Reference Information

2008 Pontiac Grand Prix BaseSECTION Reference Information
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Schematic Reference 

Engine Controls Schematics

Connector End View Reference 

Component Connector End Views

Description and Operation 

Fuel System Description

Electrical Information Reference 

DTC Type Reference 

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference 

Control Module References for scan tool information

Special Tools 

  • J 41413-SPT  High Intensity White Light. See Special Tools .
  • J 41413-VLV  EVAP Port Vent Fitting Tool
  • J 41413-200  Evaporative Emissions System Tester (EEST). See Special Tools .
  • J 41413-300  EVAP Cap and Plug Kit. See Special Tools .
  • CH-48096  EVAP Service Port Access Tool. See Special Tools .
  • GE-41415-50  Fuel Tank Cap Adapter
RENDER: 1.0x

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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.