Idle Air Control Valve: Installation
- Before installing new IAC valve, measure the distance that valve is extended. See Fig 1 . If cone is extended too far, valve may be damaged when installed. Distance must be no greater than 1 1/8" (28 mm).
- Measurement should be taken from valve housing flange to end of cone. Determine if IAC valve is Type I or Type II. Type I has a collar at electrical terminal and Type II does not. See Fig 1 .
- To retract Type I, exert firm pressure on valve. To retract Type II, compress retaining spring while turning valve in with a clockwise rotation. Return spring to original position.
- Either valve should be installed with a new gasket. Tighten to 13 ft. lbs. (18 N.m). On 2.8L (VIN W) install valve using new "O" ring. Lubricate "O" ring with engine oil before installation. Tighten attaching screws to 30 INCH lbs. (3.4 N.m).
- Install electrical connector on valve. Start engine. ECM will reset idle speed when vehicle is driven above 35 MPH, or when engine is started and ignition is turned off.
NOTE:
When replacing IAC valve or any other sensor, it is important to check that correct replacement part number is used.