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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1136 (Automatic Transmission - 5R110W (TORQSHIFT(R))) >> General Procedures >> Transmission Fluid Cooler Back Flushing 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 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Whenever the transmission has been serviced or a remanufactured transmission has been installed, the transmission fluid cooler tubes must be cleaned and back flushed to remove any contaminants or transmission failure will occur.
NOTE: Install a new OTA cooler as part of a transmission overhaul, or when installing a remanufactured transmission.
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 OTA cooler and the transmission removed from the vehicle.
  1. Using a suitable torque converter/fluid cooler cleaner, flush the transmission fluid cooler and tubes.
  2. If equipped, remove the transmission fluid inline filter. Install a straight pipe with hose clamps in its place.
    3. Fig 1: Identifying Transmission Fluid In-Line Filter
    G03908234Courtesy of FORD MOTOR CO.
  3. Leave the transmission fluid cooler tubes disconnected from the transmission case.
  4. Disconnect both transmission fluid cooler tubes from the radiator in-tank cooler.
  5. Flush each transmission fluid cooler tube independently.
  6. Connect the cleaner pressure and return lines correctly, in the following sequence.
    1. Connect the pressure line to the transmission fluid cooler inlet tube.
    2. Connect the return line to the transmission fluid cooler outlet tube.
    3. Place the outlet end of the return line in the fluid tank reservoir.
    7. NOTE: Cycling the solvent pump on and off will help dislodge contaminants in the cooler system.
  7. Switch the pump ON. Allow the transmission fluid to circulate a minimum of 5 minutes.
  8. Switch the pump OFF.
  9. Disconnect the cleaner pressure line at the transmission fluid cooler tube.
  10. Using compressed air, blow through the transmission fluid cooler inlet tube until all transmission fluid is removed.
  11. Remove the rubber hoses from transmission fluid cooler tubes.
  12. Connect the cleaner pressure and return lines correctly, in the following sequence.
    1. Connect the pressure line to the radiator in-tank transmission fluid cooler.
    2. Connect the return line to the other side of the radiator in-tank transmission fluid cooler.
    3. Place the outlet end of the return line in the fluid tank reservoir.
    13. NOTE: Cycling the pump on and off will help dislodge contaminants in the cooler system.
  13. Switch the pump ON. Allow the transmission fluid to circulate a minimum of 5 minutes.
  14. Switch the pump OFF.
  15. Disconnect the cleaner pressure line at the transmission fluid cooler tube.
  16. Using compressed air, blow through the transmission fluid cooler inlet tube until all transmission fluid is removed.
  17. Remove the rubber hoses from transmission fluid cooler tubes.
    18. NOTE: Install a new OTA cooler as part of a transmission overhaul or when installing a remanufactured transmission.
  18. Back flush and forward flush the OTA.
  19. Back flush and forward flush the radiator in-tank transmission fluid cooler.
  20. Install a new transmission fluid inline filter if equipped. Install the transmission fluid inline filter kit if the vehicle was not equipped with the kit. For additional information, refer to Transmission Fluid In-Line Filter .
  21. Carry out the transmission fluid cooler flow test. For additional information, refer to Transmission Fluid Cooler .
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