Hose/Line HVAC: Service and Repair

Hose and Pipe

REMOVAL

CAUTION:
- When disconnecting/connecting hoses, do not apply an excessive force to them. After installing, check that no torsion or excessive tension applied to the hoses.
- Seal the disconnected hose with a plug or vinyl tape to prevent foreign matter from entering.

1. FRONT
1. Disconnect the ground cable from battery.
2. Using the refrigerant recovery system, discharge refrigerant.
3. Remove the evaporator unit mounting bolt (A) and low-pressure hose bracket bolt (B).
4. Remove the low-pressure hose attaching bolts (C).
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 bolt (D).
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 pipe attaching bolt (E).
13. Remove the high-pressure tube from vehicle.






2. REAR
1. Disconnect the ground cable from battery.
2. Using the refrigerant recovery system, discharge refrigerant.
3. Remove the sheet and floor mat.
4. Remove the ECM bracket.
5. Remove the quick connectors (A and B).
ST REMOVER PS 73499XA01A
ST REMOVER PD 73499XA00A

NOTE: Description for handling the special tool

1. Face collar side (A) of the quick connector (1) to the remover (2), and set lock part (B) on the stopper side (C) of the remover.






2. Insert the remover.






Do not bend the needle (4) in the remover.






3. With the pipe secured, press the label part (D) of the remover with a thumb. Connector is unlocked and the quick connector opens.









4. Pull the remover (2) and separate the pipe (3) from the quick connector (1).






5. Pull up the stopper (C) and remove the remover (2) and quick connector (1) from the pipe.






6. Disconnect the quick connector (1) from the remover (2).






6. Remove the pipe bracket.
7. Remove the front pipe and rear pipe connecting bolts (C).
8. Remove the connecting bolts (D) of the rear cooler unit.
9. Remove the front pipe (E) and rear pipe (F).






INSTALLATION

CAUTION:
- When disconnecting or connecting the hoses, do not apply excessive force. After installing, check that no torsion or excessive tension applied to the hoses.
- Seal the disconnected hose with a plug or vinyl tape to prevent foreign matter from entering.

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

Tightening torque:

AIR CONDITIONING UNIT

Front
T1: 7.5 N.m (0.76 kgf-m, 5.5 ft-lb)
T2: 10 N.m (1.0 kgf-m, 7.4 ft-lb)
T3: 5 N.m (0.5 kgf-m, 3.7 ft-lb)

Rear
Tightening torque:
T: 7.5 N.m (0.76 kgf-m, 5.5 ft-lb)