gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 8416 > < Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 8414
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair

ENGINE COOLANT TEMPERATURE 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. Drain the cooling system to a level below the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (Static Fill)

Draining and Filling Cooling System (w/RPO HP2) Draining and Filling Cooling System (Vac-N-Fill).

2. Disconnect the ECT sensor electrical connector (3).

3. Remove the ECT sensor electrical connector from the oil fill tube bracket.

4. Remove the ECT sensor.

INSTALLATION PROCEDURE

1. If installing the old sensor, coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent.

NOTE:  Refer to Fastener Notice.

2. Install the ECT sensor.

Tighten the sensor to 50 N.m (37 lb ft).

Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 8416 > < Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 8414