Yukon/Denali 2WD V8-6.0L VIN U (2004)
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).
9. If required, clean and inspect the engine valley cover. Refer to Engine Valley Cover Cleaning and Inspection.
Installation Procedure
Important: All gasket surfaces should be free of oil or other foreign material during assembly.
1. Lubricate the NEW knock sensor seals (1) with clean engine oil.
2. Install the knock sensor oil seals (1) into the engine valley cover (2).
3. Install the engine valley cover with a NEW gasket onto the engine block.
Notice: Refer to Fastener Notice in Service Precautions.
