Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .




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

3. Remove the high pressure relief valve.
4. Cap or tape the A/C compressor.

1. Remove the cap or tape from the A/C compressor.
2. Lubricate the O-ring on the high pressure relief valve. Refer to O-Ring Replacement .




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 high pressure relief valve.

Tighten
Tighten the valve to 8 N·m (70 lb in).

4. Lower the vehicle.
5. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
6. Leak test the fittings of the component using J 39400-A .