Heater Inlet Hose Replacement LY7

Tools Required

J 38185 Spring Hose Clamp Pliers

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Raise the vehicle.

Important: A mirror is needed to see the bolt, which is located next to the engine at the base of the head and at the top of the transmission bell house.

3. Remove the lower bolt from the heater pipe assembly at the thermostat assembly.
4. Lower the vehicle.
5. Remove the cover assembly to the engine intake manifold.
6. Remove the battery tray. Refer to Battery Tray Replacement .



7. Remove the lower bolt securing the battery tray to the panel assembly on the front air inlet housing.
8. Remove the nuts securing the panel assembly to the front of the dash.
9. Remove the panel assembly from the vehicle.



10. Using J 38185 slide the clamp back on the heater inlet hose.
11. Remove the inlet heater hose from the heater core.



12. Using J 38185 slide the clamp back on the heater outlet hose.
13. Remove the heater outlet hose from the heater core.
14. Remove the upper bolt of the heater pipe assembly at the thermostat assembly.
15. Remove the entire assembly from the vehicle.
16. Remove the heater inlet hose from the heater pipe assembly.

1. Install the heater inlet hose to the heater pipe assembly.
2. Using J 38185 slide the clamp back into the original position on the hose.
3. Position the entire assembly in the vehicle.

Notice: Refer to Fastener Notice in the Preface section.

4. Install the upper bolt of the heater pipe assembly at the thermostat assembly.

Tighten
Tighten the bolt to 10 N·m (7 lb ft).




5. Install the inlet heater inlet hose to the heater core.
6. Using J 38185 slide the clamp back into the original position on the hose.



7. Install the heater outlet hose to the heater core.
8. Using J 38185 slide the clamp back into the heater outlet hose.



9. Install the panel assembly for the front air inlet housing to the vehicle.
10. Install the lower bolt securing the battery tray to the panel assembly.

Tighten
Tighten the bolt to 6 N·m (53 lb in).

11. Install the nuts securing the panel assembly to the front of the dash.

Tighten
Tighten the nuts to 6 N·m (53 lb in).




12. Install the battery tray. Refer to Battery Tray Replacement .
13. Raise the vehicle.
14. Install the lower bolt to the heater pipe assembly at the thermostat assembly.

Tighten
Tighten the bolt to 10 N·m (7 lb ft).

15. Lower the vehicle.
16. Install the cover assembly to the engine intake manifold.
17. Fill the cooling system. Refer to Cooling System Draining and Filling .