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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1444 (Engine Mechanical - 5.3L (Lm4)) >> 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 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Oil Pump, Screen & Components
    GM898134Courtesy of GENERAL MOTORS CORP.
  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.
    7. Fig 2: View Of Crankshaft Oil Deflector & Nuts
    GM683798Courtesy of GENERAL MOTORS CORP.
  7. Remove the remaining crankshaft oil deflector nuts.
  8. Remove the crankshaft oil deflector.
    9. Fig 3: View Of Oil Pump & Bolt
    GM64281Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not allow dirt or debris to enter the oil pump assembly, cap end as necessary.
  9. Remove the oil pump bolts.
  10. Remove the oil pump.
  11. Clean and inspect the oil pump. Refer to Oil Pump Cleaning and Inspection 
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