Air Conditioning Compressor Hose Replacement LS4

Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .



3. Remove the A/C compressor hose nut from the compressor hose block to the evaporator tube.
4. Remove the A/C compressor hose from the evaporator tube.



5. Remove the A/C compressor hose nut from the condenser.
6. Disconnect the A/C compressor hose from the condenser.



7. Remove the A/C compressor hose nut from the A/C compressor.
8. Remove the A/C compressor hose from the A/C compressor.
9. Remove and discard all sealing washers.

1. Install new sealing washers onto the A/C compressor hose assembly. Refer to Sealing Washer Replacement .



2. Install the A/C compressor hose to the A/C compressor.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the A/C compressor hose nut to the A/C compressor.

Tighten
Tighten the nut to 17 N·m (12.5 lb ft).




4. Install the A/C compressor hose to the condenser.

Important: Use a 20mm wrench or pliers to hold the A/C condenser block fitting, this will prevent the A/C line from twisting while torquing the A/C line nut.

5. Install the A/C compressor hose nut to the condenser.

Tighten
Tighten the nut to 17 N·m (12.5 lb ft).




6. Install the A/C compressor hose to the evaporator tube.
7. Install the A/C compressor hose to evaporator tube nut.

Tighten
Tighten the nut to 17 N·m (12.5 lb ft).

8. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
9. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
10. Leak test the fittings of the component using J 39400-A .

Air Conditioning Compressor Hose Replacement L26, L32

Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .



3. Remove the A/C compressor hose nut from the condenser.
4. Disconnect the A/C compressor hose from the condenser.



5. Remove the A/C compressor hose nut from the evaporator tube.
6. Remove the A/C compressor hose from the evaporator tube.



7. Remove the A/C compressor hose nut from the A/C compressor.
8. Remove the A/C compressor hose from the A/C compressor.
9. Remove and discard all sealing washers.

1. Install new sealing washers onto the A/C compressor hose assembly. Refer to Sealing Washer Replacement .
2. Install the A/C compressor hose to the A/C compressor.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the A/C compressor hose nut to the A/C compressor.

Tighten
Tighten the nut to 17 N·m (12.5 lb ft).

4. Install new seals washers to the A/C compressor hose assembly and evaporator tube. Refer to Sealing Washer Replacement .



5. Install the A/C compressor hose to the evaporator tube.
6. Install the A/C compressor hose to evaporator tube nut.

Tighten
Tighten the nut to 17 N·m (12.5 lb ft).




7. Install the A/C compressor hose to the condenser.

Important: Use a 20mm wrench or pliers to hold the A/C condenser block fitting, this will prevent the A/C line from twisting while torquing the A/C line nut.

8. Install the A/C compressor hose nut to the condenser.

Tighten
Tighten the nut to 17 N·m (12.5 lb ft).

9. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
10. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
11. Leak test the fittings of the component using J 39400-A .