Envoy 2WD V6-4.3L VIN W (1998)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
CAUTION: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
REMOVAL PROCEDURE
1. Relieve the coolant pressure.
2. Disconnect the negative battery cable.
3. Drain the cooling system below the level of the sensor.
4. Disconnect the electrical connector releasing locking tab.
5. Remove the coolant sensor from engine.
INSTALLATION PROCEDURE
1. Coat the threads (only) with sealer P/N 9985253 or equivalent.
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Tighten the sensor to 13 N.m (10 lb. ft.).
2. Install the coolant sensor in the engine.
3. Connect the electrical connector.
4. Refill the cooling system.
5. Connect the negative battery cable.
