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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pump, Pump Screen and Deflector Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the oil pan. Refer to OIL PAN REPLACEMENT   .
  2. Remove the engine front cover. Refer to ENGINE FRONT COVER REPLACEMENT   .
  3. Remove the oil pump screen bolt and nuts.
  4. Remove the oil pump screen with O-ring seal.
  5. Remove the O-ring seal from the pump screen.
  6. Discard the O-ring seal.
    Fig 1: Removing Oil Pump Screen
    G02129247Courtesy of GENERAL MOTORS CORP.
  7. Remove the remaining crankshaft oil deflector nuts.
  8. Remove the crankshaft oil deflector.
    Fig 2: Removing Crankshaft Oil Deflector
    G02129248Courtesy of GENERAL MOTORS CORP.
  9. Remove the oil pump bolts.
    IMPORTANT: Do not allow dirt or debris to enter the oil pump assembly, cap end as necessary.
  10. Remove the oil pump.
  11. Clean and inspect the oil pump. Refer to OIL PUMP CLEANING AND INSPECTION  
    Fig 3: Removing Oil Pump
    G02129249Courtesy of GENERAL MOTORS CORP.
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