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

WARNING: Make sure that the engine is cold before loosening the coolant reservoir cap or working on the cooling system.

Fig. 1:

Remove
- Open the hood and fit a wing cover.
- Open the trunk and remove the battery cover.
- Disconnect the battery ground lead.
- Carefully slacken coolant reservoir cap to relieve coolant pressure. Re-tighten coolant reservoir cap.
- Disconnect harness plug from the coolant temperature sensor.
- Undo and remove the temperature sensor and copper washer from the "B" bank reservoir housing.
- Clean the housing.

Refit
- Fitting a new temperature sensor is the reverse of the removal procedure.
- Always use a new copper washer.