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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1448 (HVAC Systems - General Servicing) >> Repair Instructions >> Air Conditioning (A/C) Low Pressure Switch Replacement >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Low Pressure Switch
    GM741190Courtesy of GENERAL MOTORS CORP.
  1. Install the new O-ring seal. Refer to O-Ring Replacement .
    2. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the A/C low pressure switch (2) to the accumulator (1).

    Tighten:  Tighten the A/C low pressure switch to 4.8 N.m (42 lb in).

  3. Connect the A/C low pressure switch electrical connector.
  4. Leak test the fittings of the components using the J 39400-A  . See Special Tools and Equipment .
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