Express 1/2 Ton Van AWD V8-5.3L VIN T (2003)
1. Measure the distance between the tip of the IAC valve pintle and the mounting surface (1). If the distance is more than 28 mm (1.1 in) use finger
pressure to slowly retract the pintle. The force required to retract the pintle of a new valve does not cause damage to the valve.
IMPORTANT: If installing a new IAC valve, be sure to replace the IAC valve with an identical part. The pintle shape of the IAC valve and the
diameter of the IAC valve are designed for the specific application.
2. Lubricate the IAC valve O-ring (2) with clean engine oil.
3. Install the IAC valve O-ring (2) on the IAC valve (3).
4. Install the IAC valve (3).
5. Apply LOCTITE 262 to the IAC valve attaching screw threads if necessary.
NOTE: Refer to Fastener Notice in Service Precautions.
6. Install the IAC valve attaching screws (4).
Tighten
Tighten the screws to 3 N.m (27 lb in).
