buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 3061 > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 3059
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair

ENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENT

REMOVAL PROCEDURE

IMPORTANT:  Care must be taken when handling engine coolant temperature sensor. Damage to the engine coolant temperature sensor will effect
proper operation of the fuel injection 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 (Vac-N-Fill).  See: Engine, Cooling and Exhaust/Cooling System/Service and Repair

2. Remove the intake manifold cover.
3. Disconnect the engine harness electrical connector (2) from the ECT sensor.

4. Remove the ECT sensor.

Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 3061 > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 3059