Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
  • Electrical Component Locations
    • Diagnostic Connector (DLC) Locations
    • Electrical Component Locator
  • Technical Bulletins
    • Campaigns
    • Technical Service Bulletins
  • Wiring Diagrams
    • System Wiring Diagrams - P3500
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Cruise Control Systems
    • Cruise Control System - Trucks Diesel
  • Gauges & Instrument Panels
    • Instrument Panel - Analog - G Series
    • Instrument Panel - Analog - P Series
  • Headlights
    • Headlight Systems & Daytime Running Lights Systems Wiring Diagrams
  • Heated Glass/Defoggers
    • Rear Window Defoggers - Wiring Diagrams
  • Mirrors
    • Power Mirror System
  • Seats
    • Power Seat System
  • Steering Column And Steering Column Switches
  • Warning Systems
  • Wiper/Washer Systems
    • Wiper System And Washer System
  • Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
    • Data Link Connector Wiring Diagrams
    • Ground Distribution Wiring Diagrams
    • Power Distribution - Wiring Diagrams
• Body & Frame
  • Mirrors
    • Power Mirror System
  • Seats
    • Power Seat System
• Brakes
  • Anti-Lock Brakes
    • Anti-Lock Brake System
  • Mechanical - Hydraulic
    • Disc Brakes & Drum Brakes
  • Traction Control
    • Anti-Lock Brake System
• Drivelines & Axles
  • Differentials & Drive Axles
    • Differentials - EATON Locking
    • Drive Axle - DANA 10 1/2" & 11" Full Floating
  • Driveshaft & Universal Joints
    • Drive Shaft & Universal Joints
• Electrical
  • Body Electrical
    • Testing Wiring Systems For Intermittent & Poor Connections
  • Component Locations
    • Diagnostic Connector (DLC) Locations
    • Electrical Component Locator
  • Fuses & Circuit Breakers - P Series Vans
  • Gauges
    • Instrument Panel - Analog - G Series
    • Instrument Panel - Analog - P Series
  • Motors, Switches, Relays
    • Testing Wiring Systems For Intermittent & Poor Connections
  • Starter
    • Starting System
  • Wiring Diagrams
    • System Wiring Diagrams - P3500
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Accessory Drive Belts
    • Engine Cooling System Specifications & Drive Belt Routing
  • Auxiliary Emission Control Systems
    • Emission Control System Visual Inspection Procedures - General Information
  • Engine Cooling Fan System - Trucks
  • Cooling System (Mechanical)
    • Engine Cooling System Specifications & Drive Belt Routing
  • Engine Mechanical - 6.5L V8 Diesel - VIN [Y,S,F]
  • Starter
    • Starting System
• Engine Performance
  • Engine Adjustments
  • Application
    • Engine/VIN Breakdown
  • Emissions
    • EGR Function Testing - Diesel General Motors
    • EGR Function Testing - General Motors Trucks
    • Emission Applications - Diesel
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Controls - Sensor Range Charts
  • Engine Controls - Service & Adjustment Specifications
  • System
    • Engine Control System - Tests W/Codes - DTC P0100-P0134
    • Engine Control System - Tests W/Codes - DTC P0135-P0204
    • Engine Control System - Tests W/Codes - DTC P0205-P0351
    • Engine Control System - Tests W/Codes - DTC P0352-P0452
    • Engine Control System - Tests W/Codes - DTC P0453-P0656
    • Engine Control System - Tests W/Codes - DTC P0704-P1272
    • Engine Control System - Tests W/Codes - DTC P1273-P1536
    • Engine Control System - Tests W/Codes - DTC P1537-U1193
    • Engine Control System & Component Tests
    • Engine Controls - Basic Diagnostic Procedures
    • Engine Controls Tests W/Codes - Diesel
    • Engine Controls Tests W/O Codes
    • Testing Wiring Systems For Intermittent & Poor Connections
  • Testing & Diagnosis
    • Engine Control System - Tests W/Codes - DTC P0100-P0134
    • Engine Control System - Tests W/Codes - DTC P0135-P0204
    • Engine Control System - Tests W/Codes - DTC P0205-P0351
    • Engine Control System - Tests W/Codes - DTC P0352-P0452
    • Engine Control System - Tests W/Codes - DTC P0453-P0656
    • Engine Control System - Tests W/Codes - DTC P0704-P1272
    • Engine Control System - Tests W/Codes - DTC P1273-P1536
    • Engine Control System - Tests W/Codes - DTC P1537-U1193
    • Engine Control System & Component Tests
    • Engine Controls - Basic Diagnostic Procedures
    • Engine Controls Tests W/Codes - Diesel
    • Engine Controls Tests W/O Codes
    • Testing Wiring Systems For Intermittent & Poor Connections
  • Theory and Operation
    • Engine Controls - Theory & Operation
  • Engine Vacuum Diagrams
  • Engine Performance - Wiring Diagrams
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control 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
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • Computer Relearn Procedures
  • Driveline/Axles
    • Drive Axle Noise Diagnosis - General Information
    • Gear Tooth Contact Patterns - General Information
    • Map - Drive Train & Transmission
    • Trouble Shooting - Clutches - General Information
  • Electrical
    • Map - Electrical Systems
    • Testing Wiring Systems For Intermittent & Poor Connections
    • Using lemon2025'S System Wiring Diagrams
  • Engine
    • Engine Overhaul Procedures - General Information
    • General Cooling System Service - General Information
  • Engine Performance
    • Electrostatic Discharge Warning - General Information
    • Engine Performance Diagnostic Routine Outline - General Information
    • Engine Performance Safety Precautions
    • Map - Engine Performance & Maintenance
    • Parasitic Load Explanation & Test Procedures - General Information
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
    • Waveforms - Injector Pattern Tutorial - General Information
  • Map - Exhaust Systems
  • Heating, Ventilation & A/C (HVAC)
    • Map - Heating, Ventilation, & Air Conditioning
  • Identification
    • CANADIAN Model Cross-Reference
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Testing Wiring Systems For Intermittent & Poor Connections
  • Maintenance Reminder Light (Reset Procedures)
  • Restraints
    • Supplemental Inflatable Restraint System Component Inspection & Replacement Tables.
  • 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 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)
  • Specifications Index
    • Common Specs & Procedures
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • A/C Compressor
    • HVAC System - Compressor Clutch Controls
  • General Servicing
    • HVAC System - Compressor Applications & Body Designations
    • HVAC System - Compressor Refrigerant Oil Checking
    • HVAC System - Compressor Servicing
    • HVAC System - General Servicing
    • HVAC System - Refrigerant Oil & Refrigerant Specifications
  • HVAC Control Systems
    • HVAC System
• Maintenance
  • Procedures
    • Maintenance Information
• Suspension
  • FRONT SUSPENSION - 2WD Coil Spring - P-Series
  • Rear Suspension
  • Wheel Alignment Specifications & Adjustment Procedures
• Transmission
  • Automatic Trans
    • Automatic Transmission Diagnosis - 4L80-E (Diesel - 2-Digit Codes)
    • Automatic Transmission Removal & Installation
    • Automatic Transmission Servicing
    • Shift Interlock Systems
  • Manual Transmission Clutches
  • Manual Trans
    • Manual Transmission Overhaul - New Venture 4500 5-Speed
    • Manual Transmission Servicing
• External Pages