GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 102505  Size: SH
  1. Raise and support the vehicle.
  2. Place a drain pan under the transmission oil pan.
  3. Remove all of the oil pan bolts except for the rear bolts.
  4. Loosen the rear oil pan bolts approximately 4 turns.
  5. Notice: Do not damage the transmission case at the oil pan sealing surfaces.

  6. Lightly pry down the front of the oil pan and allow the oil to drain.
  7. Remove the remaining oil pan bolts.
  8. Remove the oil pan.
  9. Remove the gasket.
  10. Remove the magnet.
  11. Remove the oil filter.
  12. Remove the filter neck seal.
  13. Transmission oil pan gasket (29) is reusable.
  14. Inspect the gasket and replace as needed.

  15. Clean the transmission case and the oil pan gasket surfaces with solvent.
  16. Air dry the transmission case and surfaces.

Installation Procedure


    Object Number: 102505  Size: SH
  1. Install the filter neck seal.
  2. Install the oil filter.
  3. Install the oil pan gasket to the pan.
  4. Install the magnet into the bottom of the pan.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Install the oil pan using all seventeen oil pan bolts.
  7. Tighten
    Tighten the oil pan bolts to 11 N·m (97 lb in).

  8. Install Dexron® III Automatic Transmission Fluid. Refer to Fluid Capacity Specifications .
  9. Lower the vehicle.
  10. Check the oil pan gasket for leaks.