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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 432 (Engine Mechanical - 2.2L (On-Vehicle)) >> Repair Instructions >> Oil Pump Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine oil pan. Refer to Oil Pan Replacement .
  2. Remove the oil pump drive bolt.
  3. Remove the oil pump drive. Do this by lifting and turning the oil pump drive.
    Fig 1: Oil Pump Drive & Bolt
    G01658939Courtesy of GENERAL MOTORS CORP.
  4. Remove the bolt that attaches the oil pump to the rear main bearing cap.
  5. Remove the oil pump.
    Fig 2: Oil Pump & Bolt
    G01658940Courtesy of GENERAL MOTORS CORP.
  6. Remove the oil pump drive shaft.

    Important:  Do not crack the oil pump drive shaft retainer.

  7. Remove the oil pump drive shaft retainer.
    Fig 3: Oil Pump Drive Shaft & Retainer
    G01658941Courtesy of GENERAL MOTORS CORP.

    Important:  A loose oil pump tube can cause an air leak and a loss of oil pressure.

  8. Inspect the oil pump pickup tube for looseness.
  9. Clean and inspect the oil pump. Refer to OIL PUMP CLEANING AND INSPECTION .
  10. Inspect the mating surfaces between the engine and the oil pump.

    It must be clean and free of burrs.

    Fig 4: Oil Pump & Pickup Tube
    G01658942Courtesy of GENERAL MOTORS CORP.
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