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Main Control: Installation

    NOTE: If cleaning the main control assembly or inspecting the valves, refer to AUTOMATIC TRANSAXLE/TRANSMISSION REFERENCE MANUAL - 6F50 article. If installing a new main control assembly, continue with this procedure.
    NOTE: Make sure that the manual pin (part of the TR sensor) is correctly installed in the manual valve.
  1. Position the TSS, OSS and TR sensor wiring harnesses aside and install the main control valve body.
    2. Fig 1: Locating TSS, OSS & TR Sensor Wiring Harnesses
    GF0031654Courtesy of FORD MOTOR CO.
  2. Inspect the manual pin to make sure it is correctly installed in the manual valve. If not, pull the valve body off the transaxle case. Correctly install the manual pin in the manual valve and position the valve body in place.
    3. Fig 2: Identifying Manual Pin
    GF0031655Courtesy of FORD MOTOR CO.
  3. Install the TR sensor detent spring and the 10 bolts. Tighten the bolts in the sequence shown.
    • Tighten to 12 Nm (106 lb-in).
    4. Fig 3: Tightening TR Sensor Detent Spring Bolts In Sequence
    GF0031656Courtesy of FORD MOTOR CO.
    NOTE: Do not handle the solenoid body in the leadframe area or by the screens of the solenoid body filter or damage to the solenoid body may occur.
    NOTE: Use care not to break the alignment tabs when installing the solenoid body filter. Damage to the transaxle will occur if the solenoid body is not correctly aligned.
    NOTE: Make sure that the filter passage areas are clean of foreign material before installing the filter. Damage to the transaxle will occur if the filter passages are not clean.
  4. Install a new solenoid body filter assembly by pushing it straight down on to the alignment tabs.
    5. Fig 4: Identifying Solenoid Body Filter Assembly
    GF0031652Courtesy of FORD MOTOR CO.
    NOTE: Make sure not to pinch the Turbine Shaft Speed (TSS), Output Shaft Speed (OSS) or Transmission Range (TR) sensor wiring harnesses when installing the solenoid body. Damage to the wiring harness will occur.
    NOTE: Install the different length bolts in the locations noted during disassembly.
  5. Install the solenoid body and the 11 bolts.
    1. 42 mm (1.65 in) bolt
    2. 63 mm (2.48 in) bolts
    3. 80 mm (3.14 in) bolts
    4. 95 mm (3.74 in) bolts
    6. Fig 5: Locating Solenoid Body Bolts
    GF0031657Courtesy of FORD MOTOR CO.
  6. Tighten the solenoid body bolts in the sequence shown.
    • Tighten to 12 Nm (106 lb-in).
    7. Fig 6: Tightening Solenoid Body Bolts In Sequence
    GF0031658Courtesy of FORD MOTOR CO.
  7. Route the OSS sensor wiring harness and connect the electrical connector.
    8. Fig 7: Locating OSS Sensor Wiring Harness & Electrical Connector
    GF0031659Courtesy of FORD MOTOR CO.
  8. Connect the TR sensor electrical connector.
    1. Connect the electrical connector.
    2. Slide the locking tab over.
    9. Fig 8: Identifying TR Sensor Electrical Connector
    GF0031660Courtesy of FORD MOTOR CO.
  9. Connect the TSS sensor electrical connector.
    10. Fig 9: Identifying TSS Sensor Electrical Connector
    GF0031661Courtesy of FORD MOTOR CO.
  10. Inspect the main control cover seal for damage and install new if necessary.
    11. Fig 10: Inspecting Transaxle Main Control Cover Seal For Damage
    GF0031662Courtesy of FORD MOTOR CO.
    NOTE: Inspect the 20-pin solenoid body connector seal to make sure that the seal is on the inside of the main control cover or a transmission fluid leak will occur.
    NOTE: Install the studbolts in the locations noted during disassembly.
  11. Install the main control cover and loosely install the 14 bolts.
    1. Bolt location
    2. Studbolt location
    12. Fig 11: Locating Main Control Cover Bolts
    GF0031663Courtesy of FORD MOTOR CO.
  12. Tighten the main control cover bolts in the sequence shown.
    • Tighten to 12 Nm (106 lb-in).
    13. Fig 12: Identifying Tightening Sequence
    GF0045813Courtesy of FORD MOTOR CO.
  13. Position the transmission fluid cooler thermal bypass valve and transmission fluid cooler tube assembly in place and install the 2 nuts.
    • Tighten to 9 Nm (80 lb-in).
    14. Fig 13: Identifying Transmission Fluid Cooler Tube Assembly & Nuts
    GF0031665Courtesy of FORD MOTOR CO.
  14. Connect the transaxle electrical connector and install the wiring harness fastener on the main control cover stud.
    15. Fig 14: Identifying Connector And Wiring Harness Fastener
    GF0045812Courtesy of FORD MOTOR CO.
  15. Inspect the transmission fluid cooler tube backing ring and seal for damage and install a new backing ring or seal if necessary. Lubricate the transmission fluid cooler tube seal with clean transmission fluid and install the backing ring and seal on the transmission fluid cooler tube.
    Item Part Number Description
    1 7D285 Seal
    2 7J324 Backing ring
    16. Fig 15: Identifying Transmission Fluid Cooler Tube Backing Ring & Seal
    GF0031666Courtesy of FORD MOTOR CO.
  16. Position the transmission fluid cooler tube in place and install a new bolt.
    • Tighten to 9 Nm (80 lb-in).
    17. Fig 16: Identifying Transmission Fluid Cooler Tube Bolt
    GF0031645Courtesy of FORD MOTOR CO.
  17. Tighten the transmission fluid cooler tube fitting.
    • Tighten to 25 Nm (18 lb-ft).
    18. Fig 17: Identifying Transmission Fluid Cooler Tube Fitting From Thermal Bypass Valve
    GF0031644Courtesy of FORD MOTOR CO.
    NOTE: Coolant hoses removed for clarity.
  18. Install the transmission fluid filler tube and the nut.
    • Tighten to 11 Nm (97 lb-in).
    19. Fig 18: Identifying Transmission Fluid Filler Tube
    GF0031643Courtesy of FORD MOTOR CO.
    NOTE: Coolant hoses removed for clarity.
  19. Install the transmission fluid level indicator.
    20. Fig 19: Identifying Transmission Fluid Level Indicator
    GF0031642Courtesy of FORD MOTOR CO.
  20. Route the coolant hoses to their position on the transmission fluid filler tube.
    21. Fig 20: Identifying Coolant Hoses From Transmission Fluid Filler Tube
    GF0031641Courtesy of FORD MOTOR CO.
  21. Position the ACL assembly in place and install the 2 ACL assembly bracket bolts.
    • Tighten to 11 Nm (97 lb-in).
    22. Fig 21: Identifying Bolts
    GF0045811Courtesy of FORD MOTOR CO.
  22. Tighten the ACL outlet pipe clamp at the TB.
    • Tighten to 5 Nm (44 lb-in).
    23. Fig 22: Locating Air Cleaner Outlet Pipe Clamp
    GF0031640Courtesy of FORD MOTOR CO.
  23. Connect the engine breather to the ACL assembly.
    24. Fig 23: Locating Engine Breather
    GF0031638Courtesy of FORD MOTOR CO.
  24. Connect the MAF sensor electrical connector.
    25. Fig 24: Identifying MAF Sensor Connector
    GF0045810Courtesy of FORD MOTOR CO.
  25. Fill with clean transmission fluid to the correct level.
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