GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Cutlass 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T40-E 🢒 Oil Pan Replacement

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

    2. Object Number: 183379 Size: SH
  2. Loosen the pan bolts and drain the oil.
  3. Remove the pan attaching bolts.
  4. Remove the pan (2) and the gasket (1).

Installation Procedure

    Object Number: 183379 Size: SH

    Important: The oil pan gasket may be reused, unless the sealing ribs are damaged. If damaged, use a new gasket.

  1. Install the pan (2) and the gasket (1).

    2. 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.

  2. Install the new pan attaching bolts.

    3. Tighten
    Tighten the pan bolts to 14 N·m (124 lb in).

  3. Lower the vehicle.
  4. Refill the transmission to the proper level with DEXRON® III oil.
  5. Inspect the oil pan gasket (1) for leaks.
  6. Check the fluid level.