Hose/Line HVAC: Service and Repair

Hose and Tube

REMOVAL

CAUTION:
- When disconnecting/connecting hoses, do not apply an excessive force to them. Confirm that no torsion and excessive tension is charged after installing.
- Seal the disconnected hose with a plug or vinyl tape to prevent dirt from entering.

1. Disconnect the ground cable from the battery.
2. Using the refrigerant recovery system, discharge refrigerant.
3. Remove the evaporator unit attaching bolts (A).
4. Remove the low-pressure hose attaching bolts (B).
5. Disconnect the low-pressure hose from evaporator unit.
6. Disconnect the low-pressure hose from compressor.
7. Remove the low-pressure hose from vehicle.
8. Remove the high-pressure hose attaching bolts (C).
9. Disconnect the high-pressure hose from compressor.
10. Disconnect the high-pressure hose from condenser.
11. Remove the high-pressure hose from vehicle.
12. Remove the high-pressure tube attaching bolt (D).
13. Remove the high-pressure tube from vehicle.






INSTALLATION

CAUTION:
- When disconnecting/connecting hoses, do not apply an excessive force to them. Confirm that no torsion and excessive tension is charged after installing.
- Seal the disconnected hose with a plug or vinyl tape to prevent dirt from entering.
- Replace the O-rings on the hoses or pipes with new parts, and then apply compressor oil.

1. Install in the reverse order of removal.
2. Charge refrigerant.

Tightening torque:

AIR CONDITIONING UNIT

Tightening torque: N.m (kgf.m, ft.lb)

T1: 7.4 (0.75, 5.4)

T2: 15 (1.5, 10.8)