GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Safety Glasses Caution in the Preface section.

    Important: This procedure applies to all 'O-ring throughout the A/C system.

  1. Disassemble the A/C refrigerant components. Refer to the appropriate repair procedure.

  2. Object Number: 1955633  Size: SH

    Important: The O-ring seal (1) is a single use item and must be discarded after use.

    Important: Using a suitable tool, gently insert the end of the tool under the O-ring seal (1) and lift O-ring seal (1), evenly all the way around, off the A/C refrigerant component (2).

  3. Remove the O-ring seal (1) from the A/C refrigerant component (2).

  4. Object Number: 1955630  Size: SH
  5. Inspect the O-ring seal (1) for signs of damage.
  6. Inspect the A/C refrigerant component (2) for damage or burrs. Repair if necessary.
  7. Important: Cover any opening of the A/C system with a suitable cap or tape immediately, to prevent absorption of moisture from the atmosphere.

  8. Cap or tape the A/C refrigerant component (2).
  9. Discard the O-ring seal.

Installation Procedure


    Object Number: 1955630  Size: SH
  1. Inspect the NEW O-ring seal (1) for any sign or cracks, cuts, or damage. Replace if necessary.
  2. Remove the cap or tape from the A/C refrigerant component (2).
  3. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant component (2).
  4. Coat the NEW O-ring (1) with refrigerant oil.
  5. Carefully slide the NEW O-ring seal (1) onto the A/C refrigerant component.

  6. Object Number: 1951007  Size: SH
  7. The O-ring seal must be fully seated.
  8. Assemble the A/C components. Refer to the appropriate repair procedure.