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

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the Front Air Deflector Replacement . Refer to Front Air Deflector Replacement.

    3. Object Number: 1739056 Size: SH
  3. Install oil drain pan under the vehicle.
  4. Remove the engine oil cooler hose/pipe from the external oil cooler. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting.

    5. Object Number: 1739057 Size: SH
  5. Disconnect the engine oil cooler hose/pipe clip from the fan shroud.

    6. Object Number: 1739054 Size: SH
  6. Disconnect the engine oil cooler hose/pipe clip from the engine.

    7. Object Number: 1739055 Size: SH
  7. Remove the external engine oil cooler hose/pipe from the engine. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting.
  8. Remove the external engine oil cooler hose/pipe from the vehicle.
  9. Remove and discard all engine oil cooler hose/pipe seals.

Installation Procedure

    Object Number: 1739055 Size: SH
  1. Install new engine oil cooler hose/pipe seals.
  2. Install the external engine oil cooler hose/pipe to the vehicle.

    3. Important: The quick connect fitting must be pushed on and then pulled back to verify proper connector engagement.

  3. Install the external engine oil cooler hose/pipe to the engine. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting.

    4. Object Number: 1739054 Size: SH
  4. Connect the engine oil cooler hose/pipe clip to the engine.

    5. Object Number: 1739057 Size: SH
  5. Connect the engine oil cooler hose/pipe clip to the fan shroud.

    6. Object Number: 1739056 Size: SH

    Important: The quick connect fitting must be pushed on and then pulled back to verify proper connector engagement.

  6. Install the engine oil cooler hose/pipes to the external oil cooler. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting.
  7. Remove the oil drain pan from under the vehicle.
  8. Install the Front Air Deflector Replacement . Refer to Front Air Deflector Replacement.
  9. Refill the engine with oil and check for leaks.