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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 906 (Engine Mechanical - 4.3L (LU3)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Engine Prelubing

Engine Prelubing

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

J 45299  Engine Preluber

Important:  A constant and continuous flow of clean engine oil is required in order to properly prime the engine. Be sure to use an approved engine oil as specified in the owners manual.

  1. Remove the engine oil filter and fill with clean engine oil.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the oil filter.

    Tighten 

    Tighten the oil filter to 30 N.m (22 lb ft).

  3. Locate the engine block left oil gallery plug and remove.
  4. Install the M16 x 1.5 adapter P/N 509375.
    Fig 1: Removing Engine Block Left Oil Gallery Plug
    G01977944Courtesy of GENERAL MOTORS CORP.
  5. Install the flexible hose to the adapter and open the valve.
  6. Pump the handle on the J 45299  in order to flow a minimum of 1-1.9 liters (1-2 quarts) engine oil. Observe the flow of engine oil through the flexible hose and into the engine assembly.
  7. Close the valve and remove the flexible hose and adapter from the engine.
  8. Install the gallery plug to the engine.

    Tighten 

    Tighten the oil gallery  plug to 60 N.m (44 lb ft).

  9. Top-off the engine oil to the proper level.
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