Section 1742 (Engine Control System - 4.2L - Introduction)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Repair Instructions
- Powertrain Control Module (PCM) Replacement
- CKP System Variation Learn Procedure
- Engine Coolant Temperature (ECT) Sensor Replacement
- Intake Air Temperature (IAT) Sensor Replacement
- Manifold Absolute Pressure (MAP) Sensor Replacement
- Heated Oxygen Sensor Replacement - Position 1
- Heated Oxygen Sensor Replacement - Position 2
- Accelerator Pedal Position (APP) Sensor Replacement
- Throttle Body Assembly Replacement
- Fuel Pressure Relief Procedure
- Fuel Pressure Gage Installation and Removal
- Quick Connect Fitting(s) Service (Metal Collar)
- Quick Connect Fitting(s) Service (Plastic Collar)
- Fuel Tank Draining Procedure
- Fuel Tank Replacement (TrailBlazer EXT, Envoy XL, Envoy XUV)
- Fuel Tank Replacement (TrailBlazer, Envoy, Rainier)
- Fuel Tank Pressure Sensor Replacement
- Fuel Level Sensor Replacement
- Fuel Sender Assembly Replacement
- Fuel Hose/Pipes Replacement - Chassis
- Fuel Hose/Pipe Replacement - Tank (TrailBlazer EXT, Envoy XL, Envoy XUV)
- Fuel Hose/Pipe Replacement - Tank (TrailBlazer, Envoy, Rainier)
- Fuel Tank Filler Pipe Replacement (TrailBlazer EXT, Envoy XL, Envoy XUV)
- Fuel Tank Filler Pipe Replacement (TrailBlazer, Envoy, Rainier)
- Fuel System Cleaning
- Fuel Rail Assembly Replacement
- Fuel Injector Cleaning Procedure
- Fuel Injector Replacement
- Evaporative Emission (EVAP) Canister Purge Solenoid Valve Replacement
- Evaporative Emission (EVAP) Canister Vent Solenoid Valve Replacement
- Evaporative Emission (EVAP) Hoses/Pipes Replacement - Canister Vent
- Evaporative Emission (EVAP) Hoses/Pipes Replacement - Canister/Fuel Tank (TrailBlazer, Envoy, Rainier)
- Evaporative Emission (EVAP) Hoses/Pipes Replacement - Canister/Fuel Tank (TrailBlazer EXT, Envoy XL, Envoy XUV)
- Evaporative Emission (EVAP) Hoses/Pipes Replacement - Engine/Chassis
- Evaporative Emission (EVAP) Canister Replacement (TrailBlazer, Envoy, Rainier)
- Evaporative Emission (EVAP) Canister Replacement (Trailblazer EXT, Envoy XL, Envoy XUV)
- Evaporative Emission (EVAP) System Cleaning
- Ignition Coil(s) Replacement
- Spark Plug Inspection
- Spark Plug Replacement
- Crankshaft Position (CKP) Sensor Replacement
- Camshaft Position (CMP) Sensor Replacement
- Camshaft Position (CMP) Actuator Solenoid Valve Replacement
- Knock Sensor (KS) Replacement
- Secondary Air Injection (AIR) Pump Replacement
- Secondary Air Injection (AIR) Solenoid Valve Replacement
- Secondary Air Injection (AIR) Pipe Replacement
- Air Cleaner Element Replacement
- Air Cleaner Assembly Replacement
- Air Cleaner Outlet Resonator Replacement
- Air Cleaner Resonator Outlet Duct Replacement
- Description and Operation
- Powertrain Control Module (PCM) Description
- Throttle Actuator Control (TAC) System Description
- Camshaft Actuator System Description
- Fuel System Description
- Fuel System Overview
- Fuel Tank
- Fuel Fill Pipe
- Fuel Filler Cap
- Fuel Sender Assembly
- Fuel Level Sensor
- Fuel Pump
- Fuel Filter
- Fuel Pressure Regulator Assembly
- Fuel Feed Pipes
- Nylon Fuel Pipes
- Quick-Connect Fittings
- Fuel Rail Assembly
- Fuel Injectors
- Fuel Metering Modes of Operation
- Starting Mode
- Clear Flood Mode
- Run Mode
- Acceleration Mode
- Deceleration Mode
- Battery Voltage Correction Mode
- Fuel Cutoff Mode
- Fuel Trim
- Evaporative Emission (EVAP) Control System Description
- Electronic Ignition (EI) System Description
- Knock Sensor (KS) System Description
- Secondary Air Injection System Description
- Air Intake System Description
- Special Tools & Equipment