Heater Inlet Hose Replacement L18

1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.



2. Remove the inlet hose at the fender clip.
3. Remove the inlet hose clamp (2) from the heater core.
4. Remove the inlet hose from the heater core.
5. Remove the hose clamp (2) at the intake manifold fitting (3).
6. Remove the inlet hose from the intake manifold fitting.

1. Install the inlet hose to the intake manifold fitting (3).
2. Install the inlet hose clamp (2) to the intake manifold fitting.
3. Install the inlet hose to the heater core.
4. Install the inlet hose clamp (2) to the heater core.
5. Install the inlet hose to the fender clip.
6. Fill the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.

Heater Inlet Hose Replacement L65

Tools Required

J 38723 Heater Line Quick Connect Separator

1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.



2. Remove the inlet hose (1) from the generator bracket.
3. Remove the inlet hose mounting nuts.
4. Loosen the inlet hose clamp at the heater core enough in order to slip the clamp away from the fitting on the inlet hose.
5. Remove the inlet hose clamp at the heater core.
6. Disconnect the inlet hose from the heater core.



7. Push the inlet hose (5) into the connector (1).
8. Insert J 38723 into the connector in order to release the locking tabs (2).
9. Pull the retainer (4) and the inlet hose from the heater inlet connector.
10. Inspect the O-ring sealing surface on the inlet hose.

1. Push the inlet hose (5) into the connector (1) until the retainer tabs (3) lock.
2. Pull back on the inlet hose in order to verify for the proper engagement.



3. Install the inlet hose (1) to the heater core.
4. Install the inlet hose clamp.

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.

5. Install the inlet hose screw.

Tighten
Tighten the screw to 30 N·m (22 lb ft).

6. Fill the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.