Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Engine Coolant Temperature Sensor Replacement

Removal Procedure

Caution: Allow sufficient time for the engine to coot before removing the ECT sensor. A hot engine may cause an excessive coolant loss or a personal Injury.

Important: If necessary, remove the windscreen wiper motor.
Notice:

1. Partially drain the coolant system.

Notice:Mask off the intake ports. Accidental entry of foreign objects can cause severe engine damage.

2. Remove the Intake Plenum.
3. Remove the Intake Bridge.
4. Disconnect the wiring harness from the ECT sensor.

Engine Coolant Temperature Sensor:

5. Remove the ECT sensor (1) from the Coolant Bridge.
6. Clean any spilled coolant.

Installation Procedure

Engine Coolant Temperature Sensor:

Notice: Apply a non-hardening sealer to the sensor threads prior to installation in order to prevent coolant leaks. Use P/N 1050805 or the equivalent.

Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components enless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

1. Install the ECT sensor (1) into the coolant bridge.

Tighten
Tighten the ECT Sensor to 20 Nm (15 lb ft).

2. Connect the wiring harness to the ECT sensor
3. Install the Intake Bridge.
4. Install the Intake Plenum.
5. If the wiper motor is removed, install the windscreen wiper motor.
6. Refill the coolant system.