Grand Prix V6-191 3.1L VIN M SFI (1998)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
REMOVE OR DISCONNECT
1. Relieve coolant pressure.
2. Air intake duct.
3. Disconnect the negative battery cable.
4. Remove the electrical connector.
5. Using a deep well socket and extension, remove the sensor.
INSTALL OR CONNECT
1. Coat engine coolant temperature sensor threads with sealer P/N 9985253 or equivalent.
2. Install the sensor in the engine.
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Tighten the sensor to 23 Nm (17 lb. ft.).
3. Install the electrical connector.
4. Air intake duct.
5. Connect the negative battery cable.
6. Start the engine.
7. Check for leaks.
8. Check the coolant level, replenish as needed.