Main Control Valve Body

NOTE: If a transmission has been disassembled to replace worn or damaged parts and the valves in the main control valve body (7A100) stick repeatedly from foreign material, the torque converter (7902) must be removed and cleaned by using a mechanically agitated cleaner, such as Rotunda Torque Converter/Oil Cooler Cleaner 014-00028 or equivalent.

Removal

1. Loosen the two transmission heat shield bolts using an 8mm socket. Remove the transmission heat shield (7A434).

2.  CAUTION: Do not attempt to pry tab with pry bar or screwdriver. Remove the transmission heat shield from the transmission before attempting to remove the connector.

   NOTE: Check electrical connectors for terminal condition, corrosion and contamination. Repair or replace as required.

   Remove solenoid body assembly connector by pushing on the center tab and pulling on the wire harness.

   
   
   
   
   

3. Position a drain pan under transmission.

4. Remove all transmission pan bolts except the front ones using a 10mm socket. Loosen only the front bolts at this time.

   
   
   
   
   

5. Lower the rear of the transmission pan down and allow the fluid to drain.

6. Remove front pan bolts and remove transmission pan.

7.  CAUTION: Cork gaskets and elastomeric gaskets are not interchangeable. If you remove a cork gasket, replace it with a cork gasket. If you remove an elastomeric gasket, clean, inspect and reuse unless gasket is damaged. Be careful not to cut or bend elastomeric gasket.

   Remove transmission pan gasket. If transmission is equipped with a cork gasket, discard it. If transmission is equipped with the new elastomeric reusable gasket, clean, inspect and reuse unless damaged.

   
   
   Old Style Transmission Pan and Cork Transmission Pan Gasket
   
   
   
   
   
   
   New Style Transmission Pan and Elastomeric Pan Gasket
   
   
   
   
   

8.  CAUTION: Use care not to scratch or damage aluminum pump bore.

   Remove filter assembly and seal by carefully pulling and rotating the filter as necessary. If seal remains in bore, carefully remove using a small screwdriver. Discard filter assembly and seal.

   
   
   
   
   

9. Remove 11 accumulator body bolts using an 8mm socket and two nuts using a 10mm socket. Remove accumulator body assembly.

   
   
   
   
   

10. If valve body separator plate (7A008) is to be left on the transmission, remove and install one of the reinforcing plate bolts into any of the case threaded bolt holes on the opposite end of the separator plate. This will prevent the valve body separator plate from sagging and displacing check balls.

11. NOTE: Do not remove the two bolts as shown on illustration. This will keep the upper and lower main control valve bodies attached as an assembly.

    Remove 14 main control valve body bolts using an 8mm socket and two nuts using a 10mm socket. Remove main control valve body.

    
    
    
    
    

12. Remove nine solenoid body assembly bolts using a T30 Torx® bit and one nut using a 10mm socket. Push down on solenoid body assembly receptacle to remove solenoid body assembly.

    
    
    
    
    

13. Remove solenoid screen assembly by rotating and pulling it out.

    
    
    
    
    

14. Remove separator plate reinforcing plate bolts using an 8mm socket. Remove plate.

    
    
    
    
    

15. Lower valve body separator plate and gaskets carefully so that rubber check balls, steel EPC check ball and spring are retained.

    
    
    
    
    

Installation

1. Apply a light film of petroleum jelly to valve body separator plate to hold new main control to case gasket (7C155).

   
   
   
   
   

2. Apply light film of petroleum jelly to valve body separator plate to hold new main control to separating plate gasket on valve body separator plate.

3. Place a small amount of petroleum jelly on each of the eight rubber check balls and the steel EPC check ball. Position balls on the valve body separator plate as shown.

   
   
   
   
   

4. Place a daub of petroleum jelly onto the EPC ball and spring assembly. Install them into their locations as shown.

   
   
   
   
   

5. Install separator plate reinforcing plate using three separator plate reinforcing plate bolts. Tighten to 9-11 Nm (80-100 lb-in).

   
   
   
   
   
   1. Check location of rubber check balls and steel EPC check ball.
   2. If separator plate reinforcing plate bolt has been used to retain valve body separator plate to case, do not reinstall in separator plate reinforcing plate until Step 8.
   3. The "UP" stamped on separator plate reinforcing plate must be visible.

6. Install solenoid screen assembly and rotate to lock in place.

   
   
   
   
   

7. Install main control valve body over studs. Align manual shift valve (7C389) with manual valve detent lever (7A115).

   
   
   
   
   

8. NOTE: If separator plate reinforcing plate bolt has been used to retain valve body separator plate to case (7005), reinstall after main control valve body is attached.

   Attach main control valve body with two nuts using a 10mm socket and 14 bolts using an 8mm socket. Tighten to 9-11 Nm (80-100 lb-in).

   
   
   
   
   

9. Install accumulator body assembly over studs and attach with two nuts using a 10mm socket and 11 bolts using an 8mm socket. Tighten to 9-11 Nm (80-100 lb-in).

   
   
   
   
   

10. NOTE: Prior to solenoid body assembly installation, coat the case connector bore with Silicone Brake Caliper Grease and Dielectric Compound D7AZ-19331-A, Motorcraft WA-10 or equivalent meeting Ford specification ESA-M1C171-A. Inspect solenoid body assembly electrical connector for proper seating and condition.

    Install solenoid body assembly over stud and attach with nine Torx® bolts using a T30 bit and one nut using a 10mm socket. Tighten to 9-11 Nm (80-100 lb-in).

    
    
    
    
    

11.  CAUTION: Mixing 4x4 and 4x2 transmission fluid filters and transmission pan assembly components could cause transmission damage.

    Select the appropriate style filter assembly and transmission pan for either 4x2 or 4x4 models.

    
    
    
    
    

12. Install a new filter assembly and seal by lubricating the seal with transmission fluid and pressing the filter into place. Do not reuse old filter or seal.

    
    
    
    
    

13. Check for correct placement of transmission pan magnet over dimple in transmission pan.

    
    
    
    
    

14.  CAUTION: Cork gaskets and elastomeric gaskets are not interchangeable. If you remove a cork gasket, replace it with a cork gasket. If you remove an elastomeric gasket, clean, inspect and reuse unless gasket is damaged. Be careful not to cut or bend elastomeric gasket.

    NOTE: A unique transmission pan and pan retaining bolts are required to use the new elastomeric gasket for past model service. The cork style gasket will be retained for past model service where a new transmission pan is not required. If the transmission pan is damaged and requires replacement, a kit will be available. This kit will contain a transmission pan, elastomeric gasket and 20 pan bolts having an increased thread length to accommodate current and past model usage.

    If transmission is equipped with a cork gasket, discard it and install a new gasket. If transmission is equipped with the new elastomeric reusable gasket, clean, inspect and reuse unless damaged.

    
    
    Old Style Transmission Pan and Cork Transmission Pan Gasket
    
    
    
    
    
    
    New Style Transmission Pan and Elastomeric Pan Gasket
    
    
    
    
    

15. Install cleaned pan, gasket and bolts using a 10mm socket. Tighten to 14-16 Nm (10-12 lb-ft).

    
    
    
    
    

16. Completely seat solenoid body connector into solenoid body assembly receptacle by pushing on top of connector. Audible click indicates full connection.

    
    
    
    
    

17. Install transmission heat shield with offset bending inward. Tighten bolts to 9-12 Nm (77-104 lb-in).

    
    
    
    
    

18. Lower vehicle.

19. Fill the transmission to the proper level with Motorcraft MERCON® Multi-Purpose Automatic Transmission Fluid XT-2-QDX or MERCON® equivalent.