensor CKT
- Hard Code F11 - A/C High Side Temperature Sensor CKT
- Hard Code F12 - A/C Low Side Temperature Sensor CKT
- Hard Code F13 - In-Car Temperature Sensor CKT
- Intermittent Codes F30 &/Or F31 - Display To BCM Data
- Hard Code F32 - BCM-ECM Data
- Hard Code F40 - Air Mix Door Problem
- Hard Or Intermittent Code F41 - Cooling Fan Problems
- Hard Or Intermittent Codes F46, F47 &/Or F48 Refrigerant System Problems
- Hard Or Intermittent Code F49 - High Temperature Sensor Clutch Disengage
- Hard Or Intermittent Code F51 BCM Prom Error Indicator
- Wiring Diagrams
- Diagnosis & Testing Information
- DFI Components Removal & Installation (4.1L)
- Description
- Precautions
- Removal & Installation
- Notes
- Electronic Control Module (ECM) - 1985 Models
- ECM/Mem-Cal - 1986-91 Models With Mem-Cal
- ECM Programmable Read Only Memory (Prom)
- Body Control Module (BCM)
- BCM Programmable Read Only Memory (Prom)
- CALPAK
- Fuel Data Panel/Center
- Throttle Position Sensor (TPS)
- Idle Speed Control Actuator (ISC)
- Manifold Absolute Pressure Sensor (Map)
- Barometric Pressure Sensor (BARO)
- Coolant Temperature Sensor (Cts)
- Oxygen Sensor
- Manifold Air Temperature (Mat) Sensor
- DFI ECM Tests W/Codes (4.1L)
- Description & Operation
- Diagnosis & Testing
- How-To Enter/Exit Diagnostics & Retrieve Codes
- Entering Diagnostic Mode
- Status Light Displays
- Exiting Diagnostic Mode
- Clearing Trouble Codes
- Intermittent Failure Test Procedures
- Switch Test Procedure
- Engine Data Display Procedure
- Output Cycling Test Procedures
- Fixed Spark Mode Procedure
- ECM Data Parameter & Trouble Code I.D. Menu Tables
- ECM Trouble Code Component/Circuit Identification
- Performance Flow Charts
- DFI System Check
- Chart A1 - "Service Now/Soon" Light On/No Codes Present
- Chart A2 - Inoperative "Service Now/Soon" Lights
- Chart A3 - No Start Or Stall After Start
- Chart A4 - Fuel System Diagnosis
- Chart A5 - Injector System Diagnosis/Circuit Test
- Injector Circuit Test
- Chart A6 - Open Loop Diagnosis
- Chart A7 - Lean Exhaust Signal
- Chart A8 - Rich Exhaust Signal
- Chart A9 - Oxygen Sensor Diagnosis
- Self-Diagnostic System Check
- BCM-To-ECM Chart A1 - Faulty "Service A/C" Light
- Chart B1 - Faulty "Service Now/Soon" Lights
- Chart B2 - Both "Service Now/Soon" Inoperative
- Charts C1 Through C6 - Display Panel Diagnosis
- Multiple Trouble Codes (Stored Hard)
- Hard Code E12 - No Distributor (Tach) Signal
- Hard/Intermittent Code E13 - Oxygen Sensor Not Ready
- Hard Code E14 - Shorted Coolant Sensor CKT
- Hard Code E15 - Open Coolant Sensor CKT
- Hard Code E16 - Generator Voltage Out Of Range
- Hard Code E18 - Open Crank Signal Circuit
- Hard Code E19 - Shorted Fuel Pump Circuit
- Hard Or Intermittent Code E20 - Open Fuel Pump CKT
- Hard/Intermittent Code E20 (Cont.) - Fuel Fuse Blown
- Hard Code E021 - Shorted Throttle Position Sensor CKT
- Hard Code E22 - Open Throttle Position Sensor Circuit
- Hard Code E23 - Est Circuit Problem
- Hard Code E24 - Speed Sensor Circuit Problem
- Hard Code E26 - Shorted Throttle Switch Circuit
- Hard Code E27 - Open Throttle Switch Circuit
- Hard Code E28 - Open 3RD Or 4TH Gear Circuit
- Hard Or Intermittent Code E30 - Idle Speed Control Circuit Problem
- Hard Code E31 - Shorted Map Sensor Circuit
- Hard Code E32 - Open Map Sensor Circuit
- Hard Code E34 - Map Signal Too High
- Hard Code E37 - Shorted Mat Sensor Circuit
- Hard Code E38 - Open Mat Sensor Circuit
- Hard/Intermittent Code E39 - VCC Engagement Problem
- Hard Code E40 - Open Power Steering Pressure CKT
- Hard/Intermittent Code E44 - Lean Exhaust Signal
- Hard/Intermittent Code E45 - Rich Exhaust Signal
- Code E47 - BCM To ECM Data
- Code E48 - EGR System Fault
- Code E51 - Prom Error Indicator
- Code E52 - ECM Memory Reset
- Code E53 - Distributor Signal Interrupt
- Hard Code E55 - TPS Out Of Adjustment
- ISC Plunger Retract Procedure
- ISC Plunger Extension Procedure
- Hard Code E59 - VCC Temperature Sensor CKT
- Code E60 - Cruise Control CKT (Trans. Not In Drive)
- Code E63 - Cruise CNTRL CKT (Car & Set SPD Tolerance Exceeded)
- Code E64 - Acceleration Too High Cruise Engaged
- Code E65 - Coolant Temp Too High/Cruise Engaged
- Code E66 - Engine Rpm Too High/Cruise Engaged
- Code E67 - "Set/Coast" Or "Resume/ACCEL" CKTS Shorted
- Code E.7.1 - Cruise Control/VCC Brake Circuit
- Code E.7.2 - Throttle Switch Circuit
- Code E.7.4 - Park/Neutral (NSBU) Switch Circuit
- Code E.7.5 - Cruise On/Off Circuit
- Code E.7.6 - Cruise "Set/Coast" Circuit
- Code E.7.7 - "Resume/ACCEL" Circuit
- Code E.7.8 - Power Steering Pressure CKT
- No Cruise Control (With DFI)
- Performance Flow Charts 1-7
- Removal & Installation
- Wiring Diagrams
- DFI Tests W/O Codes
- DFI Theory/Operation (4.1L)
- Description & Operation
- Notes
- DFI System Components
- Fuel Delivery Operation
- Air Induction Operation
- Data Sensors Operation
- Electronic Control Module (ECM) Operation
- Body Control Module (BCM) Operation
- Electronic Spark Timing (Est)
- Idle Speed Control (ISC)
- Emission Controls
- Closed Loop Fuel Control
- Cruise Control
