GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure


    Object Number: 1547625  Size: SH
  1. Recover the refrigerant from the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging.
  2. Remove the A/C refrigerant valve (2).
  3. Remove and discard the O-ring seal (3).

Installation Procedure


    Object Number: 1547625  Size: SH

    Note:  DO NOT allow any of the mineral base 525 viscosity oil on the NEW O-ring to enter the refrigerant system.

  1. Lightly coat the NEW O-ring seal with mineral base 525 viscosity refrigerant oil.
  2. Install the O-ring seal (3) onto the valve if necessary.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the A/C refrigerant valve (2) and tighten to 11 N·m (98 lb in).
  5. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
  6. Leak test the fitting valve area using the J 39400-A .
  7. Install the service port cap (1).