Cutlass V6-191 3.1L VIN M SFI (1998)
Idle Air Control (IAC): Service and Repair
REMOVAL PROCEDURE
1. Remove the electrical connector from the idle air control valve.
2. Remove the idle air control valve (2) attaching screws.
3. Remove the idle air control valve.
4. Remove the idle air control valve O-ring.
INSTALLATION PROCEDURE
NOTICE: The Idle Air Control (IAC) valve may be damaged if installed with the cone (pintle) extended more than 28 mm (1.1/8 in). Measure the
distance that the valve is extended before installing a new valve. The distance from the idle air control valve motor housing to the end of the idle air
control valve pintle should be less than 28 mm (1-1/8 in). Manually compressing the pintle until the extension is less than 28 mm (1-1/8 in).
1. Install the new idle air control O-ring.
2. Install the idle air control valve into the throttle body.
3. Install the idle air control valve (2) attaching screws.
