GM Service Manual Online
For 1990-2009 cars only

Perform the following steps in order to correctly repair a leak:

  1. Identify the leak.
  2. Trace the leak to the leak's source.
  3. Determine the cause of the leak.

For example, if the mating surface of a case component is damaged, you will not repair the leak by resealing the case component. The mating surface that is damaged must be repaired or replaced. Before you repair a transaxle oil leak, correct any conditions that may cause the leak. The following conditions may cause a transaxle oil leak:

Important: The Suzuki 5-speed manual transaxle does not use gaskets in order to seal major case components. Use GM P/N 12346240 or the equivalent as necessary.

    • An excessive fluid level
    • A plugged breather hole
    • Incorrectly torqued fasteners
    • Dirty fastener threads or damaged fastener threads
    • Warped flanges
    • Any mating surfaces that exhibit the following conditions:
       - Warping
       - Scratches
       - Burrs
       - Other damage
    • Insufficient amounts or excessive amounts of sealer
    • The component is cracked or porous
    • Incorrect sealant use
    • A damaged seal bore
    • A damaged seal or a worn seal
    • Drive axle surfaces that exhibit the following conditions:
       - Scratches
       - Nicks
       - Other damage
    • Excessive seal wear caused by a loose bearing or caused by a worn bearing