GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging.

  2. Object Number: 718864  Size: SH

    Note: The nuts (4) and the ferrules (3) will remain on the evaporator tube. Do not try to remove.

  3. Remove the nuts (4) from the A/C refrigerant filter (1).
  4. Remove the A/C refrigerant filter.

Installation Procedure


    Object Number: 718864  Size: SH
  1. Coat the O-rings (2) with 525 viscosity refrigerant oil.
  2. Install the O-rings (2) to the evaporator tube.
  3. Install the A/C refrigerant filter with the flow arrow pointing towards the evaporator.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the nuts (4) to the A/C refrigerant filter (1).
  6. Tighten
    Tighten the nuts to 15 N·m (11 lb ft).

  7. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
  8. Leak test the fittings of the repaired or reinstalled component using the J 39400-A .