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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 4.3L >> Repair Instructions >> Off-Vehicle Repair Instructions >> Oil Pump Disassemble

Oil Pump Disassemble

  1. Remove the oil pump driveshaft and oil pump driveshaft retainer.
    Fig 1: Removing Oil Pump Driveshaft
    G01643976Courtesy 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: Removing Oil Pump Screen
    G01643977Courtesy of GENERAL MOTORS CORP.
  3. Remove the oil pump cover bolts.
    Fig 3: Removing Oil Pump Cover Bolts
    G01643978Courtesy of GENERAL MOTORS CORP.
  4. Remove the oil pump cover.
    Fig 4: Removing Oil Pump Cover
    G01643979Courtesy of GENERAL MOTORS CORP.
  5. Remove the oil pump drive gear and the oil pump driven gear.
    Fig 5: Removing Oil Pump Drive Gear
    G01643980Courtesy of GENERAL MOTORS CORP.
  6. Matchmark the gear teeth for assembly.
    CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  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
      Fig 6: Removing Oil Pump Pressure Relief Valve Spring
      G01643981Courtesy of GENERAL MOTORS CORP.
    3. 7.3. The oil pump pressure relief valve
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