High Pressure Safety Valve HVAC: Service and Repair

Compressor Pressure Relief Valve Replacement

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





Note:
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.

Installation Procedure

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

2. Lubricate the O-ring on the high pressure relief valve. Refer to Air Conditioning O-Ring Seal Replacement Air Conditioning O-Ring Seal Replacement.





Caution:
Refer to Fastener Caution Fastener Caution.

3. Install the high pressure relief valve and tighten to 8 Nm (70 lb in).

4. Lower the vehicle.

5. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.

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