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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical (Repair Instructions -- 1 Of 3) -- 4.8L, 5.3L & 6.0L) >> 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 variant/trim than selected.
  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, Bolt & Nuts
    GM647800Courtesy of GENERAL MOTORS CORP.
  8. Remove the remaining crankshaft oil deflector nuts.
  9. Remove the crankshaft oil deflector.
  10. Fig 2: View Of Crankshaft Oil Deflector & Nuts
    GM683798Courtesy of GENERAL MOTORS CORP.
  11. Remove the oil pump bolts.
    IMPORTANT: Do not allow dirt or debris to enter the oil pump assembly, cap end as necessary.
  12. Remove the oil pump.
  13. Fig 3: View Of Oil Pump & Bolt
    GM64281Courtesy of GENERAL MOTORS CORP.
  14. If required, clean and inspect the oil pump. Refer to Oil Pump Cleaning and Inspection .