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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1019 (Engine Mechanical - 4.8L, 5.3L & 6.0L (Repair Instructions - 1 Of 3)) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1) >> 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 Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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.
    7. Fig 1: View Of Oil Pump Screen & O-Ring Seal
    GM647800Courtesy of GENERAL MOTORS CORP.
  7. Remove the remaining crankshaft oil deflector nuts.
  8. Remove the crankshaft oil deflector.
    9. Fig 2: View Of Crankshaft Oil Deflector & Nuts
    GM683798Courtesy 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. Fig 3: View Of Oil Pump & Bolt
    GM64281Courtesy of GENERAL MOTORS CORP.
  11. If required, clean and inspect the oil pump. Refer to Oil Pump Cleaning and Inspection .
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