- Viscous Converter Clutch (VCC) - Except 1987
- Catalytic Converter
- Diagnostic System Operation
- Adjustments
- Description & Operation
- Diagnostic Connector - Fwd
- Early Fuel Evaporation System
- EGR Function Testing
- EGR System - Gasoline
- Fuel Evaporation System
- Fuel Injection System - Digital
- Component Testing
- Description
- Operation
- Adjustments
- Trouble Shooting & Diagnosis
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Fuel Pump
- Model Identification
- PCV System - Gasoline
- Restricted Exhaust System Check (Chart B1)
- Theory and Operation
- CCC Theory/Operation
- Vehicle Identification
- Description
- Operation
- System Overview
- ECM Operating Conditions Sensed
- ECM Operating Systems Controlled
- Fuel Control (CARBURETED Models)
- Fuel Control Operation (Fuel Injected Models)
- Data Sensors
- Notes
- Air Conditioner "On" Switch
- Barometric Pressure Sensor (BARO)
- Coolant Temperature Sensor (CTS)
- Crank Signal
- E-Cell Timer
- High Gear Switch
- Mass Air Flow Sensor (MAF)
- Manifold Absolute Pressure Sensor (MAP)
- Manifold Air Temperature Sensor (MAT)
- Oxygen Sensor (O2)
- Park/Neutral Switch (P/N)
- Throttle Position Sensor (TPS)
- Vacuum Sensor
- Vehicle Speed Sensor (VSS)
- Electronic Control Module (ECM)
- Ignition Timing Operation
- Idle Air Control (IAC) Valve
- Idle Speed Control (ISC) (CARBURETED Models)
- Idle Speed Module (2.0L TBI Engine - 1986-87)
- Emission Control
- Torque Converter Clutch (TCC)
- Diagnostic System
- CCC Theory/Operation
- Tune-Up
- Vacuum Diagrams
- Adjustment
- General Information
- Abbreviations
- Basic Trouble Shooting
- Basic Trouble Shooting - General Information
- Commonly Used Abbreviations - General Information
- Emission Control Abbreviations
- Engine Performance - Trouble Shooting - General Information
- Brakes
- Anti-Lock Brake Safety Precautions - General Information
- Map - Brake Systems
- Brake Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accelerometers
- Accumulators
- Anchor Pins
- Anti-Lock Brake Control Assembly(Module)
- Anti-Lock Brake Controller
- Anti-Lock Brake Systems
- Axle Seal
- Backing Plates
- Bleeder Screw
- Brake Abs Active Light (Blue)
- Brake Fluid
- Brake Friction Material
- Brake On - Off Switch
- Brake Pads
- Brake Pedals
- Brake Shoe Hardware
- Brake Shoes
- Brake Stoplight Switches
- Brake Warning Light (Amber)
- Brake Warning Light (Red)
- Bulb Sockets
- Bulbs And LEDS
- Caliper Hardware
- Caliper Mounting Pin
- Caliper Piston
- Caliper Shim
- Caliper Slider Pin (Bolt) Dust Boot
- Caliper Slider Pin (Bolt)
- Calipers
- Combination Valve
- Controllers
- Digital Ratio Axle Controllers And Buffers (Drab And Dram)
- Disable Switches
- Drums
- Electrical Brake Pumps
- Electrical Park Motor
- Electrical Pumps And Motors
- Electro-Magnetic Interference
- Electronic Brake Control Modulator
- Electronic Brake Distribution
- Electronic Brake Traction Control Module
- Electronic Controllers
- Electronic Traction Control
- External Brake Cable
- Flow Control Valve
- Fluid Level Sensor Switches
- Fluid
- Four Wheel Drive Switches
- Friction Material
- G Sensors
- Gaskets
- Gravitational Switches
- Grease Seal
- Height Sensing Proportioning Valve
- High Pressure Accumulator
- Hoses
- Hub
- Hydraulic Control Unit
- Hydraulic Modulators
- Hydro-Boosters
- Hydro-Electric Boosters (POWERMASTER)
- Ignition Disable Switches
- Lamp Driver Relay
- Lateral Acceleration Switches
- LEDS
- Lenses
- Low Pressure Accumulator
- Lug Nut
- Master Cylinder Cover Gasket
- Master Cylinders
- Modulators
- Motor Pack
- Motors
- Pads
- Parking Brake Cable
- Parking Brake Mechanism
- Parking Brake Shoes
- Parking Brake Switches
- Parking Brake Systems
- Pedal Travel Switches
- Pedals
- Power Distribution Center
- POWERMASTER
- Pressure Differential Switches
- Pressure Switches
- Pressure Transducers
- Proportioning Valve
- Pumps
- Relays
- RELUCTOR (Speed) Ring
- Rotors
- Self-Adjusting Systems
- Shoe Hardware
- Shoes
- Sockets
- Speed Sensor (RELUCTOR) Ring
- Speed Sensors (Electronic Wheel And Vehicle)
- Star Wheel
- Steel Brake Lines
- Stoplight Switches
- Stroke Sensor
- Switches
- Tires
- Tone Ring
- Toothed Rings (Tone Wheel)
- Traction Control System (TCS)
- Transfer Tubes
- Vacuum Boosters
- Vacuum Hoses
- Valves
- Wear Indicator
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheel Cylinders
- Wiring Harnesses
- Yaw Rate Sensor
- Brake System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Brake Systems
- Map - Routine Inspection Reference Guide
- Routine Inspection Reference Guide
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Maintenance Overview
- Antifreeze/Coolant
- Visual Inspection
- Radiator Cap Test
- Engine Fan
- Cooling System Power Flush And Refill
- Belts (Except Timing Belts)
- Belt TENSIONER
- Automatic Transmission Fluid
- Automatic Transmission Fluid Exchange & Filter Replacement
- Engine Oil
- Air Filters
- Cabin Air Filter
- Brake Fluid
- Battery
- Battery Cables
- Power Steering
- Power Steering Fluid
- Wiper Blades
- Routine Inspection CHECKSHEET
- Routine Inspection - UICS
- Brake Systems
- Drivetrain And Transmission
