GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 2002986  Size: SH
  1. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Remove the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement .
  4. Disconnect the engine wiring harness intake (2) and exhaust (1) electrical connectors from the camshaft position actuator solenoid valves.

  5. Object Number: 2074398  Size: SH
  6. Remove the engine wiring harness clips (1, 2) from the camshaft cover.
  7. Disconnect the engine wiring harness electrical connector from the evaporative emission (EVAP) canister purge solenoid valve.
  8. Remove the ignition coils. Refer to Ignition Coil Replacement .

  9. Object Number: 2074432  Size: SH
  10. Remove the engine wiring harness clip (1) from the turbocharger.
  11. Disconnect the PCV hose (2). Refer to Metal Collar Quick Connect Fitting Service .

  12. Object Number: 2003083  Size: SH
  13. Remove the engine wiring harness clips (1) from the camshaft cover.

  14. Object Number: 2074476  Size: SH
  15. Disconnect the fuel line (1) from the valve cover.

  16. Object Number: 1825751  Size: SH

    Important: The PCV hose should NOT be disconnected from the camshaft cover as damage to the hose connection will result.

  17. Remove the camshaft cover bolts.
  18. Remove the camshaft cover.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1825751  Size: SH
  1. Install the camshaft cover and bolts.
  2. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 2074476  Size: SH
  3. Connect the fuel line (1) to the valve cover.

  4. Object Number: 2003083  Size: SH
  5. Install the engine wiring harness clips (1) from the camshaft cover.

  6. Object Number: 2074432  Size: SH
  7. Connect the PCV hose (2). Refer to Metal Collar Quick Connect Fitting Service .
  8. Install the engine wiring harness clip (1) to the turbocharger.

  9. Object Number: 2074398  Size: SH
  10. Install the ignition coils. Refer to Ignition Coil Replacement .
  11. Connect the engine wiring harness electrical connector from the EVAP canister purge solenoid valve.
  12. Install the engine harness clips (1, 2) to the camshaft cover.

  13. Object Number: 2002986  Size: SH
  14. Connect the engine wiring harness intake (2) and exhaust (1) electrical connectors to the camshaft position actuator solenoid valves.
  15. Install the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement .
  16. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  17. Install the air cleaner. Refer to Air Cleaner Assembly Replacement .