For 1990-2009 cars

## Heater Inlet Hose Replacement L18

### Removal Procedure

1. Remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
2. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls - 8.1L.
3. Drain the engine coolant. Refer to 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: 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.

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

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

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

Tighten
Tighten the bolts to 25 N·m (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 in Engine Cooling.
7. Install the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls - 8.1L.
8. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.

## Heater Inlet Hose Replacement LG5

### Removal Procedure

1. Remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
2. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
3. Disconnect the hose clamps.
4. Disconnect the inlet hose from the heater core.
5. Disconnect the inlet hose from the coolant valve fitting.
6. Disconnect the coolant valve inlet hose from the engine block.
7. Disconnect the hose outlet from the engine block.

### Installation Procedure

1. Connect the hose to the engine block.
2. Connect the hose to the coolant valve inlet.
3. Connect the inlet hose to the coolant valve fitting.
4. Connect the inlet hose to the heater core.
5. Connect the hose clamps.
6. Add the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
7. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.