Under high mileage aggressive driving conditions, particularly in European model cars, vehicles were experiencing forward and direct clutch cylinder bushing failures on vehicles equipped with CD4E transmissions. The root cause of the problem was determined to be inadequate flow of transmission fluid under high-speed conditions. A Filtertek engineering team lead by Executive Vice President of Technology, Larry Larkin was requested by Ford to assist in evaluating solutions for this problem. After six months of working alternative design configurations for the CD4E Transmission Sump Filter, Filtertek developed a filter design solution that eliminated the early wear out problem. The improvement results were significant with the overall achievement of extending the transmission integrity to well beyond the limit of the vehicle warranty. There was a 400% improvement in filter integrity at 150,000 miles and increased reliability from 72% to 99.5% at 150,000 miles.Lets list what we think we know..
- Problem: inadequate flow of transmission fluid under high-speed conditions
- Solution: designed a filter that countered the problem (or so there PR states
Since some poeple have killed the tranny in less than 10k I think it's safe to assume that a plugged filter is not the cause. I doubt that a filter can clog in under 10K and i have read of more than a couple people haveing the tranny die by then
If that is the case then adding an addional filter will not help the problem because it will add attional restriction in the sytem. But replacing the current filter with a higher flow less restriction version may work? Or omitting the factory filter (empty filter) all togeter for this brand.
