First, you should drain the coolant and disconnect the following parts: the Intake Air Temperature (IAT) sensor electrical connector, the breather tube, the Idle Air Control (IAC) valve electrical connector, the Throttle Position (TP) sensor electrical connector, the accelerator controls cable, the cruise control cable, the
Throttle Body coolant bypass hoses, and the heater pipe nut. In addition, the air intake tube, the accelerator control cable bracket, the nuts holding the throttle body to the intake manifold, and the throttle body assembly should be removed.