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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 Replacement >> Installation Procedure

Installation Procedure

  1. Lubricate the O-ring of the new pressure relief valve (1) using new 525 viscosity refrigerant oil.
    NOTE: Refer to COMPONENT FASTENER TIGHTENING NOTICE in Cautions and Notices.
  2. Install the pressure relief valve (1).

    Tighten 

    Tighten the pressure relief valve to 9 N.m (80 lb in).

    Fig 1: Installing Compressor Pressure Relief Valve
    G01645547Courtesy of GENERAL MOTORS CORP.
  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 in Interior Trim.
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