K 2500 Suburban 4WD V8-5.7L VIN R (1999)
Idle Air Control Motor (IAC): Service and Repair
IAC Valve Replacement
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Disconnect the IAC valve harness connector.
3. Remove the IAC valve attaching fasteners.
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.
