gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 2358 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 2356
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair

ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENT

REMOVAL PROCEDURE

NOTE:  Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

1. Turn OFF the ignition.
2. Remove the engine cover.
3. Drain the coolant below the level of the ECT sensor. Refer to Draining and Filling Cooling System in Cooling System.

4. Disconnect the electrical connector.

5. Carefully remove the ECT sensor.

INSTALLATION PROCEDURE

NOTE:
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Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

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Refer to Component Fastener Tightening Notice in Service Precautions.

1. Coat the threads with sealer GM P/N 9985253 or equivalent.

Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 2358 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 2356