- Notes
- Automatic Transmission Fluid
- Clutch Master Cylinders
- Cooler Lines
- Coolers
- Differential Fluid
- Drain Plugs And Gaskets
- Filters And Screens
- Fluids And Lubricants
- Hoses, Lines, And Tubes
- Hydraulic Fluid
- Lubricants
- Manual Transmission Fluid
- Mounts (Engine, Transaxle And Transmission)
- Transfer Case Fluid
- Vacuum Hoses
- Electrical Systems
- Engine Performance And Maintenance
- Notes
- Accessory Belts
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Pump Belts
- Batteries
- Battery Connectors
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Chemical Engine DECARBONIZATION
- Combustion Chamber Cleaning
- Coolant Recovery Tanks
- Coolant
- Distributor Caps
- Distributor Rotors
- Engine Cooling Systems
- Engine DECARBONIZATION
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel System Cleaning Service
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Ignition Wires (Secondary)
- Intake Cleaning
- O2 Sensors
- PCV Breather Elements
- PCV Valves
- Radiator Caps And Pressurized Expansion Tank Caps
- Spark Plugs
- Thermostats And Housings
- Throttle Body Cleaning
- Timing Belts
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Exhaust Systems
- Heating, Ventilation And Air Conditioning Systems
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Wheel & Tire Supplement
- Reason Code Explanation
- Automotive Terminology & Definitions
- Routine Inspection Reference Guide
- Check Lists
- Computer Relearn Procedures
- Driveline/Axles
- Drive Axle Noise Diagnosis - General Information
- Gear Tooth Contact Patterns - General Information
- Map - Drive Train & Transmission
- Drive Train & Transmission Systems
- Drivetrain And Transmission
- Notes
- Actuators (Electrical)
- Actuators (Vacuum)
- Automatic Transmission / Transaxle Assemblies/CVTS
- Automatic Transmission Fluid
- Axles
- Bearings And Races
- Bell Cranks
- Bell Housings
- Bushings (External)
- Cables (Speedometer)
- Cables (TV, Detent And Shift)
- Carrier Bearings
- Clutch Cables And Cable Housings
- Clutch Discs (Manual Transmissions)
- Clutch Forks
- Clutch Linkages (Mechanical)
- Clutch Master Cylinders
- Clutch Pedals
- Clutch Pivots
- Clutch Pressure Plates
- Clutch Release Bearings
- Clutch Slave Cylinders (Concentric)
- Clutch Slave Cylinders (Conventional Or External)
- Companion Flanges
- Connectors
- Cooler Bypass Valves
- Cooler Lines
- Coolers
- CV Joints
- Differential And Final Drive Assemblies
- Differential Fluid
- Dip Stick Tubes
- Dip Sticks (Fluid Level Indicators)
- Dowel Pins, Guides And Pilot Holes
- Drain Plugs And Gaskets
- Drive Shaft Flanges
- Drive Shafts And Half Shafts
- Dust Boots
- Engine Mounts
- Exciter Rings
- Filler Tubes
- Filters And Screens
- Flanges
- Flex Plates
- Fluid Level Indicators
- Fluids And Lubricants
- Flywheels
- Force Motors
- Gaskets
- Guides
- Half Shafts
- Hoses, Lines, And Tubes
- Housings (Bell, Case, Tail(Extension) And Auxiliary)
- Hydraulic Fluid
- Intermediate Shaft Support Bearings
- Key Interlock Systems
- Limited Slips
- Lines
- Linkages (External)
- Locking Hub Assemblies
- Locking Hub Control Knobs
- Lubricants
- Manual Transmission Fluid
- Manual Transmission/Transaxle Assemblies
- Metal Clad Seals
- METALASTIC Joints
- Modulator Pins
- Modulators
- Mounts (Engine, Transaxle And Transmission)
- Odometer Drives (Mechanical)
- Odometer Heads (Mechanical)
- Oil Pans
- Pans
- Pilot Holes
- Pressure Plates
- Pressure Switches
- Races
- Rubber Joints (METALASTIC)
- Screens
- Seals (Metal Clad)
- Seals
- Selector Interlock Systems
- Sensors
- Servos
- Shift Interlock Systems (Selector And Key Interlock Systems)
- Side Covers
- Slip Yokes
- Solenoids
- Speed Sensors (Electronic Wheel And Vehicle)
- Speedometer- Driven Gear Housing
- Speedometer/Odometer Drives (Mechanical)
- Speedometer/Odometer Heads (Mechanical)
- Speedometers/Odometers (Electronic)
- Switches
- Tone Wheels
- Toothed Rings (Tone Wheel)
- Torque Converters
- Transaxle Mounts
- Transducers (Transmission)
- Transfer Case Assemblies
- Transfer Case Fluid
- Transmission Coolers
- Transmission Mounts
- Transmission Pans
- Transmission Range Indicators (PRNDL)
- Tubes
- Universal Joints (CARDAN Or Cross Type)
- Vacuum Controls
- Vacuum Hoses
- Vacuum Motors
- Vacuum-Operated Switches
- Vehicle Speed Sensors
- Vents
- Vibration Dampers
- Wheel Attachment Hardware
- Wheel Speed Sensors
- Wiring Harnesses And Connectors
- Yokes And Slip Yokes
- Reason Code Explanation
- Automotive Terminology & Definitions
- Trouble Shooting - Clutches - General Information
- Electrical
- Map - Electrical Systems
- Electrical Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Actuator Motors (Electric)
- Actuator Motors (Vacuum)
- Air Bags
- Alternators And Generators
- Amplifiers
- Antennas
- Batteries
- Battery Cables, Wires And Connectors
- Battery Cables
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belts
- Bulb Sockets
- Bulbs, Sealed Beams And LEDS
- Cd Players
- Cigarette Lighter Assemblies
- Circuit Breakers
- Clutch Switches
- Connectors
- Control Modules
- Cruise Control Brake Switches
