High Pressure Regulator Coolant Inlet Hose Replacement Passenger/Cargo

Tools Required

J 39529 Heater Hose Pliers

1. Remove the bolt from coolant recovery reservoir.
2. Set aside the coolant recovery reservoir.
3. Partially drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling in the G/H Van Service Manual.



4. Remove the high pressure regulator (HPR) inlet hose (1) clamp from the tee fitting (7) using the J 39529 .
5. Disconnect the HPR inlet hose (1) from the tee fitting (7).



6. Remove the HPR coolant hose P-clamp bolts (3).
7. Remove the HPR inlet hose (1) clamp using the J 39529 .
8. Disconnect the HPR inlet hose (1) from the fitting.
9. Drain any remaining coolant from the hose into a suitable container.



10. Remove the underbody coolant hose P-clamp bolts (1-5) observing their location.
11. Pull the coolant hose out from under the underbody heat shield (3).

1. Route the coolant hose through the underbody heat shield (3).



2. Connect the HPR inlet hose and clamp to the fitting (1) using the J 39529 .

Notice: Refer to Fastener Notice in the Preface section.

3. Install the HPR hose P-clamps and mounting screws (3).

Tighten

•	Tighten the self-tapping mounting screw to 7 N·m (62 lb in).

•	Tighten the U-nut mounting screw to 10 N·m (89 lb in).




4. Attach the P-clamps and hoses to the underbody at their previously observed location.

Tighten
Tighten the P-clamp mounting screws to 4 N·m (35 lb in).




5. Connect the HPR inlet hose and clamp (1) to the tee fitting (7) using the J 39529 .



6. Position the coolant recovery reservoir and install the mounting bolt.

Tighten
Tighten the bolt to 11 N·m (97 lb in).

7. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling in the G/H Van Service Manual.
8. Verify that the system has no leaks.

High Pressure Regulator Coolant Inlet Hose Replacement Cutaway

Tools Required

J 39529 Heater Hose Pliers

1. Remove the bolt from coolant recovery reservoir.
2. Set aside the coolant recovery reservoir.
3. Partially drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling in the G/H Van Service Manual.



4. Remove the high pressure regulator (HPR) inlet hose (1) clamp from the tee fitting (7) using the J 39529 .
5. Disconnect the HPR inlet hose (1) from the tee fitting (7).



6. Remove the HPR coolant hose P-clamp bolts (3).
7. Remove the HPR inlet hose (1) clamp using the J 39529 .
8. Disconnect the HPR inlet hose (1) from the fitting.
9. Drain any remaining coolant from the hose into a suitable container.



10. Remove the underbody coolant hose P-clamp bolts (1-4) observing their location.
11. Remove the hose from the vehicle.

1. Connect the HPR inlet hose and clamp to the fitting (1) using the J 39529 .

Notice: Refer to Fastener Notice in the Preface section.

2. Install the HPR hose P-clamps and mounting screws (3).

Tighten

•	Tighten the mounting bolt to 10 N·m (89 lb in).

•	Tighten the mounting nut to 4 N·m (35 lb in).




3. Attach the P-clamps and hoses to the underbody at their previously observed location.

Tighten

•	Tighten the P-clamp mounting nuts to 4 N·m (35 lb in).

•	Tighten the self-tapping mounting screw to 7 N·m (62 lb in).




4. Connect the HPR inlet hose and clamp (1) to the tee fitting (7) using the J 39529 .



5. Position the coolant recovery reservoir and install the mounting bolt.

Tighten
Tighten the bolt to 11 N·m (97 lb in).

6. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling in the G/H Van Service Manual.
7. Verify that the system has no leaks.