Removal (4.8L, 5.3L & 6.0L With Electronic Throttle Control)
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.
- Disconnect negative battery cable. Drain cooling system into suitable container. Loosen retaining bolt on intake manifold sight shield at top of engine. See Figure. Remove intake manifold sight shield from top of engine.
- Loosen hose clamp at outlet side of MAF sensor. Loosen air inlet tube hose clamp at throttle body. Remove radiator inlet hose clip from air inlet tube. Remove air inlet tube. Disconnect Throttle Actuator Control (TAC) motor harness connector.
- Disconnect Throttle Position (TP) sensor harness connector. Disconnect PCV hose at throttle body. Remove throttle body mounting nuts. Disconnect engine coolant air bleed hose from throttle body. Remove throttle body. Remove throttle body flange gasket and discard.