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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 >> Air Conditioning (A/C) Low Pressure Switch Replacement >> Installation Procedure

Installation Procedure

  1. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.
  2. Install the new O-ring seal to the switch.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the A/C low pressure switch (1) to the accumulator (3).

    Tighten 

    Tighten the switch to 6 N.m (53 lb in).

    Fig 1: Installing Air Conditioning Low Pressure Switch
    G01645591Courtesy of GENERAL MOTORS CORP.
  4. Connect the electrical connector to the A/C low pressure switch.
  5. Leak test the fittings of the component using the J 39400-A. 
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