GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Pontiac
🢒
2004
🢒
Grand Prix
🢒
Engine
🢒 Engine Controls - 3.8L (L26 and L32)
Engine
All Component Locator
Engine Controls Component Views
All Description and Operation
Air Intake System Description
Boost Control System Description
Electronic Ignition (EI) System Description
Evaporative Emission Control System Description
Exhaust Gas Recirculation (EGR) System Description
Fuel System Description
Knock Sensor (KS) System Description
Powertrain Control Module Description
Throttle Actuator Control (TAC) System Description
All Special Tools and Equipment
Special Tools
All Visual Identification
Engine Controls Connector End Views
Powertrain Control Module Connector End Views
Cleaning, Inspection, and Adjustment
Fuel Injector Cleaning
Spark Plug Inspection
Throttle Body Cleaning
Diagnostic Procedures
Alcohol/Contaminants-in-Fuel Diagnosis
Backfire
Boost Control System Diagnosis
Crankshaft Position Sensor System Diagnosis
Cuts Out, Misses
Detonation/Spark Knock
Diagnostic Starting Point - Engine Controls
Diagnostic System Check - Engine Controls
Dieseling, Run-On
Electronic Ignition (EI) System Diagnosis
Engine Cranks But Does Not Run
Fuel Injector Balance Test with Special Tool
Fuel Injector Balance Test with Tech 2
Fuel Injector Circuit Diagnosis
Fuel Injector Solenoid Coil Test
Fuel Pump Electrical Circuit Diagnosis
Fuel System Diagnosis
Fuel Tank Leak Test
Hesitation, Sag, Stumble
Inspection/Maintenance (I/M) Catalyst System Set Procedure
Inspection/Maintenance (I/M) Complete System Set Procedure
Inspection/Maintenance (I/M) Exhaust Gas Recirculation (EGR) System Set Procedure
Inspection/Maintenance (I/M) System Check
Inspection/Maintenance (I/M) System DTC Table
Inspection/Maintenance Evaporative Emission System Set
Inspection/Maintenance Heated Oxygen Sensor Heater System Set
Inspection/Maintenance Heated Oxygen Sensor/Oxygen Sensor System Set
Lack of Power, Sluggishness, or Sponginess
Malfunction Indicator Lamp (MIL) Always On
Malfunction Indicator Lamp (MIL) Inoperative
Manifold Absolute Pressure Sensor Diagnosis
Poor Fuel Economy
Poor Fuel Fill Quality
Powertrain Relay Diagnosis
Rough, Unstable, or Incorrect Idle and Stalling
Surges/Chuggles
Diagnostic Trouble Codes
Diagnostic Trouble Code (DTC) List
DTC P0030
DTC P0036
DTC P0068
DTC P0069
DTC P0101
DTC P0102
DTC P0103
DTC P0107
DTC P0108
DTC P0112
DTC P0113
DTC P0116
DTC P0117
DTC P0118
DTC P0120
DTC P0125
DTC P0128
DTC P0130
DTC P0131
DTC P0132
DTC P0133
DTC P0134
DTC P0135
DTC P0136
DTC P0137
DTC P0138
DTC P0140
DTC P0141
DTC P0171
DTC P0172
DTC P0201, P0202, P0203, P0204, P0205, or P0206
DTC P0220
DTC P0230
DTC P0243
DTC P0300
DTC P0315
DTC P0325
DTC P0327 or P0332
DTC P0336
DTC P0341
DTC P0401
DTC P0403
DTC P0404
DTC P0405
DTC P0420
DTC P0442
DTC P0443
DTC P0446
DTC P0449
DTC P0452
DTC P0453
DTC P0455
DTC P0496
DTC P0506
DTC P0507
DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610
DTC P0641
DTC P0650
DTC P0651
DTC P0685
DTC P1106
DTC P1107
DTC P1111
DTC P1112
DTC P1114
DTC P1115
DTC P1125
DTC P1133
DTC P1134
DTC P1351
DTC P1352
DTC P1361
DTC P1362
DTC P1374
DTC P1380
DTC P1381
DTC P1404
DTC P1516
DTC P1518
DTC P1640
DTC P1650
DTC P1660
DTC P2101
DTC P2107
DTC P2108
DTC P2119
DTC P2120
DTC P2125
DTC P2135
DTC P2138
DTC P2227
DTC P2228
DTC P2229
Hard Start
Intermittent Conditions
Symptoms - Engine Controls
Electrical/Electronic Schematic Diagrams
Engine Controls Schematic Icons
Engine Controls Schematics
Electrical/Electronic Specifications
Altitude Versus Barometric Pressure
Diagnostic Trouble Code (DTC) Type Definitions
Diagnostic Trouble Code (DTC) Types
Ignition System Specifications
Temperature Versus Resistance
Gas, Vacuum and Fluids Schematics and Diagrams
Emission Hose Routing Diagram
Evaporative Emissions Hose Routing Diagram
Fuel Hose/Pipes Routing Diagram
General Diagnostic Information
Scan Tool Data Definitions
Scan Tool Data List
Scan Tool Output Controls
Mechanical Specifications
Fastener Tightening Specifications
Removal, Installation, and Replacement
Accelerator Pedal Position Sensor Replacement
Accelerator Pedal Replacement
Air Cleaner Assembly Replacement
Air Cleaner Element Replacement
Air Cleaner Inlet Duct Replacement
Barometric Pressure Sensor Replacement
Boost Control Solenoid Replacement
Camshaft Position Sensor Replacement
Crankshaft Position Sensor Replacement
Crankshaft Position System Variation Learn
Engine Coolant Temperature Sensor Replacement
Evaporative Emission Canister Purge Solenoid Valve Replacement
Evaporative Emission Canister Replacement
Evaporative Emission Canister Vent Solenoid Valve Replacement
Evaporative Emission Hoses/Pipes Replacement - Chassis/Canister
Evaporative Emission Hoses/Pipes Replacement - Engine/Chassis
Exhaust Gas Recirculation (EGR) System Cleaning
Exhaust Gas Recirculation Inlet Pipe Replacement
Exhaust Gas Recirculation Valve Outlet Pipe Replacement
Exhaust Gas Recirculation Valve Replacement
Filler Tube Replacement
Fuel Filter Replacement
Fuel Hose/Pipes Replacement - Filter to Engine
Fuel Hoses/Pipes Replacement - Filter to Tank
Fuel Injection Fuel Rail Assembly Replacement
Fuel Injector Replacement
Fuel Level Sensor Replacement
Fuel Pressure Gage Installation and Removal
Fuel Pressure Relief
Fuel Sender Assembly Replacement
Fuel Strainer Replacement
Fuel System Cleaning
Fuel Tank Draining
Fuel Tank Pressure Sensor Replacement
Fuel Tank Replacement
Heated Oxygen Sensor Replacement - Sensor 1
Heated Oxygen Sensor Replacement - Sensor 2
Ignition Coil Replacement
Ignition Control Module Replacement
Knock Sensor 1 Replacement
Knock Sensor 2 Replacement
Manifold Absolute Pressure Sensor Replacement
Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
Metal Collar Quick Connect Fitting Service
Plastic Collar Quick Connect Fitting Service
Powertrain Control Module Replacement
Spark Plug Replacement
Spark Plug Wire Inspection
Spark Plug Wire Replacement
Supercharger Bypass Valve Actuator Replacement
Throttle Body Assembly Replacement