XJ-S Convertible (XJ27) L6-4.0L (1996)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
WARNING: Allow the engine to cool before working on the cooling system.
Fig. 1 Coolant Temperature Sensor
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Open the hood and fit a wing cover.
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Open the trunk and remove the battery cover.
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Disconnect the battery ground lead.
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Carefully release the coolant pressure at the header tank.
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Re-tighten the header tank cap.
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Disconnect the coolant temperature sensor multi-plug.
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Undo and remove the coolant temperature sensor from the thermostat housing.
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Refitting a new coolant temperature sensor is the reverse of the removal procedure.