Air Conditioning Compressor Hose Replacement

Air Conditioning Compressor Hose Replacement (LS3, LS7)

Special Tools

J 39400-A - Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.

2. Remove the radiator support. Refer to Radiator Support Replacement Radiator Support Replacement.

Note:
Prior to removal, take note of the A/C compressor hose assembly routing and orientation between the compressor and condenser.

Cap or tape off the open A/C components immediately to prevent system contamination.





3. Remove the A/C compressor hose assembly bolt from the A/C condenser fitting.

4. Disconnect the A/C compressor hose assembly from the A/C condenser fitting.

5. Remove and discard the sealing washer.

6. Cap or tape off the A/C condenser fitting.





7. Disconnect and remove the A/C tube connector from the evaporator outlet tube and A/C compressor hose assembly. Refer to Air Conditioning Line/Tube Connector Removal/Replacement Air Conditioning Line/Tube Connector Removal/Replacement.





8. Disconnect the evaporator outlet tube from the A/C compressor hose assembly.

9. Cap or tape off the evaporator outlet tube.

10. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.

11. Remove the right front tire and wheel assembly from the vehicle. Refer to Tire and Wheel Removal and Installation Service and Repair.





12. For the 7.0L only, remove the compressor mounting bolts and nuts and lower the compressor. Refer to Air Conditioning Compressor Replacement Removal and Replacement.

13. Remove the A/C compressor hose assembly to A/C compressor retaining bolt.

14. Disconnect the A/C compressor hose assembly from the A/C compressor.

15. Remove and discard the sealing washers.

16. Cap or tape off the A/C compressor.

17. Remove the A/C compressor hose assembly from the vehicle.

Installation Procedure

1. Install the A/C compressor hose assembly to the vehicle.





2. Remove cap or tape from the A/C compressor.

3. Install new sealing washers onto the compressor hose assembly. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.

4. Connect the A/C compressor hose assembly to the A/C compressor.

Caution:
Refer to Fastener Caution Fastener Caution.

5. Install the A/C compressor hose assembly to A/C compressor retaining bolt and tighten to 22 Nm (16 lb ft).

6. For the 7.0L only, reposition the compressor and install the bolts and nuts. Refer to Air Conditioning Compressor Replacement Removal and Replacement.

7. Install the right front tire and wheel assembly to the vehicle. Refer to Tire and Wheel Removal and Installation Service and Repair.

8. Lower the vehicle.





9. Remove cap or tape from the evaporator outlet tube.

10. Install a new O-rings onto the evaporator outlet tube. Refer to Air Conditioning O-Ring Seal Replacement Air Conditioning O-Ring Seal Replacement.

11. Connect the evaporator outlet tube to the A/C compressor hose assembly.

12. Install the A/C tube connector to the evaporator outlet tube and A/C compressor hose assembly. Refer to Air Conditioning Line/Tube Connector Removal/Replacement Air Conditioning Line/Tube Connector Removal/Replacement.





13. Remove cap or tape from the A/C condenser fitting.

14. Install a new sealing washer onto the compressor hose assembly. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.

15. Connect the A/C compressor hose assembly to the A/C condenser fitting.

16. Install the A/C compressor hose assembly bolt to the A/C condenser fitting and tighten to 22 Nm (16 lb ft).

17. Install the radiator support. Refer to Radiator Support Replacement Radiator Support Replacement.

18. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.

19. Leak test the fittings of the component using J 39400-A - Halogen Leak Detector.