GM Service Manual Online
For 1990-2009 cars only

Locating Leaks - General Method

  1. Verify that the leak is transaxle fluid.
  2. Thoroughly clean the suspected leak area.
  3. Operate the vehicle for about 25 km (15 miles) or until the transaxle reaches normal operating temperature, 88°C (190°F).
  4. Park the vehicle over clean paper or cardboard.
  5. Turn the engine OFF. Inspect for fluid spots on the paper.
  6. Make the necessary repairs to correct the leak.