Idle Speed/Throttle Actuator - Electronic: Service and Repair

IAC VALVE REMOVAL
1. DISCONNECT NEGATIVE TERMINAL CABLE FROM BATTERY.

CAUTION: Work must be started at least 90 seconds after the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery.

2. DRAIN ENGINE COOLANT
3. DISCONNECT IAC VALVE CONNECTOR.
4. REMOVE IAC VALVE



(a) Remove the 2 bolts, and disconnect the IAC valve from the air intake chamber.
(b) Remove the gasket.
(c) Disconnect the following hoses from the IAC valve, and remove the IAC valve:



(1) Air hose
(2) Water bypass hose (from No. 2 water bypass pipe)
(3) Water bypass hose (from No. 4 water bypass pipe)



(d) Remove the seal washer and check valve.



IAC VALVE INSTALLATION
1. INSTALL IAC VALVE



(a) Install the check valve and seal washer.
NOTE: Be careful to install the check valve and seal washer in the right direction.
(b) Connect the following hoses:



(1) Air hose
(2) Water bypass hose (from No. 2 water bypass pipe)
(3) Water bypass hose (from No. 4 water bypass pipe)
(c) Install a new gasket and the IAC valve with the 2 bolts.

Torque: 21 Nm (15 ft.lb)




2. CONNECT IAC VALVE CONNECTOR
3. FILL WITH ENGINE COOLANT
4. CONNECT NEGATIVE TERMINAL CABLE TO BATTERY