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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 418 (Engine Mechanical - 4.2L 6-Cylinder (On-Vehicle)) >> Repair Instructions >> Oil Pump Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 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.
  2. Install the oil pump pressure relief valve plug.
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    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. Fig 1: Installing Oil Pump Outer And Inner Gears
    G01706352Courtesy of GENERAL MOTORS CORP.
  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 .
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