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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1443 (Engine Mechanical - 4.2L (Ll8)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pump Replacement >> Removal Procedure

Removal Procedure

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  1. Remove the engine front cover. Refer to Engine Front Cover Replacement  .
    2. Fig 1: Exploded View Of Oil Pump
    GM659575Courtesy of GENERAL MOTORS CORP.
  2. Remove the oil pump cover bolts.
  3. Remove the oil pump cover.
  4. Mark the inner and the outer gears in relation to the oil pump housing.
  5. Remove the inner and the outer oil pump gears.
  6. Remove the oil pump pressure relief valve plug.
  7. Remove the oil pump pressure relief valve and the spring.
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