2005 Pontiac Grand Prix BaseFACTORY OEM SERVICE PROCEDURE

Engine Controls Component Views

Fig 1: Left Front Of The Engine Compartment Component View
GM1203635Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Powertrain Control Module (PCM)
Fig 2: Lower Front of the Engine Component View
GM1203636Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Knock Sensor (KS) Bank 1
2 G113
3 G111
4 Starter Solenoid
5 Starter
6 Starter Solenoid Terminal S
7 Fusible Link
8 Positive Battery Cable
9 Engine Oil Level Switch
Fig 3: Top Left Front of Engine Component View
GM1321371Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine Coolant Temperature (ECT) Sensor
2 Engine Coolant Temperature (ECT) Sensor Jumper Harness
3 C126
Fig 4: Upper Front Of The Engine Component View
GM1203637Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Manifold Absolute Pressure (MAP) Sensor (L26)
2 Throttle Actuator Control (TAC) Module
3 Engine Coolant Temperature (ECT) Sensor
4 Fuel Injector 5
5 Fuel Injector 3
6 Fuel Injector 1
Fig 5: Left Upper Front of Engine Component View
GM1319937Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Supercharger Boost Control Solenoid (L32)
2 C126
3 C110
Fig 6: Rear Of The Engine Component View
GM1203638Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Intake Air Temperature (IAT) / Mass Air Flow (MAF) Sensor
2 Exhaust Gas Recirculation (EGR) Valve
3 Evaporative Emission (EVAP) Canister Purge Solenoid
Fig 7: Upper Rear Of the Engine Component View
GM1203639Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Exhaust Gas Recirculation (EGR) Valve
2 Fuel Injector 6
3 Fuel Injector 4
4 Fuel Injector 2
5 Generator
6 Barometric Pressure (BARO) Sensor (L32)
7 Heated Oxygen Sensor (HO2S) Sensor 1
8 Manifold Absolute Pressure (MAP) Sensor (L32)
Fig 8: Upper Left Rear Of Engine Component View (L36/L67)
GM374691Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Exhaust Gas Recirculation (EGR) Valve
2 Heated Oxygen Sensor (HO2S) Sensor 1
Fig 9: RF Of The Engine Compartment Connectors View (L36/L67)
GM1043757Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Camshaft Position (CMP) Sensor
2 Ignition Control Module (ICM) Wiring Harness
3 C110
4 Ignition Control Module (ICM)
5 Ignition Coils
6 G112
7 Ignition Control Module (ICM) Wiring Harness
8 Ignition Control Module (ICM) Wiring Harness
9 Crankshaft Position (CKP) Sensor
Fig 10: Lower Right Side of the Engine Component View
GM1203640Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 C125
2 Engine Oil Pressure (EOP) Switch
3 Vehicle Speed Sensor (VSS)
Fig 11: Underbody Component View
GM1203644Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Heated Oxygen Sensor (HO2S) Sensor 2
Fig 12: Lower Rear of the Engine View (L36/L67)
GM1043361Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Knock Sensor (KS) Bank 2
2 Knock Sensor (KS) Bank 2 Connector
3 Knock Sensor (KS) Bank 2 Jumper Harness
4 C125
Fig 13: Fuel Pump and Sender Assembly Component View
GM886471Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Line Quick Connector
2 Fuel Pump
3 Base Plate
4 Fuel Strainer
5 Fuel Level Sensor
6 Springs
7 Fuel Tank Pressure (FTP) Sensor
Fig 14: Left Footwell Component View
GM1320525Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Accelerator Pedal Position (APP) Sensor
2 Brake Pedal Position Sensor
Fig 15: Left Rear Of The Vehicle Component View
GM1203646Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Evaporative Emission (EVAP) Canister Vent Solenoid
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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