GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1468311  Size: SH
  1. Remove the intake manifold. Refer to Intake Manifold Replacement .
  2. Remove the oil pressure switch. Refer to Engine Oil Pressure Sensor and/or Switch Replacement .
  3. Remove the engine valley retaining bolts (1).
  4. Remove the engine valley cover (2).
  5. Remove the engine valley gasket (3).
  6. Remove the O-rings (4) from the engine valley cover (2).

Installation Procedure


    Object Number: 1468311  Size: SH
  1. Install the O-rings (4) to the engine valley cover (2).
  2. Install the engine valley gasket (3).
  3. Install the engine valley cover (2).
  4. Install the retaining bolts (1).
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Tighten the engine valley retaining bolts.
  7. Tighten
    Tighten the engine valley cover bolts to 25 N·m (18 lb ft).

  8. Install the intake manifold. Refer to Intake Manifold Cleaning and Inspection .
  9. Install the oil pressure switch. Refer to Engine Oil Pressure Sensor and/or Switch Replacement .