GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2004 🢒 Alero 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T40-E/4T45-E 🢒 Oil Pan Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

    2. Object Number: 104466 Size: SH
  2. Loosen the oil pan bolts.
  3. Drain the oil. Use a suitable container to catch the transmission fluid.
  4. Remove the oil pan attaching bolts.

    5. Object Number: 104468 Size: SH
  5. Remove the oil pan.

    6. Object Number: 104471 Size: SH
  6. Remove the oil pan gasket.

Installation Procedure
  1. Clean and inspect the oil pan for dents or damage. Dry the oil pan before installation.

    2. Object Number: 104471 Size: SH
  2. Install the oil pan gasket. Use a new gasket if the sealing ribs are damaged.

    3. Object Number: 104468 Size: SH
  3. Install the oil pan. Replace the bottom pan if damaged.

    4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 104466 Size: SH
  4. Install the oil pan attaching bolts.

    5. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  5. Lower the vehicle.
  6. Check the pan for leaks. Refill the transmission to the proper level. Refer to Fluid Capacity Specifications .
  7. Recheck the fluid level. Refer to Transmission Fluid Check .
  8. Inspect the oil pan gasket for leaks.