Inspection & Repair Procedure
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the thermostats for sticking, cracks, and leakage of wax.
- Replace the thermostats if damage is found.
- Clean the thermostat housing and thermostat housing cover sealing surfaces.