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Home >> Ford >> 2006 >> Explorer 4.0 E, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 5R55 >> Disassembly And Assembly Of Subassemblies >> Fluid Pump >> Disassembly

Fluid Pump: Disassembly

  1. Remove the fluid pump gasket, fluid pump seal ring and the No. 1 thrust washer.
    1. Remove and discard the fluid pump gasket.
    2. Remove and discard the fluid pump seal ring (square cut).
    3. Remove and tag the No. 1 thrust washer.
      Fig 1: Identifying Fluid Pump Gasket, Fluid Pump Seal Ring, And No. 1 Thrust Washer
      G04639764Courtesy of FORD MOTOR CO.
  2. Remove the fluid pump support seal ring.
    Fig 2: Locating Fluid Pump Support Seal Ring
    G04639765Courtesy of FORD MOTOR CO.
  3. Remove the seal rings.
    Fig 3: Identifying Seals Rings
    G04639766Courtesy of FORD MOTOR CO.
  4. Remove the fluid pump housing.
    Fig 4: Identifying Fluid Pump Housing Retaining Screws
    G04639767Courtesy of FORD MOTOR CO.
  5. NOTE: A rough casting on the pump surface crescent is not a flaw.
    NOTE: The fluid pump gears are part of the pump assembly and are not repaired separately.
    Fig 5: Identifying Fluid Pump Gears
    G04639768Courtesy of FORD MOTOR CO.
  6. Remove the fluid pump gears.
  7. Remove the drive gear O-ring seal and discard. Inspect the fluid pump gears for cracks and scoring.
    Fig 6: Identifying Fluid Pump Drive Gear O-Ring Seal
    G04639769Courtesy of FORD MOTOR CO.
  8. Inspect the overdrive pump.
    • Inspect the overdrive pump support gear pockets for scoring and wear.
    • Clean and inspect the overdrive and rear input shaft bushings.
      Fig 7: Identifying Overdrive Pump
      G04639770Courtesy of FORD MOTOR CO.
  9. Inspect the fluid pump adapter plate for scoring and wear.
    Fig 8: Locating Fluid Pump Adapter Plate
    G04639771Courtesy of FORD MOTOR CO.
  10. Remove and discard the valve.
    Fig 9: Locating Valve
    G04639772Courtesy of FORD MOTOR CO.
  11. Inspect the fluid pump-to-converter housing bushing.
    Fig 10: Identifying Fluid Pump-To-Converter Housing Bushing
    G04639773Courtesy of FORD MOTOR CO.