D 250 Pickup V8-5.9L VIN Z (1992)
Adjusting Idle Speed Control (ISC) Actuator
9.
Adjust the extension screw on the actuator shaft until the rpm is within the specifications shown:
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If vehicle mileage is less than 1000 miles, set to 2650-2750 rpm.
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If vehicle mileage is greater than 1000 miles, set to 2750-2850 rpm.
10.
Shut off vehicle.
11.
Connect the ISC actuator motor electrical connector.
12.
Connect the coolant temperature sensor.
13.
Install air cleaner.
