Catera V6-3.0L VIN R (1997)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
Engine Coolant Temperature (ECT) Sensor
Engine Coolant Temperature Sensor
ECT Sensor Replacement
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.
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: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
Important: If necessary, remove the windscreen wiper motor. Refer to Wiper and Washer System.
Removal Procedure
1. Partially drain the coolant system.
2. Remove the Intake Plenum. Refer to Fuel Delivery and Air Induction / Intake Air Plenum.
3. Remove the Intake Bridge. Refer to Engine / Intake Manifold.
Notice: Mask off the intake ports. Accidental entry of foreign objects can cause severe engine damage.
4. Disconnect the wiring harness from the ECT sensor.
5. Remove the ECT sensor (1) from the Coolant Bridge.
6. Collect the coolant.
Installation Procedure
1. Install the ECT sensor (1) into the coolant bridge.
2. Connect the wiring harness to the ECT sensor.
3. Install the Intake Bridge.
4. Install the Intake Plenum.
5. If the Plenum is removed, install the windscreen wiper motor.
6. Refill the coolant system.
