GM Service Manual Online
For 1990-2009 cars only

General Method

  1. Verify that the material leaking is transaxle fluid.
  2. Thoroughly clean the suspected leak area.
  3. Allow the transaxle to reach the normal operating temperature of 176-194°F (80-90°C).
  4. Park the vehicle over a clean paper or a clean cardboard.
  5. Turn the engine OFF and look for fluid spots on the paper.
  6. Make the necessary repairs to correct that leak.

Powder Method

  1. Thoroughly clean the suspected leak area.
  2. Apply an aerosol type powder, such as foot powder, to the suspected leak area.
  3. Allow the transaxle to reach the normal operating temperature of 176-194°F (80-90°C).
  4. Turn the engine OFF.
  5. Inspect the suspected leak area and trace the leak path through the powder to find the source of the leak.
  6. Make the necessary repairs to correct the leak. Once the leak point is found, the source of the leak must be determined and repaired.