CTS V8-5.7L VIN P (2004)
Engine Valley Cover: Service and Repair
Engine Valley Cover Replacement
Removal Procedure
1. Remove the intake manifold.
2. Gently pry up the rubber grommets.
3. Disconnect the knock sensor wire harness electrical connectors.
4. Remove the knock sensors.
5. Remove the engine valley cover bolts.
6. Remove the engine valley cover and gasket.
7. Discard the engine valley cover gasket.
8. Remove the knock sensor oil seals (1) from the cover (2).
9. Clean and inspect the engine valley cover.