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Home >> Hummer >> 2006 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions >> Oil Pump Disassemble

Oil Pump Disassemble

    Fig 1: Oil Pump
    GM1552935Courtesy of GENERAL MOTORS CORP.
  1. Remove the thrust (pump to drum) washer (601).
  2. For pump assemblies with an ISS hole plug (248), remove plug bolt (247) and ISS hole plug (248).
  3. Remove the O-ring (249) and discard.
    4. Fig 2: Oil Pump Cover & Oil Pump Body
    GM1552936Courtesy of GENERAL MOTORS CORP.
  4. Remove the pump cover bolts (233).
  5. Remove the pump cover (215) from the pump body (200).
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