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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Air Conditioning O-Ring Seal Replacement >> Installation Procedure

Installation Procedure

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  1. Inspect the new O-ring seal for any sign of cracks, cuts or damage. Replace if necessary.
  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. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.
    NOTE: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the new O-ring seal to enter the refrigerant system.
  5. Carefully slide the new O-ring seal onto the A/C refrigerant component.
    NOTE: DO NOT reuse O-ring seals.
  6. The O-ring seal (1) must be fully seated.
    Fig 1: A/C Refrigerant Component O-ring
    GM2026976Courtesy of GENERAL MOTORS COMPANY
  7. Assemble the A/C components.
  8. Using a lint-free clean, dry cloth, clean the sealing surfaces of the A/C refrigerant components.
    Fig 2: Identifying Proper Seating Of A/C Refrigerant O-Ring
    GM662315Courtesy of GENERAL MOTORS COMPANY
  9. Carefully install the NEW sealing washer (1) onto the A/C refrigerant component.

    The sealing washer (1) must completely bottom against the surface of the fitting.

  10. Assemble the remaining A/C refrigerant components. Refer to the appropriate repair procedure.
    NOTE: After tightening the A/C components, there should be a slight sealing gap of approximately 1.2 mm (3/64 in) between the A/C line and the A/C component.
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