Engine Valley Cover Cleaning and Inspection
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Important:
- Do not use the valley cover knock sensor oil seals again. Install NEW oil seals during assembly.
- Do not use the valley cover gasket again. Install a NEW gasket during assembly.
- Remove the knock sensor oil seals (1) from the valley cover (2).
- Clean the valley cover in solvent.WARNING: Wear safety glasses in order to avoid eye damage.
- Dry the valley cover with compressed air.
- Inspect the gasket sealing surfaces for excessive scratches or gouging. Refer to Replacing Engine Gaskets .
- Inspect the valley cover oil seal bores for excessive scratches or gouging.