GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Oil Pan Replacement

Removal Procedure

    Object Number: 785352 Size: SH
  1. Remove the engine splash shield. Refer to Engine Splash Shield Replacement.
  2. Remove the engine front cover. Refer to Engine Front Cover Replacement.
  3. Remove the engine mount lower nuts.

    4. Object Number: 1978438 Size: SH

    Note: Do NOT disconnect the A/C pipes and/or hoses.

  4. Remove the A/C compressor bracket bolts and reposition aside. Refer to Air Conditioning Compressor Replacement.
  5. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement.
  6. Remove the transmission oil cooler pipe retainer from the engine left side.
  7. Remove the radiator outlet hose bracket bolt (1).
  8. Remove the radiator outlet hose bracket (2).
  9. Install the engine support fixture. Refer to Engine Support Fixture.
  10. Tighten the support fixture wing nuts in order to provide clearance for the oil pan.
  11. Remove the front differential carrier, if equipped. Refer to Differential Carrier Assembly Replacement.

    12. Object Number: 1392416 Size: SH
  12. Remove the oil pan. Refer to Oil Pan Removal.
  13. Perform the following steps as necessary.
    14. • Disassemble the oil pan. Refer to Oil Pan Disassemble.
    • Clean and inspect the oil pan. Refer to Oil Pan Cleaning and Inspection.

Installation Procedure

    Object Number: 1392416 Size: SH
  1. Assemble the oil pan as necessary. Refer to Oil Pan Assemble.
  2. Install the oil pan. Refer to Oil Pan Installation.
  3. Install the front differential carrier, if equipped. Refer to Differential Carrier Assembly Replacement.
  4. Loosen the engine support fixture wing nuts in order to lower the engine and engage the engine mounts to the frame.

    5. Object Number: 1978438 Size: SH
  5. Position the radiator outlet hose bracket (2).

    6. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the radiator outlet hose bracket bolt (1) and tighten to 25 N·m (18 lb ft).
  7. Remove the engine support fixture. Refer to Engine Support Fixture.
  8. Remove the transmission oil cooler pipe retainer from the engine left side.
  9. Fill the engine with new engine oil. Refer to Engine Oil and Oil Filter Replacement.
  10. Install the A/C compressor bracket with the A/C compressor. Refer to Air Conditioning Compressor Replacement.

    11. Object Number: 785352 Size: SH
  11. Install the engine mount lower nuts. Refer to Secondary Camshaft Drive Chain Guide Replacement - Right Side and Engine Mount Replacement - Right Side.
  12. Install the engine front cover. Refer to Engine Front Cover Replacement.
  13. Install the engine splash shield. Refer to Engine Splash Shield Replacement.