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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.5L (LCV)) >> Repair Instructions >> Engine Prelubing

Engine Prelubing

WARNING: This page is about a different variant/trim than selected.
NOTE:

This procedure is not used in Europe.

Special Tools 

EN-45299  Engine Preluber

For equivalent regional tools, refer to Special Tools .

  1. GM2726809Courtesy of GENERAL MOTORS COMPANY
    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 owner's manual.

    Remove the engine oil pressure sensor (1).

  2. Install the M12 x 1.75 adapter P/N 509376.
  3. GM2146393Courtesy of GENERAL MOTORS COMPANY

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

  4. Pump the handle on the EN-45299  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.
  5. Close the valve and remove the flexible hose and adapter from the engine.
  6. CAUTION:

    Refer to Fastener Caution .

  7. Install the engine oil pressure sensor and tighten to 35 N.m (26 lb ft).
  8. Top-off the engine oil to the proper level.