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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation, And Air Conditioning >> Repair Instructions >> Air Conditioning O-Ring Seal Replacement >> Installation Procedure

Installation Procedure

  1. Inspect the new O-ring seal for any sign of cracks, cuts, or damage.
  2. Remove the cap or tape from the A/C refrigerant components.
  3. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant components.
    4. NOTE:

    Use only the recommended refrigerant oil or damage to the A/C system could occur.

  4. Lightly coat the new O-ring seal with the recommended refrigerant oil. Adhesives, Fluids, Lubricants, and Sealers 
    5. NOTE:

    DO NOT reuse O-ring seals.

  5. Carefully slide the NEW O-ring seal (1) onto the A/C refrigerant component.
    6. Fig 1: Identifying Good & Bad Sealing Washer Positions
    GM818438Courtesy of GENERAL MOTORS COMPANY
  6. The O-ring seal (1) must be fully seated.
  7. Assemble the A/C components.

    Refer to the appropriate repair procedure.

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