April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal Procedure

Fig 1: Identifying Air Intake Duct

GM69062

Courtesy of GENERAL MOTORS CORP.

Drain coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
Disconnect the intake air temperature (IAT) sensor electrical connector.
Disconnect the breather tube from the air intake tube.
Remove the air intake tube.

Fig 2: View Of IAC Valve Electrical Connector

GM69056

Courtesy of GENERAL MOTORS CORP.

Disconnect the idle air control (IAC) valve electrical connector.

Fig 3: View Of TP Sensor & Electrical Connector

GM69065

Courtesy of GENERAL MOTORS CORP.

Disconnect the throttle position (TP) sensor electrical connector.

Fig 4: View Of Accelerator Cable Bracket

GM12689

Courtesy of GENERAL MOTORS CORP.

Remove the accelerator control cable bracket. Refer to Accelerator Controls Cable Bracket Replacement .

Fig 5: Throttle Body Assembly

GM12688

Courtesy of GENERAL MOTORS CORP.

Disconnect the throttle body coolant bypass hoses.
Disconnect the heater pipe nut at the throttle body.
Remove the nuts and bolts holding the throttle body to the intake manifold.
Remove the throttle body assembly.