Grand Marquis V8-4.6L Flex Fuel (2010)
Engine Temperature Sensor: Service and Repair
Cylinder Head Temperature (CHT) Sensor
Removal and Installation
1. Disconnect the battery ground cable. For additional information, refer to Battery.
2. Rotate the tensioner clockwise and remove the accessory drive belt from the generator pulley.
3. Loosen the 2 lower generator bolts.
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To install, tighten to 25 Nm (18 lb-ft).
4. Remove the 2 generator bracket bolts and position the generator and bracket aside.
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To install, tighten to 10 Nm (89 lb-in).
5. Disconnect the Cylinder Head Temperature (CHT) sensor electrical connector.
6. Using a 19 mm (0.74 in) 12 point crowfoot wrench, remove the CHT sensor.
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Calculate the correct torque wrench setting for the following torque.
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To install, tighten to 26 Nm (19 lb-ft).
7. NOTE: The CHT sensor is not to be reused. Always install a new sensor.
To install, reverse the removal procedure.
