Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure
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.
  1. Carefully clean the throttle body mounting surfaces of any gasket and/or seal material.
  2. Fig 1: View Of Throttle Body
    GM1285255Courtesy of GENERAL MOTORS CORP.
  3. Install the throttle body and NEW gasket.
  4. NOTE: Refer to Fastener Notice .
  5. Install the throttle body bolts.

    Tighten:  Tighten the throttle body bolts to 10 N.m (89 lb in).

  6. Fig 2: View Of Wiring Harness Conduit
    GM1285256Courtesy of GENERAL MOTORS CORP.
  7. Install the wiring harness conduit.
  8. Fig 3: View Of Throttle Body Electrical Connector
    GM945417Courtesy of GENERAL MOTORS CORP.
  9. Install the throttle body electrical connector.
  10. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
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.