GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 G6 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Intake Manifold Replacement

Removal Procedure

    Object Number: 1571757 Size: SH
  1. Remove the throttle body. Refer to Throttle Body Assembly Replacement .
  2. Remove the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  3. Remove the evaporative emission (EVAP) canister purge solenoid valve tube. Refer to Plastic Collar Quick Connect Fitting Service .

    4. Object Number: 1571772 Size: SH
  4. Reposition the brake booster vacuum hose clamp at the intake manifold.
  5. Remove the brake booster hose from the intake manifold.
  6. Remove the oil level indicator tube bolt.

    7. Object Number: 1571760 Size: SH
  7. Disconnect the engine harness electrical connector (1) from the fuel injector inline electrical connector (2).
  8. Remove the fuel injector inline connector clip from the intake manifold.

    9. Object Number: 1571236 Size: SH
  9. Disconnect the engine harness electrical connector (1) from the knock sensor harness.
  10. Remove the knock sensor connector clip from the oil level indicator tube.

    11. Object Number: 1571773 Size: SH
  11. Remove the intake manifold bolts and nuts.
  12. Remove the intake manifold.

    13. Important: The intake manifold gasket is reusable. Only replace the gasket if damage has occurred.

  13. Remove the intake manifold gasket, if necessary.

Installation Procedure

    Object Number: 1571773 Size: SH
  1. Install the intake manifold gasket, if necessary.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the intake manifold.
  3. Install the intake manifold bolts and nuts.

    4. Tighten
    Tighten the bolts and nuts to 10 N·m (89 lb in).


    Object Number: 1571236 Size: SH
  4. Connect the engine harness electrical connector (1) to the knock sensor harness.
  5. Install the knock sensor connector clip to the oil level indicator tube.

    6. Object Number: 1571760 Size: SH
  6. Connect the engine harness electrical connector (1) to the fuel injector inline electrical connector (2).
  7. Install the fuel injector inline connector clip to the intake manifold.
  8. Install the oil level indicator tube bolt.

    9. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1571772 Size: SH
  9. Install the brake booster hose to the intake manifold.
  10. Position the brake booster vacuum hose clamp at the intake manifold.

    11. Object Number: 1571757 Size: SH
  11. Install the EVAP canister purge solenoid valve tube. Refer to Plastic Collar Quick Connect Fitting Service .
  12. Install the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  13. Install the throttle body. Refer to Throttle Body Assembly Replacement .