GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 804903  Size: SH
  1. Remove the oil filler spout by unlocking the tab and twisting counterclockwise.

  2. Object Number: 785764  Size: SH
  3. Disconnect the following from the remote power steering fluid reservoir (1):
  4. • The vacuum brake booster hose
    • The wiring harness (2)
  5. Disconnect the vacuum brake booster hose from the vacuum source.

  6. Object Number: 785730  Size: SH
  7. Remove the remote power steering fluid reservoir mounting bolts (1, 3) ONLY.
  8. Position the reservoir forward away from the cam cover.

  9. Object Number: 785856  Size: SH
  10. Disconnect the following from the front of the throttle body heater inlet hose/pipe bracket:
  11. • The camshaft position (CMP) sensor connector
    • The left knock sensor connector (1)
    • The vacuum hoses

    Object Number: 918939  Size: SH
  12. Remove the left cover (1) from the cam cover (3).

Installation Procedure


    Object Number: 918939  Size: SH

    Important: 

       • Ensure the flange at the top edge of the cover (1) is upward against the intake manifold.
       • Ensure the vacuum pipe and sensor leads do not become trapped under the cover (1).

  1. Fully seat the left cover (1) over the following:
  2. • The cam cover (3)
    • The throttle body heater inlet hose/pipe (2)

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 785730  Size: SH
  3. Install the remote power steering fluid reservoir mounting bolts (1, 3).
  4. Tighten

        • Tighten the remote power steering fluid reservoir to intake plenum mounting bolts (1) to 9 N·m (80 lb in).
        • Tighten the remote power steering fluid reservoir to cylinder head mounting bolt (3) to 25 N·m (18 lb ft).

    Object Number: 804903  Size: SH

    Important: Ensure the cover insulation does not become trapped under the oil filler spout.

  5. Install the oil filler spout under the cover by twisting clockwise and snapping in place.

  6. Object Number: 785764  Size: SH
  7. Connect the following to the remote power steering fluid reservoir (1):
  8. • The vacuum brake booster hose
    • The wiring harness (2)

    Object Number: 785856  Size: SH
  9. Connect the following to the front of the throttle body heater inlet hose/pipe bracket:
  10. • The camshaft position (CMP) sensor connector
    • The left knock sensor connector (1)
    • The vacuum hoses
  11. Connect the vacuum brake booster hose to the vacuum source.