- Cruise Control Cables
- Cruise Control Clutch Switches
- Cruise Control Linkages And Cables
- Cruise Control Reservoirs
- Cruise Control Tubes
- Cruise Control Vacuum Dump Release Valves
- Cruise Control Vacuum Hoses, Tubes And
- Cruise Control Vehicle Speed Sensors
- Defoggers
- Defrosters
- Delays
- Dimmers
- Electric Heaters
- Equalizers
- Fuse Blocks
- Fuse Boxes And Blocks
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gauges
- Generators
- Ground Cables And Straps
- Ground Straps
- Headlight Adjusters
- Heating Elements (Defrosters, Defoggers, Electric Heaters And Seats)
- Horns And Sirens
- Ignition Switches
- Indicator Lights
- Keyless Entry Keypads And Transmitters
- Keyless Entry Transmitters
- LEDS
- Lenses
- Microphones
- Mirrors (ELECTROCHROMATIC And Heated)
- Motors
- Neutral Safety Switches
- Odometers, Speedometers And Tachometers (Cable Driven)
- Odometers
- Power Distribution Center
- Pulleys
- Receivers, Amplifiers, Equalizers And Sub-Woofer Volume Controls
- Relay Boxes
- Relays
- Sealed Beams
- Seat Heaters
- Security Alarm Sensors
- Sirens
- Solenoids
- Speakers And Microphones
- Speedometer And Tachometer Linkages And Cables
- Speedometer Cables
- Speedometers
- Starters
- Sub-Woofer Volume Control
- Switches
- Tachometer Cables
- Tachometers
- Tape Players And Cd Players
- TENSIONERS
- Timers
- Transceivers
- Transducers
- Vacuum Accumulators (Reservoirs)
- Voltage Regulators
- Washer Fluid Level Senders
- Washer Pumps
- Wiper Arms And Blades
- Wiper Blades
- Wiper Hoses And Nozzles
- Wiper Linkages
- Wiper Nozzles
- Wiper Pump Reservoirs
- Wiring Harnesses And Connectors
- Battery, Starting & Charging System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Electrical Systems
- Using lemon2025'S System Wiring Diagrams
- Map - Electrical Systems
- Engine
- Engine Overhaul Procedures - General Information
- * Please Read This First *
- Description
- Engine Identification
- Inspection Procedures
- Cleaning Procedures
- Component Cleaning
- Cylinder Head Replacement
- Cylinder Head Overhaul
- Pistons, Connecting Rods & Bearings
- Crankshaft & Main Bearings
- Camshaft
- Timing Chains & Belts
- Timing Gears
- Oil Pump
- Break-In Procedure
- General Cooling System Service - General Information
- Engine Overhaul Procedures - General Information
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Engine Performance And Maintenance (Including Exhaust Systems)
- Engine Performance & Maintenance CHECKSHEET
- Engine Performance And Maintenance
- Notes
- Accelerator Pedal Position Sensor
- Accessory Belts
- Accessory Pulleys
- Air Conditioning Cycling Switches
- Air Conditioning Pressure Sensors
- Air Ducts And Tubes
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Fuel Ratio Sensors
- Air Injection Control Solenoids
- Air Plenums
- Air Pump Belts
- Air Pumps (Electric Driven)
- Air Tubes
- Aspirator, Check And DECEL Valves
- Baffles
- Ballast Primary Supply Resistor Wires
- Ballast Resistors And Primary Supply Resistors
- Barometric Pressure Sensors
- Batteries
- Battery Cables, Wires And Connectors
- Battery Connectors
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Belt-Driven Air Pumps
- Boost Control Mechanism
- Camshaft Position Sensors
- Carburetors And Chokes
- Casting Core Plugs And Expansion Plugs
- Charge Air Coolers ""INTERCOOLERS"" (CAC)
- Check Valves
- Chemical Engine DECARBONIZATION
- Chokes
- Clutch Pedal Position Switches
- Cold Start Injectors
- Combustion Chamber Cleaning
- Connectors
- Coolant Recovery Tanks
- Coolant
- Cooling Fan Motor Modules
- Cooling Fan Motor Relays And Modules
- Cooling Fan Motor Resistors
- Cooling Fan Motor Sensors And Switches
- Cooling Fan Motor Switches
- Cooling Fan Motors
- Crankshaft Position Sensors
- Cylinder Deactivation Solenoid
- Cylinder Head Assemblies
- DECEL Valves
- Deflectors
- Dip Stick Tubes
- Dip Sticks And Tubes
- Distributor Advances And Retarders (Mechanical And Vacuum)
- Distributor Boots And Shields
- Distributor Caps
- Distributor Retarders (Mechanical And Vacuum)
- Distributor Rotors
- Distributor Shields
- Distributors
- Early Fuel Evaporation Valves (Heat Riser Assemblies)
- EGR Coolers
- EGR Exhaust Manifold Passages
- EGR Intake And Exhaust Manifold Passages
- EGR Plates And Coolers
- Electronic Spark Control Modules
- Electronic Transmission Control Devices
- Electronic Transmission Feedback Devices
- Engine Coolant Temperature Sensors
- Engine Cooling Systems
- Engine Covers (Oil Pan, Valve Cover, Timing Cover)
- Engine DECARBONIZATION
- Engine Oil Canisters
- Engine Oil Coolers (External)
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil Gaskets
- Engine Oil Pressure Gauges (Mechanical)
- Engine Oil
- Evaporative Emissions (EVAP) Canister Filters
- Evaporative Emissions (EVAP) Canister Purge Devices
- Evaporative Emissions (EVAP) Canisters
- Evaporative Emissions (EVAP) Feedback Devices
- Exhaust Gas RECIRCULATION Devices
- Exhaust Gas RECIRCULATION Feedback Devices
- Expansion Plugs
- Fan Control Sensor
- Fuel Accumulators And Dampers
- Fuel And Cold Start Injectors
- Fuel Caps
- Fuel Dampers
