GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Aurora 🢒 Engine 🢒 Engine Mechanical - 4.0L 🢒 Oil Pan Replacement

Removal Procedure
  1. Remove the transmission. Refer to Transmission Replacement in Automatic Transmission.
  2. Drain the engine oil.

    3. Object Number: 52021 Size: SH
  3. Remove the exhaust crossover pipe (4) retaining bolts from the left exhaust manifold (5) flange and the exhaust manifold rear pipe (2).
  4. Remove the exhaust crossover pipe (4).

    5. Object Number: 62343 Size: SH
  5. Remove the oil pan bolts.
  6. Remove the oil pan.
  7. Remove and discard the gasket from the oil pan, if present.

Installation Procedure
  1. Reseal the oil pan. Refer to Oil Pan Installation .

    2. Object Number: 52021 Size: SH
  2. Install the exhaust crossover pipe (4).

    3. 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.

  3. Install the exhaust crossover retaining bolts into the left exhaust manifold (5) flange and the exhaust manifold rear pipe (5).

    4. Tighten
    Tighten the exhaust crossover retaining bolts to 25 N·m (18 lb ft).

  4. Install the transmission assembly. Refer to Transmission Replacement in Automatic Transmission.
  5. Refill the engine oil. Oil capacity is 6.65 liters (7 quarts) without a filter change and 7.1 liters (7.5 quarts) with an oil filter change.