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Oil Pump Disassemble

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the oil pump driveshaft and oil pump driveshaft retainer.
    Fig 1: Remove Oil Pump Driveshaft & Retainer
    G02106298Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not remove the oil pump screen from the pipe. The pipe and oil pump screen are serviced as a complete assembly.
  2. Remove the oil pump screen, if necessary. The oil pump screen has a press fit into the oil pump cover.
    Fig 2: Remove Oil Pump Screen
    G02106299Courtesy of GENERAL MOTORS CORP.
  3. Remove the oil pump cover bolts.
    Fig 3: Remove Oil Pump Cover Bolts
    G02106300Courtesy of GENERAL MOTORS CORP.
  4. Remove the oil pump cover.
    Fig 4: Remove Oil Pump Cover
    G02106301Courtesy of GENERAL MOTORS CORP.
  5. Remove the oil pump drive gear and the oil pump driven gear.
  6. Matchmark the gear teeth for assembly.
    Fig 5: Remove Oil Pump Drive Gear & Oil Pump Driven Gear
    G02106302Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
  7. Remove the following items:
    1. 7.1. The oil pump pressure relief valve spring straight pin
    2. 7.2. The oil pump pressure relief spring
    3. 7.3. The oil pump pressure relief valve
    Fig 6: Remove Oil Pump Pressure Relief Valve Spring Straight Pin, Relief Spring & Relief Valve
    G02106303Courtesy of GENERAL MOTORS CORP.
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