Removal Procedure
- Remove the intake manifold. Refer to Intake Manifold Replacement (RPOs LY2/LY6) or Intake Manifold Replacement (RPOs LC9/LMG/LY5/L76) or Intake Manifold Replacement (RPO L92 - First Design) or Intake Manifold Replacement (RPO L92 - Second Design) .
- Remove the engine valley cover bolts (506).
- Remove the engine valley cover (555) and gasket (556).
- Remove the O-ring seals (537) from the cover.
- Remove the oil pressure sensor (706) and washer (707).