Tools Required

J 39529 Heater Hose Pliers

1. Partially drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
2. Remove the air cleaner, if necessary. Refer to the appropriate procedure in Engine Controls:

•	Air Cleaner Assembly Replacement 4.3L

•	Air Cleaner Assembly Replacement 5.0/5.7L

•	Air Cleaner Assembly Replacement 6.5L Diesel

3. Remove the coolant recovery reservoir or the surge tank. Refer to Coolant Recovery Reservoir Replacement or Radiator Surge Tank Replacement in Engine Cooling.



4. Remove the hose clamps using the J 39529 .



5. Remove the hose support clamps, the brackets, or the retainers as necessary.
6. Remove the heater hose from the vehicle.

1. Install the heater hose to the vehicle.
2. Install the hose support clamps, the brackets, or the retainers as necessary.



3. Install the hose clamps using the J 39529 .
4. Install the coolant recovery reservoir or the surge tank. Refer to Refer to Coolant Recovery Reservoir Replacement or Radiator Surge Tank Replacement in Engine Cooling.
5. Install the air cleaner, if necessary. Refer to the appropriate procedure in Engine Controls:

•	Air Cleaner Assembly Replacement 4.3L

•	Air Cleaner Assembly Replacement 5.0/5.7L

•	Air Cleaner Assembly Replacement 6.5L Diesel

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