GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 Seville 🢒 Engine 🢒 Engine Electrical 🢒 Engine Oil Cooler Hose/Pipe Replacement

Removal Procedure
  1. Remove the cooling fans. Refer to Engine Cooling Fan Replacement .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 597382 Size: SH

    Important: Engine oil cooler quick connect fittings must be replaced whenever they are removed from the engine oil filter adapter.

  3. Remove the engine oil cooler quick connect fittings from the engine oil filter adapter, with the oil pipes still attached.
  4. Remove the upper and lower engine oil cooler pipes from the vehicle.
  5. Slide the plastic cap off the quick connect joint.

    6. Object Number: 289543 Size: SH
  6. Remove the internal spring clips from the engine oil cooler fittings.

    7. Object Number: 289546 Size: SH
  7. Remove the engine oil cooler pipes from the cooler fittings.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 518550 Size: SH

    Important: Engine oil cooler quick connect fittings must be replaced whenever they are removed from the engine oil filter adapter.

  1. Install the engine oil cooler quick connect fittings to the engine oil filter adapter.

    2. Tighten
    Tighten the fittings to 18 N·m (13 lb ft).


    Object Number: 518551 Size: SH
  2. Push the engine oil cooler pipes fully into the new engine oil cooler quick connect fittings, until a "click" is heard.
  3. Tug gently on the cooler pipes to ensure proper retention.
  4. Slide the plastic cap over the quick connect joint.
  5. Route the radiator side of the engine oil cooler pipes in front of the radiator.
  6. Lower the vehicle.
  7. Install the cooling fans. Refer to Engine Cooling Fan Replacement .