Main Control: Disassembly

NOTE: Make an identifying mark on each solenoid and the corresponding bore for correct assembly.

NOTE: Solenoids may visually appear the same but their designs/functions are different. Use care not to assemble the main control assembly incorrectly. Incorrect solenoid installation results in poor transmission shift quality.

NOTE: Note the location of the 8 check balls, 6 solenoid dampers, 2 internal valves and springs and 2 filter screens for reassembly.

Main Control Upper Half

1.

Make an identifying mark on each solenoid and the corresponding bore for correct assembly.

GFD31171

Courtesy of FORD MOTOR COMPANY

2.

Remove the 6 long molded leadframe-to-valve body bolts from the molded leadframe.

GFD31172

Courtesy of FORD MOTOR COMPANY

3.

Carefully separate the molded leadframe from the main control assembly.
1. 1.
  
  Molded leadframe
1. 2.
  
  Main control assembly

GFD31173

Courtesy of FORD MOTOR COMPANY

4.

If equipped, remove and discard the foam strip seal.

GFD30932

Courtesy of FORD MOTOR COMPANY

5.

Remove 19 short molded leadframe-to-valve body bolts from the main control assembly.

GFD31174

Courtesy of FORD MOTOR COMPANY

6.

Separate the lower half of the main control assembly from the upper half of the main control assembly.

GFD31175

Courtesy of FORD MOTOR COMPANY

7.

Remove and discard the main control valve body separator plate.

GFD31176

Courtesy of FORD MOTOR COMPANY

8.

Remove the solenoid dampers, check balls, converter drain back valve and filter screens from the main control assembly. Note the location for assembly.
1. 1.
  
  Solenoid dampers
1. 2.
  
  Check balls
1. 3.
  
  Converter drain back valve
1. 4.
  
  Small filter screen
1. 5.
  
  Large filter screen

GFD31177

Courtesy of FORD MOTOR COMPANY

9.

Remove the retaining clips, caps, valves and valve springs from each bore of the main control assembly. Note the location and order for assembly.

GFD31178

Courtesy of FORD MOTOR COMPANY

10.

Using clean mineral spirits, clean the upper half of the main control assembly.

Main Control Lower Half

11.

Remove the 8 solenoid hold down bracket bolts and the solenoid hold down bracket.

GFD31179

Courtesy of FORD MOTOR COMPANY

12.

Remove the solenoids.

GFD31180

Courtesy of FORD MOTOR COMPANY

13.

Remove the retaining clips, caps, valves and valve springs from each bore of the main control assembly. Note the location and order for assembly.

GFD31181

Courtesy of FORD MOTOR COMPANY

14.

Using clean mineral spirits, clean the lower half of the main control assembly.