- Fuel Delivery Check Valves
- Fuel Distributors (BOSCH Cis)
- Fuel Filler Necks And RESTRICTORS
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel Level Senders
- Fuel Pressure Regulators
- Fuel Pumps (In-Tank, External, Electrical Or Mechanical)
- Fuel Rails
- Fuel RESTRICTORS
- Fuel System Cleaning Service
- Fuel Tanks
- Fuel
- Gaskets
- Grommets (Valve Cover)
- Harmonic Dampers
- Heater Control Valves
- Heater Cores
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tube Couplers, Connectors And Clamps
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Housings
- Idle Air Controls
- Idle Speed Control Actuators
- Ignition Boots
- Ignition Coil Towers
- Ignition Coils
- Ignition Control Modules (ICM)
- Ignition Switches
- Ignition Terminals
- Ignition Wires (Secondary)
- Inertia Fuel Shut-Off Switches
- Intake Air Temperature Sensors
- Intake Cleaning
- Intake Manifolds
- In-Tank Fuel Strainers
- INTERCOOLERS
- Knock Sensors
- Liquid Vapor Separators
- Long Block Assemblies
- Manifold Absolute Pressure (Map) Sensors
- Mass Air Flow (MAF) Sensors
- Metal Air Manifolds And Pipes
- Metal Air Pipes
- Mix Control Solenoids
- Motor Mounts
- O2 Sensors
- Oil Pans
- Oil Pressure Sending Units
- Oil Pump Pick-Up Screens
- Oil Pumps
- O-Rings, Gaskets, Seals And Spring Locks
- Park Neutral Position Switches
- PCV Breather Elements
- PCV Orifices
- PCV Valves
- Pick-Up Assemblies (Includes Magnetic, Hall Effect And Optical)
- Power Steering Pressure Sensors
- Powertrain Control Modules (Pcm) And Prom
- Powertrain Control Prom
- Pressurized Expansion Tank Caps
- Radiator / Cooling Fan Blades
- Radiator / Cooling Fan Clutches
- Radiator Caps And Pressurized Expansion Tank Caps
- Radiators
- Roll Over Valves
- Sealing Compounds
- Seals
- Secondary Air Injection System Management Devices
- Sensors
- Short Block Assemblies
- Shrouds, Baffles And Deflectors
- Spark Plugs
- Spring Locks
- Super Chargers
- Switches
- Thermal Vacuum Valves
- Thermostatic Air Door Assemblies
- Thermostats And Housings
- Throttle Bodies
- Throttle Body Cleaning
- Throttle Cables
- Throttle Linkages And Cables
- Throttle Position Sensors
- Throttle Position Switches
- Timing Belt Sprockets
- Timing Belts
- Timing Covers
- Torque Struts
- Transmission Range Switches
- Tube Clamps
- Tube Connectors
- Tube Couplers
- Tubes
- Turbo Chargers
- Vacuum Connections
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Vacuum Regulator Solenoids
- Vacuum Tubes
- Valve Covers
- Vehicle Speed Senors
- Volume Air Flow Sensors
- Waste Gate And Boost Control Mechanisms
- Waste Gate Control Solenoids
- Water Pumps (Electric)
- Water Pumps (Non-Electric)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
- Colorado
- CONNECTICUT
- DELAWARE
- District Of COLUMBIA
- GEORGIA
- IDAHO
- ILLINOIS
- INDIANA
- KENTUCKY
- MARYLAND
- MASSACHUSETTS
- MISSOURI
- NEVADA
- New Jersey
- New MEXICO
- New YORK
- North CAROLINA
- OHIO
- OREGON
- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Waveforms - Injector Pattern Tutorial - General Information
- * Please Read This First *
- Purpose Of This Article
- Is A Lab Scope Necessary?
- The Two Types Of Injector Drivers
- The Two Ways Injector Circuits Are Wired
- Interpreting Injector Waveforms
- Current Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Voltage Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Map - Exhaust Systems
- Exhaust Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Catalytic Converters
- Exhaust And Tail Pipes
- Exhaust Connections
- Hangers
- Heat Risers (Mechanical EFE Devices)
- Heat Shields
- Manifolds (Cast And Tube Type)
- Mechanical EFE Devices
- Muffler Valve
- Mufflers And Resonators
- Reason Code Explanation
- Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Map - Heating, Ventilation, & Air Conditioning
- Heating, Ventilation & Air Conditioning Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accumulators
- Actuators (Electrical)
- Actuators (Vacuum)
- Air Conditioning Fittings
- Air Conditioning Hoses
- Air Conditioning Metal Lines
- Air Control Doors
- Air Dams (External)
- Air Distribution System
- Belts
- Blend Doors
- Blower Fans (Blower Wheel Or Squirrel Cage)
- Blower Motors
- Blower Resistors
- Blower Switches
- Cabin Air Filters
- Circuit Breakers
- Compressor Clutch Assemblies
- Compressors
- Condenser Air Seals
- Condenser Fan Motors
- Condensers
- Connectors
- Control Cables
- Control Heads (Function Selectors)
- Control Linkages
- Control Modules
- Coolant
- Cooling Fan Blades
- Cooling Fan Clutches
- Cooling Fan Motors
- Evaporator Drain Tubes
- Evaporator Filters
- Evaporator Pressure Regulators (EPRS)
- Evaporators
- Expansion Valves
- Function Selectors
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gaskets
- Heater Cases
- Heater Control Valves
- Heater Cores
- Heater Hoses
- High Pressure Relief Valves (HPRV)
- Idlers
- In-Line Filters
- Metal Fittings
- Metal Lines
- Mix And Air Control Doors (Blend Doors)
- ORIFACE Tubes
- O-Rings
- Pilot-Operated Absolutes (POAS)
- Plenums
- Pressure Control Valves
- Pressure Sensors
- Pulleys
- Radiators
- Receiver-DRIERS
