gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 5310 > < Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 5308
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Engine Coolant Temperature Sensor Replacement

Removal Procedure

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

1. Remove the intake manifold tube.
2. Drain the coolant to a level below the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (Static Fill)

Draining and Filling Cooling System (Vac N Fill).

3. Disconnect the engine wiring harness electrical connector(s) (1) from the appropriate ECT sensor (s).

4. Remove the appropriate ECT sensor(s) (1).

Installation Procedure

Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 5310 > < Engine - MIL ON P0116/P1400 Set In Very Cold Temps|Page 5308