Inspection Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the engine coolant crossover (308) for the following:
- Corrosion or damage to the gasket sealing surfaces
- Corrosion or damage to the thermostat bypass hose fitting
- Corrosion or damage to the heater hose fitting
- Corrosion or damage to the threads of the water outlet
- Inspect the water outlet (311) for corrosion or damage.