Air Conditioning Compressor Hose Replacement

Air Conditioning Compressor Hose Replacement (LL8) (4.2L)

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).




2. Remove the compressor hose assembly nut (3).
3. Remove the compressor hose assembly from the compressor (4).
4. Remove the sealing washers.
5. Remove the compressor suction hose nut from the accumulator.
6. Remove the compressor suction hose from the accumulator.
7. Remove the O-ring seal.
8. Remove the bolt from the lift bracket.
9. Remove the nut from the engine stud.




10. Remove the compressor discharge hose (2) from the condenser (4).
11. Remove the nut from compressor hose connection in driver wheel opening.
12. Remove the O-ring seals.
13. Cap or plug all of the open connections.

Installation Procedure




1. Install new O-ring seals. Refer to O-Ring Replacement (O-Ring Replacement).
2. Install the compressor discharge hose (2) to the condenser (4).

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the compressor discharge hose nut and tighten to 28 Nm (21 lb ft).
4. Install the compressor hose to the connector through the driver wheel opening.
5. Install the nut and tighten to 48 Nm (35 lb ft).
6. Install the compressor suction hose to the stud on the engine.
7. Install the nut and tighten to 48 Nm (35 lb ft).
8. Install the compressor suction hose to the engine lift bracket.
9. Install the bolt and tighten to 48 Nm (35 lb ft).
10. Connect the compressor suction hose (1) to the accumulator.
11. Install the compressor suction hose nut to the accumulator and tighten to 48 Nm (35 lb ft).
12. Install the sealing washers. Refer to Sealing Washer Replacement (Sealing Washer Replacement).




13. Connect the compressor hose assembly hose to the compressor (4).
14. Install the compressor hose assembly washers.
15. Install the retaining nut (3) and tighten to 33 Nm (24 lb ft).
16. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
17. Leak test the fittings of the components using the J 39400-A .