Removal Procedure

Fig 1: Identifying IAC Valve And Retaining Bolts

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Battery Disconnect Caution .

Disconnect the negative battery cable.
Remove the air intake resonator.
Disconnect the idle air control (IAC) valve connector.
Remove the IAC valve retaining bolts.

NOTE: If the IAC valve has been in service: DO NOT push or pull on the IAC valve pintle. The force required to move the pintle may damage the threads on the worm drive. Also, DO NOT soak the IAC valve in any liquid cleaner or solvent, as damage may result.

Remove the IAC valve.

NOTE: Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage fuel system components.

Clean the IAC valve O-ring seal area, the pintle valve seat, and the air passage with a suitable fuel system cleaner.