GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Safari - 2WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Compressor Pressure Relief Valve Replacement

Removal Procedure
  1. Remove the engine cover. Refer to Engine Cover Replacement in Interior Trim.
  2. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .
  3. Clean the valve seat area on the rear head.

    4. Object Number: 573960 Size: SH
  4. Remove the pressure relief valve (1).

Installation Procedure
  1. Lubricate the O-ring of the new pressure relief valve (1) using new 525 viscosity refrigerant oil.

    2. Notice: Refer to Component Fastener Tightening Notice in the Preface section.


    Object Number: 573960 Size: SH
  2. Install the pressure relief valve (1).

    3. Tighten
    The pressure relief valve to 9 N·m (80 lb in).

  3. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  4. Leak test the fitting(s) of the repaired or reinstalled component using the J 39400 .
  5. Install the engine cover. Refer to Engine Cover Replacement in Interior Trim.