Idle Speed/Throttle Actuator - Electronic: Service and Repair

ISC Valve Removal:

1. Disconnect ISC valve connector.
2. Remove air pipe.
3. Drain cooling system to below level of valve.
4. Disconnect water and air hoses.
5. Remove ISC valve.
6. Reverse removal procedure to install. Use a new gasket and tighten mounting bolts to 25 - 35 in lb (2.8 - 4.0 Nm).