Air Conditioning Compressor Hose Replacement for Buick Park Avenue 2000

Tools Required

J 39500-B A/C Refrigerant Recovery, Recycling and Recharging (ACR4) System

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
3. Remove the evaporator A/C compressor hose clip.



4. Remove the A/C compressor hose from the accumulator.



5. Disconnect the A/C hose retaining clip (1) at the rail.



6. Remove the A/C compressor hose from the condenser.



7. Disconnect the electrical connector from the A/C pressure sensor.
8. Remove the nut that attaches the A/C compressor hose to the A/C compressor.
9. Remove the A/C compressor hose from the vehicle.

Tools Required

J 39400 Electronic Halogen Leak Detector

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

Important: Inspect the seal washers for damage before reinstalling the A/C lines and hoses.

If any damage is noted during inspection, the suspect seal must be replaced.
Flat washer type seals do not require lubrication.

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.

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

Tighten
Tighten the nut to 30 N·m (22 lb ft).

3. Connect the electrical connector to the A/C pressure switch.



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

Tighten
Tighten the condenser connection to 24 N·m (18 lb ft).

5. Install the A/C compressor hose into the clip on the rail and fasten.

Important: Inspect the seal washers for damage before reinstalling the A/C lines and hoses.

If any damage is noted during inspection, the suspect seal must be replaced.
Flat washer type seals do not require lubrication.



6. Install the A/C compressor hose to the accumulator.

Tighten
Tighten the accumulator connection to 24 N·m (18 lb ft).




7. Install the upper A/C compressor hose clip.
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
9. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
10. Test the A/C system for leaks using the J 39400 . Refer to Leak Testing .