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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 910 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (2.2L) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the refrigerant pressure sensor port on the evaporator tube.
  2. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.

    Important:  DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.

  3. Slide the new O-ring seal onto the A/C refrigerant pressure sensor port on the evaporator tube front until the unit is fully seated.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
    Fig 1: Installing A/C Refrigerant Pressure Sensor To Evaporator Tube
    G01466922Courtesy of GENERAL MOTORS CORP.
  4. Install the A/C refrigerant pressure sensor to the evaporator tube.

    Tighten 

    Tighten the A/C refrigerant pressure sensor to 4.8 N.m (42 Ib. in).

  5. Connect the A/C refrigerant pressure sensor electrical connector.
  6. Leak test the fittings of the component using the J 39400-A  .
    Fig 2: Connecting A/C Refrigerant Pressure Sensor Electrical Connector
    G01466923Courtesy of GENERAL MOTORS CORP.
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