Operation CHARM: Car repair manuals for everyone.

Incorrect Idle Speed

INCORRECT IDLE SPEED

Check In Order Shown:

Warm Engine
1. Engine coolant temperature sensor.
2. Closed throttle position switch.
3. Air conditioning switch and A/C compressor clutch relay.
4. Idle speed control motor.

Cold Engine
1. Engine coolant temperature sensor.
2. Closed throttle position switch.
3. Idle speed control motor.