- Refrigerant Oil
- Refrigerant
- Relays
- Seals
- Service Ports
- Spring Lock Couplings
- Suction Throttling Valves (STVS)
- Switches (Electrical)
- TENSIONERS
- Thermistors And Pressure Sensors
- Thermostats And Housings
- Vacuum Hoses And Tubes
- Vacuum Reservoirs
- Vacuum Tubes
- Valves In Receiver (VIRS)
- Water Pumps (Electric Auxiliary)
- Wiring Harnesses And Connectors
- Heating, Ventilation & Air Conditioning System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Heating, Ventilation & Air Conditioning Systems
- Map - Heating, Ventilation, & Air Conditioning
- Hoist/Jack
- Identification
- Metric Conversions
- Maintenance Reminder Light (Reset Procedures)
- Engine Oil Replacement Reminder
- Notes
- Engine Oil Replacement Reminder Reset - Procedure 01
- Engine Oil Replacement Reminder Reset - Procedure 02
- Engine Oil Replacement Reminder Reset - Procedure 03
- Engine Oil Replacement Reminder Reset - Procedure 04
- Engine Oil Replacement Reminder Reset - Procedure 05
- Engine Oil Replacement Reminder Reset - Procedure 06
- Engine Oil Replacement Reminder Reset - Procedure 07
- Engine Oil Replacement Reminder Reset - Procedure 08
- Engine Oil Replacement Reminder Reset - Procedure 09
- Engine Oil Replacement Reminder Reset - Procedure 10
- Engine Oil Replacement Reminder Reset - Procedure 11
- Engine Oil Replacement Reminder Reset - Procedure 12
- Engine Oil Replacement Reminder Reset - Procedure 13
- Engine Oil Replacement Reminder Reset - Procedure 14
- Engine Oil Replacement Reminder Reset - Procedure 15
- Engine Oil Replacement Reminder Reset - Procedure 16
- Engine Oil Replacement Reminder Reset - Procedure 17
- Engine Oil Replacement Reminder Reset - Procedure 18
- Engine Oil Replacement Reminder Reset - Procedure 19
- Engine Oil Replacement Reminder Reset - Procedure 20
- Engine Oil Replacement Reminder Reset - Procedure 21
- Engine Oil Replacement Reminder Reset - Procedure 22
- Engine Oil Replacement Reminder Reset - Procedure 23
- Engine Oil Replacement Reminder Reset - Procedure 24
- Engine Oil Replacement Reminder Reset - Procedure 25
- Engine Oil Replacement Reminder Reset - Procedure 26
- Engine Oil Replacement Reminder Reset - Procedure 27
- Engine Oil Replacement Reminder Reset - Procedure 28
- Engine Oil Replacement Reminder Reset - Procedure 29
- Engine Oil Replacement Reminder Reset - Procedure 30
- Engine Oil Replacement Reminder Reset - Procedure 31
- Engine Oil Replacement Reminder Reset - Procedure 32
- Engine Oil Replacement Reminder Reset - Procedure 33
- Engine Oil Replacement Reminder Reset - Procedure 34
- Engine Oil Replacement Reminder Reset - Procedure 35
- Engine Oil Replacement Reminder Reset - Procedure 36
- Engine Oil Replacement Reminder Reset - Procedure 37
- Emissions Maintenance Reminder (Reminder Flag)
- Emissions Maintenance Reminder (Warning Light)
- Emissions Maintenance Reminder (Check Engine Light)
- Diesel Fuel Filter Replacement Reminder
- Maintenance Service Reminder
- Timing Belt Replacement Reminder
- Transmission Fluid Replacement Reminder
- Tire Pressure Monitor System Reminder
- Notes
- TPMS Reminder Reset - Procedure 01
- TPMS Reminder Reset - Procedure 02
- TPMS Reminder Reset - Procedure 03
- TPMS Reminder Reset - Procedure 04
- TPMS Reminder Reset - Procedure 05
- TPMS Reminder Reset - Procedure 06
- TPMS Reminder Reset - Procedure 07
- TPMS Reminder Reset - Procedure 08
- TPMS Reminder Reset - Procedure 09
- TPMS Reminder Reset - Procedure 10
- TPMS Reminder Reset - Procedure 11
- TPMS Reminder Reset - Procedure 12
- TPMS Reminder Reset - Procedure 13
- TPMS Reminder Reset - Procedure 14
- TPMS Reminder Reset - Procedure 15
- TPMS Reminder Reset - Procedure 16
- TPMS Reminder Reset - Procedure 17
- TPMS Reminder Reset - Procedure 18
- TPMS Reminder Reset - Procedure 19
- TPMS Reminder Reset - Procedure 20
- TPMS Reminder Reset - Procedure 21
- TPMS Reminder Reset - Procedure 22
- TPMS Reminder Reset - Procedure 23
- TPMS Reminder Reset - Procedure 24
- TPMS Reminder Reset - Procedure 25
- TPMS Reminder Reset - Procedure 26
- TPMS Reminder Reset - Procedure 27
- TPMS Reminder Reset - Procedure 28
- TPMS Reminder Reset - Procedure 29
- TPMS Reminder Reset - Procedure 30
- TPMS Reminder Reset - Procedure 31
- TPMS Reminder Reset - Procedure 32
- TPMS Reminder Reset - Procedure 33
- TPMS Reminder Reset - Procedure 34
- TPMS Reminder Reset - Procedure 35
- TPMS Reminder Reset - Procedure 36
- TPMS Reminder Reset - Procedure 37
- Engine Oil Replacement Reminder
- RPO Codes
- RPO Code Description (Codes 001-19F)
- RPO Code Description (Codes 19H-2EL)
- RPO Code Description (Codes 2F1-44I)
- RPO Code Description (Codes 44L-5J9)
- RPO Code Description (Codes 5K0-6FF)
- RPO Code Description (Codes 6FG-76A)
- RPO Code Description (Codes 76D-7XD)
- RPO Code Description (Codes 7XF-8M0)
- RPO Code Description (Codes 8M1-9C0)
- RPO Code Description (Codes 9C1-A0F)
- RPO Code Description (Codes A0G-Ar4)
- RPO Code Description (Codes Ar5-BCP)
- RPO Code Description (Codes BCQ-C12)
- RPO Code Description (Codes C13-Cur)
- RPO Code Description (Codes Cut-Dir)
