Removal 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.
- Loosen the outlet duct clamp at the upper intake manifold cover.
- Remove the upper intake manifold cover from the outlet duct.
- Remove the upper intake manifold cover.
- Drain the cooling system. Refer to Draining and Filling Cooling System (without HP2) .
- Remove the radiator inlet hose from the water outlet tube.
- Remove the bolt and wiring harness bracket at the thermostat housing.
- Disconnect the turbocharger coolant return hose from the turbocharger bypass valve.
- Remove the turbocharger bypass valve and sealing washer from the water outlet tube.
- Remove the water outlet bolts.
- Remove the water outlet.
- Remove and discard the O-ring seal.