Astro Van M L4-151 2.5L (1985)
Idle Speed/Throttle Actuator - Electronic: Service and Repair
REMOVAL
1.
Disconnect battery ground cable, then remove air cleaner assembly.
2.
Disconnect IAC valve electrical connector.
3.
Remove IAC valve using a suitable 1-1/4 inch wrench and discard gasket.
Fig. 338 IAC Valve Identification (Typical)
INSTALLATION
Prior to installation, identify IAC valve as being either Type 1 or Type 2, Fig. 338. If dimension ``A'' is greater than 1-1/8 inch, reduce as follows:
On Type 1, exert a firm pressure on conical valve to retract it.
On Type 2, while turning IAC valve in clockwise direction, compress retaining spring. Return spring to original position with straight part of spring
aligned with flat surface of valve.
1.
Install IAC valve in throttle body using new gasket. Torque IAC valve to 13 ft. lbs.
2.
Connect IAC valve electrical connector.
3.
Start engine and allow to reach operating temperature.
4.
On 1985 models, IAC valve will automatically reset idle speed after vehicle is driven over 30 mph on V6 models, or over 35 mph on 4 cylinder
models. On 1986 - 90 models, IAC valve will automatically reset after engine has been turned Off.