- RPO Code Description (Codes Dr7-EHE)
- RPO Code Description (Codes EHF-F5P)
- RPO Code Description (Codes F5Q-G1V)
- RPO Code Description (Codes G1W-HFN)
- RPO Code Description (Codes HFO-JRG)
- RPO Code Description (Codes JRH-KLY)
- RPO Code Description (Codes KLZ-LQX)
- RPO Code Description (Codes LQY-MW9)
- RPO Code Description (Codes MWE-ODK)
- RPO Code Description (Codes ODL-Ora)
- RPO Code Description (Codes Orb-PDE)
- RPO Code Description (Codes PDF-QH6)
- RPO Code Description (Codes QH7-R8D)
- RPO Code Description (Codes R8E-T07)
- RPO Code Description (Codes T08-TJ0)
- RPO Code Description (Codes TJ1-U10)
- RPO Code Description (Codes U11-Us9)
- RPO Code Description (Codes USB-VG9)
- RPO Code Description (Codes VGA-W5Y)
- RPO Code Description (Codes W5Z-XE3)
- RPO Code Description (Codes XE4-Y9Z)
- RPO Code Description (Codes Ya2-ZD9)
- RPO Code Description (Codes ZDE-ZZZ)
- Steering
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Steering & Suspension Systems
- Wheel And Tire
- Steering & Suspension CHECKSHEET
- Wheels & Tires CHECKSHEET
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Notes
- Active Handling
- Active Suspension Control Modules
- Active Variable Ratio Steering
- Active Yaw Control
- Adaptive Cruise Control
- Advance TRAC
- Air Bags
- Air Ride Control Modules
- Air Ride Suspension Torsion Springs (Counter Balancing)
- Air Ride Suspension
- Air Ride Tubes
- Air Shocks And Air Struts
- Air Spring Valves
- Air Springs
- Air Suspension Control Valves
- Air Suspension DRIERS
- Axle Acceleration Sensor
- Ball Joints
- Body Acceleration Sensor
- Bushings
- Center Links
- Compressors
- Continuous Damping Control
- Control Arm Shafts
- Control Arms
- Control Modules
- Distance Regulation Control Module
- Distance Regulation Sensor
- Drag Links
- Dynamic Stability Control
- Dynamic Stability Traction Control
- Electronic Ride Control Shocks And Struts
- Electronic Stability Control
- Electronic Suspension System
- Flex Couplers
- Gaskets
- Height Sensors
- Hydraulic Hoses
- Hydraulic Power Steering Pumps
- Hydraulic Suspension Hoses
- Hydraulic Suspension Pumps
- Idler Arms
- Intermediate Shaft U-Joints
- King Pins
- Modules
- Pitman Arms
- Power Steering Belts
- Power Steering Coolers
- Power Steering Fluid
- Power Steering Hoses
- Power Steering Lines (Steel)
- Power Steering Pumps - Electric
- Power Steering Pumps
- Radar Sensor
- Radius Arms
- Relay Rods
- Relays
- Sensors
- Shock Absorbers, Strut Cartridges And Strut Assemblies
- Spindles
- Springs, Coil, Leaf And Torsion Bars
- STABILITRAC
- Stability Management System
- Steering Angle Sensor
- Steering Arms
- Steering Couplers
- Steering Dampers
- Steering Gears (Except Rack And Pinion)
- Steering Gears, Rack And Pinion
- Steering Knuckles
- Strike Out Bumpers
- Strut Bearing Plate Assemblies
- Strut Rods
- Suspension Pumps (Hydraulic)
- Sway Bar Links
- Sway Bar Mounting Bushings
- Sway Bars
- Switches
- Tie Rod Ends (Inner And Outer)
- Tire Pressure Monitoring System
- Tire Pressure Sensors
- Tires
- Torque Sensor
- Torsion Springs
- Track Bar Bushings
- Track Bars
- Trailing Arm Bushings
- Trailing Arms
- Valve Stems
- Vehicle Dynamics Control
- Vehicle Speed Sensor
- Vehicle Stability Assist
- Vehicle Stability/Skid Control
- Warning Lamps
- Wheel Alignment
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheels (Rims)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Wheel Alignment Theory & Operation - General Information
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- General Servicing
- A/C Compressor Servicing
- A/C System General Servicing
- A/C System Precautions
- Before Opening The System
- Discharging A/C System
- Disconnecting Lines & Fittings
- Component Replacement
- Using R-12 Refrigerant - Safety Precautions
- Using Individual R-12 Cans
- Multi-Can Dispensing Valves
- Can Tap Installation Flat Type Seal Cans
- Screw Type Seal Cans
- Connecting Lines & Fittings
- Placing System In Operation
- Compressor Removal Information - Isolation Method
- Compressor Removal Information - Discharge Method
- HVAC Control Systems
- A/C-Heater System - Automatic
- Description
- Operation
- Adjustment
- Trouble Shooting & Diagnosis
- Telltale Control "Service Air COND"
- Self Diagnosis System
- Retrieving Stored Trouble Codes
- Notes
- Entering Diagnostic Mode
- Status Light Display
- "Auto"
- "Econ"
- "Off"
- "Front Defog"
- "Rear Defog"
- "Outside Temp"
- "Auto Fan"
- "Hi Fan"
- "Lo Fan"
- "°F"
- "°C"
- Exiting Diagnostic Mode
- Clearing ECM Trouble Codes
- "BCM" Codes
- Code ".7.0"
- BCM Data Display
- "P.2.0"
- "P.2.1"
- "P.2.2"
- "P.2.4"
- "P.2.5"
- "P.2.6"
- "P.2.7"
- "P.2.8"
- "P.2.9"
- "P.3.0"
- "P.3.1"
- ECC Program Override
- Troubleshooting Charts
- Removal & Installation
- Vacuum Hose Diagram(S)
- Wiring Diagram
- A/C-Heater System - Automatic
- General Servicing
- Maintenance
- Procedures
- Maintenance Information - Fwd
- Model Identification
- Maintenance Service Information
- Service Point Locations
- Information Label Locations
- Service Labor Times
- Wheel & Tire Specifications
- Cautions & Warnings
