Heater Inlet Hose Replacement L18

Tools Required

J 43181 Quick Connect Connector Removal Tool

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the air intake tube.
3. Remove the heater and surge tank hose from the mounting clip.



4. Using the J 43181 disconnect the heater hose from the heater core inlet.

4.1.	Install the J 43181 to the heater core pipe.

4.2.	Close the tool around the heater core pipe.

4.3.	Firmly pull the tool into the quick connect end of the heater hose.

4.4.	Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.




5. Remove the inlet heater hose (1) from the engine coolant inlet fitting.
6. Remove the inlet heater hose.

1. Install the inlet heater hose.



2. Install the inlet heater hose (1) to the engine coolant inlet fitting.



3. Connect the heater and surge tank hose to the heater core.

Firmly push the quick connect onto the heater core pipe until you hear an audible click.

4. Install the heater and surge tank hose to the mounting clip.
5. Install the air intake tube.
6. Fill the cooling system. Refer to Cooling System Draining and Filling .

Heater Inlet Hose Replacement LB7

Tools Required

J 43181 Quick Connect Connector Removal Tool

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the air intake tube.
3. Remove the heater and surge tank hose from the mounting clip.



4. Using the J 43181 disconnect the heater hose from the heater core inlet.

4.1.	Install the J 43181 to the heater core pipe.

4.2.	Close the tool around the heater core pipe.

4.3.	Firmly pull the tool into the quick connect end of the heater hose.

4.4.	Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.




5. Reposition the inlet heater hose clamp from the engine coolant outlet.
6. Remove the inlet heater hose (1) from the engine coolant outlet.
7. Remove the auxiliary inlet heater hose if equipped.
8. Remove the inlet heater hose.

1. Install the heater hose.
2. Connect the auxiliary inlet heater hose if equipped.



3. Install the inlet heater hose (1) to the engine coolant outlet.
4. Reposition the inlet heater hose clamp to the engine coolant outlet.



5. Connect the heater and surge tank hoses to the heater core.

Firmly push the quick connect onto the heater core pipe until you hear an audible click.

6. Install the heater and surge tank hose to the mounting clip.
7. Install the air intake tube.
8. Fill the cooling system. Refer to Cooling System Draining and Filling .

Heater Inlet Hose Replacement W/ HP2 Front

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Loosen the air cleaner outlet duct clamps at the following locations:

•	Throttle body

•	Mass airflow (MAF)/intake air temperature (IAT) sensor

3. Remove the radiator inlet hose clip from the outlet duct.
4. Remove the air cleaner outlet duct.



5. Reposition the inlet heater hose clamp from the engine.
6. Remove the inlet heater hose from the engine.



7. Reposition the inlet heater hose clamp (4) from the auxiliary water pump (1).
8. Remove the inlet heater hose (6) from the auxiliary water pump (1).

1. Install the inlet heater hose (6) to the auxiliary water pump (1).
2. Position the inlet heater hose clamp (4) to the auxiliary water pump (1).



3. Install the inlet heater hose to the engine.
4. Position the inlet heater hose clamp to the engine.




Important: Align the arrow at the throttle body end of the duct with the throttle body attaching stud.

5. Install the air cleaner outlet duct.
6. Install the radiator inlet hose clip to the outlet duct.

Notice: Refer to Fastener Notice in the Preface section.

7. Tighten the air cleaner outlet duct clamps at the following locations:

•	Throttle body

•	MAF/IAT sensor

Tighten
Tighten the screws to 7 N·m (62 lb in).

8. Fill the cooling system. Refer to Cooling System Draining and Filling .

Heater Inlet Hose Replacement W/ HP2 Rear

Tools Required

J 43181 Quick Connect Connector Removal Tool

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Using the J 43181 disconnect the heater hose from the heater core inlet.

2.1.	Install the J 43181 to the heater core pipe.

2.2.	Close the tool around the heater core pipe.

2.3.	Firmly pull the tool into the quick connect end of the heater hose.

2.4.	Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.




3. Reposition the inlet heater hose clamp (2) from the auxiliary water pump (1).
4. Remove the inlet heater hose (3) from the auxiliary water pump (1).

1. Install the inlet heater hose (3) to the auxiliary water pump (1).
2. Position the inlet heater hose clamp (2) to the auxiliary water pump (1).



3. Connect the inlet heater hose to the heater core.
4. Firmly push the quick connect onto the heater core pipe until you hear an audible click.
5. Fill the cooling system. Refer to Cooling System Draining and Filling .