SECTION 307-01: Automatic Transaxle/Transmission
2000 F-Super Duty/Excursion/Motorhome Chassis Workshop Manual
IN-VEHICLE REPAIR
Procedure revision date: 01/29/2003

Main Control Valve Body —Accumulator Body, Solenoid Body


Material
ItemSpecification
Silicone Brake Caliper Grease and Dielectric Compound
XG-3
ESE-M1C171-A

Removal

NOTE: If the transmission has been disassembled to replace worn or damaged parts, and the valves in the main control valve body stick repeatedly from foreign material, the torque converter must be removed and cleaned by using a suitable torque converter/fluid cooler cleaner.

  1. NOTE: All gasoline vehicles will have new adaptive shift strategies. Whenever the vehicle's battery has been disconnected for any type of service or repair the strategy parameters that are stored in the keep alive memory (KAM) will be lost. The strategy will start to relearn once the battery is reconnected and the vehicle is driven. This is a temporary condition and will return to normal operating condition once the powertrain control module (PCM) relearns all the parameters from the driving conditions. There is no set time frame for this process. If this concern is present during downshifts or converter clutch apply, it is not the fault of the shift strategy and will require diagnosis as outlined in the workshop manual.

    The customer needs to be notified that they may experience slightly different upshifts either soft or firm and that this is a temporary condition and will eventually return to normal operating condition.

    Disconnect the battery ground cable. For additional information, refer to Section 414-01.
  1. Position the vehicle on a hoist. For additional information, refer to Section 100-02.
  1. Disconnect the solenoid body electrical connector.
  1. NOTE: Do not discard the fluid pan gasket unless damaged. This is a reusable gasket.

    Remove the transmission fluid pan and gasket.
    1. Loosen, but do not remove the bolts.
    1. Remove the front and side bolts.
    1. Lower the front of the fluid pan and allow the fluid to drain.
    1. Remove the remaining fluid pan bolts and the fluid pan.
  1.  CAUTION: If the seal remains in the pump bore, remove it carefully with a small screwdriver so as not to scratch or damage the aluminum bore.

    NOTE: After removal, discard the filter and seal assembly.

    Remove the filter and seal assembly by carefully pulling and rotating the filter as necessary.
  1. Remove the accumulator body.
    1. Remove the bolts.
    1. Remove the nuts.
    1. Remove the accumulator body.
  1.  CAUTION: Prevent the front of the valve body separator plate from sagging and displacing the check balls.

    If the valve body separator plate is not being serviced:
    1. Remove the bolt.
    1. Install the bolt into any case-threaded bolt hole on the opposite end of the separator plate.
  1. Remove the main control valve body assembly.
    1. Remove the bolts.
    1. Remove the nuts.
    1. Remove the main control valve body.
  1. Remove the solenoid body assembly.
    1. Remove the bolts.
    1. Remove the nut.
    1. Remove the solenoid body assembly.
  1. Remove the solenoid screen assembly by rotating and pulling.
  1.  CAUTION: The steel electronic pressure control (EPC) check ball is spring-loaded under the valve body separator plate.

    NOTE: If the valve body separator plates are not to be serviced, proceed to installation procedure.

    Remove the valve body separator plate reinforcement.
    1. Remove the bolts.
    1. Remove the separator plate reinforcement.
  1. Lower and remove the valve body separator plate and gaskets.

Installation

 CAUTION: Using the incorrect gaskets can cause damage to the transmission.

  1. NOTE: Refer to parts catalog for correct gasket usage.

    NOTE: If the valve body separator plate was not removed, proceed to Step 6.

    NOTE: Apply a light film of petroleum jelly to the valve body separator plate prior to assembling the new gaskets.

    Assemble the new gaskets to the valve body separator plate.
    1. Main control to case gasket
    1. Valve body separator plate
    1. Main control to separator plate gasket
  1. NOTE: Apply a small amount of petroleum jelly to each check ball prior to positioning them on the valve body separator plate.

    Install eight rubber and one steel EPC check balls.


    ItemPart NumberDescription
    1EPC steel check ball
    2CB6Check ball
    3BS1Ball shuttle
    4CB9Check ball
    5CB14Check ball
    6CB1Check ball
    7BS3Ball shuttle
    8CB8Check ball
    9CB7Check ball
  1. NOTE: Apply petroleum jelly to the EPC check ball spring prior to installing it into the case.

    Install the EPC check ball spring.
  1. Position the valve body separator plate and the gaskets to the case carefully to retain the check balls.
  1. NOTE: The word UP stamped on the separator plate reinforcement, must be visible when installed.

    Install the separator plate reinforcement plate.
    1. Position the separator plate reinforcement plate.
    1. Install the bolts.
  1. Install the solenoid screen assembly by pushing it in and rotating it to lock.
  1. NOTE: Prior to installing the solenoid body assembly, coat the case connector bore with silicone grease.

    Install the solenoid body assembly.
    1. Install the solenoid body assembly.
    1. Install the nut.
    1. Install the bolts and nut finger-tight.
  1. Install the main control valve body.
    1. Install the main control valve body.
    1. Aligning the manual shift valve with the manual valve detent lever.
    1. Install the nuts finger-tight.
    1. Install the bolts finger-tight.
  1. If previously installed, remove, then reinstall the bolt into the separator plate reinforcing plate.
    1. Remove the bolt.
    1. Install the bolt.
  1. Install the accumulator body.
    1. Install the accumulator body.
    1. Install the nuts finger-tight.
    1. Install the bolts finger-tight.
  1. Tighten all the accumulator body, main control valve body, and solenoid body nuts and bolts. Tighten the bolts working from the center to the outside.
  1.  CAUTION: Do not reuse the old filter and seal assembly.

     CAUTION: Make sure that the pump bore is clean and the old filter seal has been removed.

    NOTE: Prior to installation, lightly lubricate the fluid filter seal with clean automatic transmission fluid.

    Install a new filter and seal assembly by pressing it into place.
  1. NOTE: Do not discard the gasket unless damaged. This is a reusable gasket.

    NOTE: Apply a light coat of petroleum jelly to hold the gasket to the fluid pan.

    Position the gasket onto the clean fluid pan. Make sure the magnet is positioned over the dimple in the fluid pan.
  1.  CAUTION: Mixing the 4x2-style and 4x4-style transmission fluid filters and transmission pan assembly components can cause transmission damage.

    Install the correct pan with gasket for this application. Alternately tighten the bolts.
  1. Connect the solenoid body electrical connector.
  1. Lower the vehicle.
  1. Connect the battery ground cable.