Heater Inlet Hose Replacement (L18)

Heater Inlet Hose Replacement (L18)

Removal Procedure

1. Remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement Service and Repair in Body Front End.
2. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement Service and Repair in Engine Controls - 8.1L.
3. Drain the engine coolant. Refer to Cooling System Draining and Filling Cooling System Draining and Filling in Engine Cooling.
4. Back the inlet hose clamp off the heater core inlet pipe.
5. Disconnect the inlet hose from the heater core.




6. Remove the bolts (4) and (6) from the inlet pipe brackets.
7. Remove the nut (3) from the inlet pipe bracket.
8. Remove the heater inlet pipe from the engine.

Installation Procedure

1. Install the heater inlet pipe to the engine.

Notice: Refer to Fastener Notice in Cautions and Notices.

2. Install the nut (3) to the inlet pipe bracket.

Tighten the nut to 25 Nm (18 lb ft).




3. Install the bolts (4) and (6) to the inlet pipe brackets.

Tighten the bolts to 25 Nm (18 lb ft).

4. Connect the inlet hose to the heater core.
5. Install the clamp.
6. Fill the engine with coolant. Refer to Cooling System Draining and Filling Cooling System Draining and Filling in Engine Cooling.
7. Install the air cleaner. Refer to Air Cleaner Assembly Replacement Service and Repair in Engine Controls - 8.1L.
8. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement Service and Repair in Body Front End.