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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation And Air Conditioning >> Repair Instructions >> Compressor Pressure Relief Valve Install >> Installation Procedure

Installation Procedure

Tools Required 

J 43600  ACR 2000 Air Conditioning Service Center. See Special Tools and Equipment .

  1. Clean the valve seat area on the rear head.
  2. Lubricate the O-ring of the new pressure relief valve (5) and the O-ring assembly using new 525 viscosity refrigerant oil.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the new pressure relief valve (5).

    Tighten 

    Tighten the new valve to 9.0 N.m (6.1 lb ft).

    Fig 1: Installing Compressor Pressure Relief Valve
    G01645520Courtesy of GENERAL MOTORS CORP.
  4. Evacuate and recharge the system using the J 39500-B. 
  5. Leak test the system.
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