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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 866 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. 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 evaporator inlet tube fitting.

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

  2. Lightly coat the O-ring seal with mineral base 525 viscosity refrigerant oil.
  3. Install the A/C refrigerant pressure sensor to the evaporator inlet tube.

    Tighten 

    Tighten the sensor to 5 N.m (44 lb in).

  4. Connect the A/C refrigerant pressure sensor electrical connector.
  5. Leak test the fittings of the component using J 39400-A. 
    Fig 1: Installing A/C Refrigerant Pressure Sensor Electrical Connector
    G01498878Courtesy of GENERAL MOTORS CORP.
  6. Install the air baffle.
  7. Install the air baffle bolts.

    Tighten 

    Tighten the bolts to 20 N.m (15 lb ft).

  8. Lower the vehicle.
    Fig 2: Installing Air Baffle
    G01498879Courtesy of GENERAL MOTORS CORP.
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