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).
3. Remove the right front wheel and tire from the vehicle. Refer to Tire and Wheel Removal and Installation (Service and Repair).




4. Disconnect the RH ESC position sensor harness connector.




5. Disconnect the ESC sensor link from the control arm link stud.
6. Remove the ESC position sensor mounting bolt.
7. Remove the ESC position sensor from the vehicle.
8. Disconnect the front RH ABS electrical connector from the engine cradle and reposition aside.





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

9. Remove the high pressure relief valve.
10. Cap or tape the A/C compressor.

Installation Procedure

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





Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the high pressure relief valve and tighten to 8 Nm (70 lb in).
3. Connect the front RH ABS electrical connector to the engine cradle.
4. Install the ESC position sensor to the vehicle.
5. Install the ESC position sensor mounting bolt and tighten to 3 Nm (26 lb in).




6. Connect the ESC sensor link to the control arm link stud.




7. Connect the RH ESC position sensor harness connector.
8. Install the right front wheel and tire to the vehicle. Refer to Tire and Wheel Removal and Installation (Service and Repair).
9. Lower the vehicle.
10. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
11. Leak test the fittings of the component using J 39400-A .