Removing
1. Remove the air filter assembly. Refer to Procedure: Air Filter (303-12A Intake air distribution and filtration - 3.2L NA - I6, Removal and installation).
2. Remove the engine cover. Refer to Procedure: Engine Cover - 2.2L Duratorq - Td4 (501-05 Interior trim, Removal and installation).
3. Drain the coolant from the cooling system. Refer to Procedure: Drain/Fill Coolant and Bleed Cooling System (303-03B Engine Cooling - 2.2L Duratorq - Td4, General Procedures).
4. Raise the vehicle.
WARNING: Do not work on or under a vehicle that is only supported by a jack. Always place secure supports under the vehicle.
5.
Prepare to collect leaking coolant. A new O-ring needs to be installed.
6.
NOTE: Remove the O-ring and discard it.
8.
Installation
1. Connect the plug connector of the engine coolant temperature sensor (ECT).
2. Install the engine coolant temperature sensor (ECT).
CAUTION: A new O-ring must be installed.
3. Connect the heater outlet pipe.
4. Install the air filter assembly. Refer to Procedure: Air Filter (303-12A Intake air distribution and filtration - 3.2L NA - I6, Removal and installation).
5. Install motor protection. Refer to Procedure: Engine Cover - 2.2L Duratorq - Td4 (501-05 Interior trim, Removal and installation).
6. Fill and bleed the cooling system. Refer to Procedure: Drain/Fill Coolant and Bleed Cooling System (303-03B Engine Cooling - 2.2L Duratorq - Td4, General Procedures).
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