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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 960 (Automatic Transmission - 5R110W -- F250-F550 Super Duty) >> General Procedures >> Transmission Fluid Cooler BACKFLUSHING And Cleaning >> Procedure for using a flush and fill machine

Procedure for using a flush and fill machine

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Whenever the transmission has been serviced or a remanufactured transmission has been installed, the transmission fluid cooler tubes and the remote filter manifold must be cleaned and backflushed to remove any contaminants or transmission failure will occur.
NOTE: Install a new oil-to-air (OTA) cooler as part of a transmission overhaul, or when installing a remanufactured transmission.
NOTE: This transmission is equipped with a remote transmission fluid filter which is located on the driver side rear of the transmission. When carrying out an overhaul or installing a remanufactured transmission a new filter element must be installed.
NOTE: Repeat repairs will occur if the transmission fluid flow does not meet specification. To avoid repeat repairs, carry out the fluid cooler flow test. For additional information, refer to Transmission Fluid Cooler .
NOTE: Carry out this procedure with the oil-to-air (OTA) cooler and the transmission removed from the vehicle.
NOTE: Leave the remote filter lines connected.
  1. Using a suitable torque converter/fluid cooler cleaner, flush the transmission fluid cooler and tubes.
  2. If equipped, remove and discard the transmission fluid in-line filter.
    3. Fig 1: Identifying Transmission Fluid In-Line Filter
    G03908234Courtesy of FORD MOTOR CO.
  3. Remove the remote filter element.
    4. CAUTION: The transmission cooler tubes must be disconnected prior to flushing out the cooler tubes.
  4. Disconnect the 4 transmission fluid cooler tubes at the remote filter housing. For additional information, refer to TRANSAXLE/TRANSMISSION COOLING article.
  5. Leave the transmission fluid cooler tubes disconnected from the transmission case.
  6. Disconnect both transmission fluid cooler tubes from the radiator in-tank cooler.
  7. Flush each transmission fluid cooler tube independently.
  8. Connect the cleaner pressure and return lines correctly.
    1. Connect the pressure line-to-fluid cooler inlet tube.
    2. Connect the return line-to-fluid cooler outlet tube.
    3. Place the outlet end of the return line in the fluid tank reservoir.
    9. NOTE: Cycling the solvent pump on and off will help dislodge contaminants in the cooler system.
  9. Switch the pump ON. Allow the fluid to circulate a minimum of 5 minutes.
  10. Switch the pump OFF.
  11. Disconnect the cleaner pressure line at the fluid cooler tube.
  12. Using compressed air, blow through the fluid cooler inlet tube until all fluid is removed.
  13. Remove the rubber hoses from fluid cooler tubes.
  14. Connect the cleaner pressure and return lines correctly.
    1. Connect the pressure line to the radiator in-tank fluid cooler.
    2. Connect the return line to the other side of the radiator in-tank fluid cooler.
    3. Place the outlet end of the return line in the fluid tank reservoir.
    15. NOTE: Cycling the pump on and off will help dislodge contaminants in the cooler system.
  15. Switch the pump ON. Allow the fluid to circulate a minimum of 5 minutes.
  16. Switch the pump OFF.
  17. Disconnect the cleaner pressure line at the fluid cooler tube.
  18. Using compressed air, blow through the fluid cooler inlet tube until all fluid is removed.
  19. Remove the rubber hoses from fluid cooler tubes.
  20. Flush the remote filter manifold and make sure that the small bypass orifice is free of foreign material.
  21. Flush the remote filter housing and clean the magnet.
    22. NOTE: Install a new oil-to-air (OTA) cooler as part of a transmission overhaul, or when installing a remanufactured transmission.
  22. Backflush and forward flush the OTA.
  23. Backflush and forward flush the radiator in-tank cooler.
  24. Install a new remote filter element.
  25. Carry out the transmission fluid cooler flow test. For additional information, refer to Transmission Fluid Cooler  in this article.
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