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

Fluid Pump: Assembly

    NOTE: Minor burrs and scoring may be removed with crocus cloth. If damage is found, install a new assembly.
  1. Inspect the fluid pump components for the following:
    • Pump body and case for burrs
    • Fluid passages for obstructions
  2. NOTE: Check and make sure that the garter spring in the seal has not popped off of the converter hub seal.
    Fig 1: Identifying Seal And Special Tool
    G04639774Courtesy of FORD MOTOR CO.
  3. Install a new seal onto the special tool.
  4. Using the special tool, install the converter hub seal.
    Fig 2: Locating Converter Hub Seal
    G04639775Courtesy of FORD MOTOR CO.
  5. Install a new O-ring seal in fluid pump drive gear.
    Fig 3: Identifying Fluid Pump Drive Gear O-Ring Seal
    G04639776Courtesy of FORD MOTOR CO.
  6. CAUTION: Lubricate the special tool with multi-purpose grease.
    Fig 4: Identifying Seat O-Ring Seal In Pump Gear
    G04639777Courtesy of FORD MOTOR CO.
  7. Using the special tool, seat the O-ring seal in the pump gear.
  8. CAUTION: The chamber on the inside edge of the small gear must be UP when in the pump housing gear pocket. The dimple on the larger gear must be DOWN when in the pump housing gear pocket.
    Fig 5: Identifying Fluid Pump Gears
    G04639778Courtesy of FORD MOTOR CO.
  9. Install the pump gears into the fluid pump housing. Apply multi-purpose grease to the pump gear to prevent scoring at start up.
  10. Install a new seal on the new valve.
    Fig 6: Installing Seal On Valve
    G04639779Courtesy of FORD MOTOR CO.
  11. Install a new valve with the tab facing down.
    Fig 7: Locating Valve With Tab Facing Down
    G04639780Courtesy of FORD MOTOR CO.
  12. First install the fluid pump adapter plate and then the alignment pins in their correct location.
    Fig 8: Identifying Alignment Pins
    G04639781Courtesy of FORD MOTOR CO.
  13. CAUTION: The special tools must be used to correctly align the pump with the adapter plate to reduce gear noise, bushing failure and leakage.
    Fig 9: Identifying Special Tool
    G04639782Courtesy of FORD MOTOR CO.
  14. Using the special tool, align the fluid pump to the adapter plate.
  15. Using the special tools, assemble the pump.
    Fig 10: Identifying Special Tool
    G04639783Courtesy of FORD MOTOR CO.
  16. Loosely install the fluid pump housing screws in their correct location and remove the special tools.
    Fig 11: Identifying Fluid Pump Housing Screws
    G04639784Courtesy of FORD MOTOR CO.
  17. Install the 2 remaining screws and tighten all the screws in a star pattern.
    • Tighten to 22 Nm (16 lb-ft).
      Fig 12: Identifying Fluid Pump Housing Retaining Screws
      G04639785Courtesy of FORD MOTOR CO.
  18. Install a new fluid pump seal ring.
    Fig 13: Identifying Fluid Pump Seal Ring
    G04639786Courtesy of FORD MOTOR CO.
  19. Install 2 new seal rings.
    Fig 14: Identifying Overdrive Brake Drum Seals
    G04639787Courtesy of FORD MOTOR CO.
  20. CAUTION: Be careful not to overstretch the seal ring past the seal ring groove. Damage to the seal will occur.
    Fig 15: Installing Fluid Pump Seal Ring Using Special Tools
    G04639788Courtesy of FORD MOTOR CO.
  21. Using the special tools, install the fluid pump seal ring.
  22. CAUTION: Verify correct seal installation.
    NOTE: Make sure seal grooves are clean and free of burrs. Make sure that the seal is seated into the groove.
    Fig 16: Locating Seal
    G04639789Courtesy of FORD MOTOR CO.
  23. Verify that the seal is installed correctly.
  24. CAUTION: Failure to correctly size the seal will cause damage to the seal when the torque converter is installed.
    Fig 17: Identifying Special Tool
    G04639790Courtesy of FORD MOTOR CO.
  25. Using the special tool, size the seal to the correct size. Leave the special tool on the seal ring for 2 minutes to obtain the correct seal size.