Yukon XL 2500 4WD V8-6.0L VIN N (2006)
Engine Valley Cover: Service and Repair
Engine Valley Cover Replacement
Removal Procedure
1. Remove the intake manifold.
2. Gently pry up the rubber covers.
3. Disconnect the knock sensor 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 old gasket.
8. Remove the knock sensor oil seals (1) from the cover (2).