GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2007 🢒 Isuzu H-Series 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Compressor Pressure Relief Valve Replacement

Compressor Pressure Relief Valve Replacement HU6 Only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  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

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

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

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

    3. Tighten
    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-A .
  5. Install the engine cover. Refer to Engine Cover Replacement .