GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2004 🢒 Seville 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Oil Pan Replacement

Removal Procedure
  1. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  2. Remove the front exhaust manifold pipe. Refer to Exhaust Manifold Front Pipe Replacement in Engine Exhaust.

    3. Object Number: 551033 Size: SH
  3. Disconnect the electrical connector (2) from the engine oil level sensor (1).
  4. Remove the engine oil level sensor (1) from the oil pan.

    5. Object Number: 204583 Size: SH
  5. Remove the oil pan bolts.
  6. Remove the oil pan and discard the gasket, if present.
  7. Clean and inspect the oil pan. Refer to Oil Pan Cleaning and Inspection in Engine Mechanical - 4.6 L Unit Repair.

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

    2. Object Number: 551033 Size: SH

    Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

  2. Install the engine oil level sensor (1) into the oil pan.

    3. Tighten
    Tighten the engine oil level sensor to 20 N·m (15 lb ft).

  3. Connect the electrical connector (2) to the engine oil level sensor (1).
  4. Install the front exhaust manifold pipe. Refer to Exhaust Manifold Front Pipe Replacement in Engine Exhaust.
  5. Fill the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  6. Inspect for oil leaks after engine start up.