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ATSG is the largest, Employee-Owned, technical support service in the Automatic Transmission Industry. We offer a Technical Hotline, Books, Software, Bulletins, Seminars, and Technical Courses to the Automatic Transmission Professional. Please use the links on the left to find out more or obtain products or services.

 

 

 


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Ford F4E-III Valve-Body Changes

Change: At the start of production for the 1998 model year, the F4E-III valve body was redesigned. Reason: For better line pressure and torque-converterclutch control. Parts Affected: • The pressure-control solenoid, solenoid body, spacer plate and gaskets were changed. The pressure- modifier valve also was changed and a spring was added to the end of the valve, and an adjustable bore plug replaced the old retainer. Refer to Figure 1 for the previous-design parts and Figure 2 for the new-design parts as well as the new pressure-modifier valve line-up. • The upper side of the main valve body was changed to accommodate the new pressure-control solenoid body and spacer plate. Refer to Figure 3. • The lower side of the main valve body was changed to incorporate a new solenoid-reducing valve. See Figure 4 for the previous design and Figure 5 for the new design.

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