Throttle Body: Removal
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Remove air cleaner resonator from top of engine. Disconnect EVAP canister purge line from throttle body. Disconnect throttle body harness connector. Remove 4 throttle body-to-intake manifold bolts. See Figure. Remove throttle body. Remove flange gasket and discard.