GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure


    Object Number: 297225  Size: SH
  1. Disconnect the A/C refrigerant line.
  2. • For compression style fittings, use a back up wrench on the fitting (2) and loosen the fitting nut (1).
    • For banjo style fittings, remove the bolt retaining the banjo type fitting.
  3. Disconnect the A/C line from the A/C component.
  4. Cap or tape the A/C line and the A/C component to prevent system contamination.
  5. Discard the O-ring seals.

Installation Procedure

  1. Remove the cap or tape from the A/C line and the A/C component.
  2. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant line and the A/C refrigerant component.
  3. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.
  4. Important: 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 line.

  6. Object Number: 662315  Size: SH
  7. Fully seat the O-ring seal

  8. Object Number: 297225  Size: SH
  9. Connect the A/C line.
  10. • For compression style fittings, use a back up wrench on the fitting (2) and tighten the fitting nut (1) to specification.
    • For banjo style fittings, install the bolt retaining the banjo type fitting and tighten to specification.