Installation 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.
- Install a new O-ring seal on the thermostat bypass pipe.
- Lightly lubricate the O-ring seal with coolant.
- Install a new O-ring seal for the bypass pipe to the water pump.
- Install the bypass pipe in the thermostat housing crossover.
- Install the thermostat housing crossover with the thermostat bypass pipe attached. Refer to Thermostat Housing Crossover Replacement (6.6L Engine) .