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Home >> Chevrolet >> 2009 >> Impala LTZ >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4T65-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions - On Vehicle >> Oil Pump Replacement >> Removal Procedure

Removal Procedure

    Fig 1: Locating Wiring Harness & Electrical Connectors
    GM48209Courtesy of GENERAL MOTORS CORP.
    CAUTION: Do NOT remove the three bolts which hold the pump together.
  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .
    2. Fig 2: Locating Oil Pump Bolts
    GM893320Courtesy of GENERAL MOTORS CORP.
  2. Remove the oil pump bolts (230, 231).
    3. Fig 3: Locating Oil Pump Assembly
    GM893321Courtesy of GENERAL MOTORS CORP.
  3. Remove the oil pump (200) from the valve body (300).
  4. Clean and inspect the oil pump. Refer to Transmission Fluid Pump Disassemble  and Transmission Fluid Pump Assemble .
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