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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1497 (Engine Mechanical - 4.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pump Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the oil pump pressure relief valve and the spring.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the oil pump pressure relief valve plug.

    Tighten 

    Tighten the oil pump pressure relief valve to 14 N.m (124 lb in).

  3. Install the oil pump outer and inner gears as removed.
  4. Install the oil pump cover.
  5. Install the oil pump cover bolts.

    Tighten 

    Tighten the oil pump cover bolts to 10 N.m (89 lb in).

  6. Install the front cover. Refer to ENGINE FRONT COVER REPLACEMENT   .
    Fig 1: Installing Oil Pump Cover, Oil Pump Gears And Pressure Relief Valve
    G02128603Courtesy of GENERAL MOTORS CORP.
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