Cutlass Ciera Cruiser V6-3100 3.1L VIN M SFI (1996)
Idle Air Control (IAC) Valve: Adjustments
Idle Air Control Valve Pintle Retraction (Manually)
Before installing new IAC valve, measure the distance that the valve is extended. Measurement should be made from motor housing to end of cone.
Distance should be no greater than 28 mm (1 1/8 inch). If the cone is extended too far, adjustment is required or damage may occur to the valve when
installed. Adjust IAC by manually compressing or extending the pintle to achieve the correct length.