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Home >> Cadillac >> 2021 >> CT4 V, RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.7L (L3B) - Repair Instructions - Ct4 (6 Of 6) >> Engine Prelubing >> Special Tools

Special Tools

EN-45299  Engine Preluber

Equivalent regional tools: Special Tools

    CAUTION:

    If any malfunction is experienced which may cause debris to enter the oil supply, you must replace the engine oil cooler and hoses if equipped. Debris in the engine oil cooler and oil cooler hoses may be pulled back into the engine causing severe engine damage.

    NOTE:

    A constant and continuous flow of clean engine oil is required in order to properly prime the engine. Ensure an approved engine oil is used, as specified in the owners manual.

  1. Remove the oil fill cap.
  2. GM5432171Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Bolt (1) - Remove [2x]

  3. Lift up on the front of the intake manifold cover (2).
  4. GM5432174Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Remove

  5. GM5398919Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connector.

  6. Engine Oil Pressure Sensor (1) - Remove
  7. Install the M12 x 1.75 adapter.
  8. GM2146393Courtesy of GENERAL MOTORS COMPANY

    Install the flexible hose to the adapter and open the valve.

  9. Pump the handle on the EN-45299  Engine Preluber (1) in order to flow a minimum of 1 - 1.9 liters (1 - 2 quarts) of engine oil. Observe the flow of engine oil through the flexible hose and into the engine assembly.
  10. Close the valve and remove the flexible hose and adapter from the engine.
  11. GM5398919Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Pressure Sensor (1) - Install - Fastener Specifications

  12. Connect the electrical connector.
  13. GM5432174Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Install

  14. GM5432171Courtesy of GENERAL MOTORS COMPANY

    Push down on the front of the intake manifold cover (2).

  15. CAUTION:

    Refer to Fastener Caution .

  16. Intake Manifold Cover Bolt (1) - Install and tighten [2x] - Fastener Specifications
  17. Install the oil fill cap.
  18. Fill the engine oil to the proper level with NEW engine oil.