- Warranty Information
- Notes
- Bumper-To-Bumper Plus Coverage Limited Warranty (BUICK & OLDSMOBILE)
- Bumper-To-Bumper Plus Coverage Limited Warranty (CADILLAC)
- Supplemental Coverage (CADILLAC)
- Corrosion Coverage (All Models)
- Supplemental Inflatable Restraint Coverage (All Models)
- Emissions "Defect" & "Performance" Warranties (Except CALIFORNIA)
- Emission "Performance" Warranty (CALIFORNIA)
- Emission "Defect" Warranty (CALIFORNIA)
- Fuses & Circuit Breakers
- Service Indicator & Warning Lights - Fwd
- Service Indicator & Warning Lights
- Service Engine Soon Or Service Vehicle Soon Warning Light
- Stop Engine Temp Warning Light
- Oil Pressure Warning Light
- Engine Oil Pressure Gauge
- Brake System Warning Light
- Anti-Lock Brake System Light (If Equipped)
- Coolant Temperature Warning Light
- Coolant Temperature Gauge
- Charging System Warning Light
- Battery Voltage Gauge
- Inflatable Restraint (Air Bag) Warning Light (If Equipped)
- Service Air COND Warning Light (If Equipped)
- Service Indicator & Warning Lights
- Maintenance Information - Fwd
- Procedures
- Steering
- Manual Steering
- Power Steering General Servicing
- Power Steering Pump
- Steering Gear - Power Rack & Pinion
- Power Steering
- Power Steering General Servicing
- Power Steering Pump
- Steering Gear - Power Rack & Pinion
- Steering Column
- Steering Linkage
- Manual Steering
- Suspension
- Electronic Suspension
- Front Suspension
- Rear Suspension
- Wheel Alignment
- Transmission
- Automatic Trans
- Diagnosis - 440-T4
- Description
- Trouble Shooting
- Testing & Diagnosis
- TCC Diagnostic Charts
- Notes
- Chart C-8A-1 TCC Electrical Diagnosis - CARBURETED
- Code 24, Vehicle Speed Sensor (VSS) - CARBURETED
- Chart 24-B, Park/Neutral Switch - CARBURETED
- Chart C-1 ECM Replacement Check - CARBURETED
- Chart C-8A, TCC Electrical Diagnosis - 2.8L PFI
- Chart C-8, TCC Electrical Diagnosis - 3.8L PFI Turbo
- Chart C-8B, TCC Electrical Diagnosis - 3.8L PFI
- Code 24, Vehicle Speed Sensor (VSS) - PFI
- Chart C-1A, Park/Neutral Switch - PFI
- Overhaul - 440-T4/4T60 & 4T60-E
- Application
- Identification
- Description
- Lubrication
- Adjustments
- On-Vehicle Service
- Trouble Shooting
- Notes
- Quick Check
- Transaxle
- Notes
- Oil Out Of Vent Or Foaming
- High Or Low Line Pressure
- Delayed Engagement
- No Drive In "D"
- Slips In "D"
- No 1-2 Shift (1st Gear)
- Harsh Or Soft 1-2 Shift
- Early Or Late 1-2 Shift (4T60)
- Early Or Late 1-2 Shift (4T60-E)
- No 2-3 Shift (1st & 2nd Gears 4T60)
- No 2-3 Shift (1st & 2nd Gears 4T60-E)
- 1-4 Shift (Misses 2nd & 3rd Gears 4T60-E)
- 2-3 Shift Only (4T60-E Only)
- 1-2-4 Shift (No 2-3 Shift 4T60-E)
- Harsh Or Soft 2-3 Shift (4T60)
- Harsh Or Soft 2-3 Shift (4T60-E)
- Early Or Late 2-3 Shift (4T60)
- Early Or Late 2-3 Shift (4T60-E)
- Shudder 1-2 Shift (4T60)
- 3rd Gear Only (4T60-E)
- 3-4 Shift (Misses 1st & 2nd Gears 4T60-E)
- No 3-4 Shift
- Harsh Or Soft 3-4 Shift
- Early Or Late 3-4 Shift (4T60)
- Early Or Late 3-4 Shift (4T60-E)
- No Reverse
- Locked In Reverse
- Slips In Reverse
- Vehicle Moves In Park
- Harsh Neutral-To-Drive Engagement
- Vehicle Starts In 2nd Gear (4T60)
- Vehicle Starts in 2nd Gear (4T60-E)
- Harsh Reverse
- No Engine Breaking In Manual 2nd Or Low (4T60-E)
- Harsh 4-3 Downshift (4T60)
- Harsh 4-3 Downshift (4T60-E)
- Harsh 3-2 Downshift (4T60)
- Harsh 3-2 Downshift (4T60-E)
- Harsh 2-1 Downshift
- No Converter Clutch Apply
- Converter Clutch Does Not Release
- Converter Stuck On in 3rd & 4th (4T60-E)
- Converter Applied With Maximum Pressure (4T60-E With PWM)
- Converter Clutch Apply Rough, Slips Or Shudders
- No TCC (4T60-E)
- Electronic Self-Diagnostics & Electronic Testing
- Testing
- Removal & Installation
- Transaxle Disassembly
- Component Disassembly & Reassembly
- Transaxle Case
- Final Drive Assembly
- Sun Gear Shaft
- 1-2 Band Assembly
- Reaction Carrier & Drum
- Input Carrier Assembly
- Reverse Reaction Drum & Reverse Band
- 3RD Roller Clutch, Input Sprag & Input Sun Gear
- Input Clutch Assembly
- 2ND Clutch Assembly
- Driven Sprocket Support
- Output Shaft
- Drive Link Assembly & Sprockets
- Valve Body
- Oil Pump Assembly
- 1-2 & Reverse Servos
- Transaxle Reassembly
- Torque Specifications
- Wiring Diagrams
- Removal & Installation - A/T
- Removal & Installation
- THM 125-C & 440-T4 Transaxles
- Removal (Calais, Cavalier, Cimarron, Corsica, Firenza, Grand Am, Somerset, Skyhawk, Skylark & Sunbird)
- Installation (Calais, Cavalier, Cimarron, Corsica, Firenza, Grand Am, Somerset, Skyhawk, Skylark & Sunbird)
- Removal (Bonneville, 88, DeVille, Eldorado, Electra, Fleetwood, LeSabre, 98, Riviera, Seville & Toronado)
- Installation (Bonneville, 88, DeVille, Eldorado, Electra, Fleetwood, LeSabre, 98, Riviera, Seville & Toronado)
- Removal (Celebrity, Century, Ciera & 6000)
- Installation (Celebrity, Century, Ciera & 6000)
- Removal (Fiero)
- Installation (Fiero)
- THM 125-C & 440-T4 Transaxles
- Torque Specifications
- Removal & Installation
- Servicing - A/T
- Transmission Oil Pan Gasket Id
- Diagnosis - 440-T4
- Hydraulic Diagrams - 440T4/4T60
- Automatic Trans
- External Pages
