Inspection Procedure
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the thermostats for sticking, cracks, and/or leakage of wax.
- Replace the thermostats if damage is found.
- Clean the thermostat housing and thermostat housing cover sealing surfaces.