Disconnect the cable from the negative battery terminal. Remove the air filter housing (4-cylinder) or air intake duct (V6) from the throttle body. Disconnect electrical connectors, label and detach vacuum hoses, accelerator and cruise control cables, and coolant hoses. Remove throttle body mounting bolts, throttle body and gasket. Reverse installation with new gasket, adjust cables, check coolant level, and perform idle air volume relearn (3.5L V6).