Removal (4.8L, 5.3L & 6.0L Without 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 accelerator control cable from throttle body. Disconnect cruise control cable from throttle body (if equipped).
- Disconnect vacuum hose at throttle body. Disconnect harness connectors from Throttle Position (TP) sensor and Idle Air Control (IAC) valve. Disconnect coolant hose from throttle body.
- Disconnect coolant hose from vapor vent pipe. Remove throttle body mounting nuts. Remove throttle body. Remove throttle body flange gasket and discard.