Coolant Temperature Sensor/Switch (For Computer): Service and Repair

WARNING: HOT, PRESSURIZED COOLANT CAN CAUSE INJURY BY SCALDING. COOLING SYSTEM MUST BE PARTIALLY DRAINED BEFORE REMOVING THE COOLANT TEMPERATURE SENSOR.

Engine Coolant Temperature Sensor - Typical:

The coolant temperature sensor is installed in the thermostat housing.

REMOVAL
1. Partially drain cooling system until coolant level is below cylinder head. Observe the WARNINGS in Cooling.
2. Disconnect coolant temperature sensor wire connector.
3. Remove sensor from thermostat housing.

INSTALLATION
1. Apply sealant to sensor threads (new replacement sensors will have sealant already applied).
2. Install coolant temperature sensor into thermostat housing. Tighten to 11 N.m (8 ft. lbs.) torque.
3. Connect wire connector.
4. Fill cooling system.