chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Oil Pressure Switch (For Fuel Pump) > < Idle Air Control (IAC) Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 5725
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specific application.

Measure (only if Installing a new IAC Valve)
Distance between tip of IAC valve pintle and mounting flange (see image).
-

If greater than 28 mm, use finger pressure to slowly retract the pintle. The force required to retract the pintle of a new valve will not cause
damage to the valve.

INSTALL OR CONNECT

1. Lubricate IAC valve O-ring with clean engine oil.
2. IAC valve assembly.
3. Attaching screws coated with appropriate thread-locking material.

Tighten
IAC valve attaching screws to 3.0 Nm (27 lb. in.)

4. Electrical connector.
5. Reset IAC valve pintle position:

A. Disconnect negative battery cable for at least ten seconds to clear PCM memory.
B. Reconnect negative battery cable.
C. Start engine and check for proper idle operation.

Oil Pressure Switch (For Fuel Pump) > < Idle Air Control (IAC) Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 5725