Tools Required

1. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
2. Remove the air filter housing assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls 4.6L .
3. Using the J 38185 , remove the clamp from the heater hose at the heater outlet pipe (4).
4. Remove the heater hose from the heater outlet pipe (4).



5. Remove the nut (5) from the heater outlet pipe (4).
6. Using the J 37097-A , remove the hose clamps from the hose on the thermostat housing and the surge tank hose.
7. Remove the surge tank hose from the heater outlet pipe (4).
8. Remove the heater outlet pipe (4) from the vehicle.

1. Install the adapter hose to the thermostat housing end of the heater outlet pipe (4).



2. Install the heater outlet pipe (4) to the thermostat housing and place the hold-down bracket over the stud.
3. Install the nut (5) to the stud and hand tighten.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the surge tank hose to the outlet coolant pipe (4).
5. Install the heater pipe outlet nut (5).

Tighten
Tighten the nut (5) to 25 N·m (18 lb ft).

6. Using the J 37097-A , install the hose to the thermostat housing and the surge tank hose.
7. Install the outlet heater hose to the heater outlet pipe (4).
8. Using the J 38185 , install the clamp to the heater hose at the heater outlet pipe (4).
9. Install the air filter housing assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls 4.6L.
10. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.