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Ideas for prolonging the life of a high mileage 5R55E


mooty

Active Member
Joined
Oct 13, 2014
Messages
44
Vehicle Year
1999
Transmission
Automatic
My 99 4.0 is coming up on 120k mileage and concern has set in for my 5R55E. I know these transmissions are not bulletproof and Ford advertised a 100k mile service warranty which is absolute bullpoop.

Last year I dropped the pan and replaced the filter with a Wix kit. It seems to mostly behave but given the mileage of the truck I don't know how much time I really have. I've been brainstorming on some preventative measures to prolong the time before a rebuild or replacement.

First I am going to replace the trans oil cooler since that seems relatively inexpensive and easy to do.

Then I might install a flush kit on one of the soft lines leading to the trans oil cooler. I've been thinking it would make cycling old fluid out a little easier, even if it's maybe a gallon at a time. Not totally sure about this and I don't want a fluid leak disaster but still pondering it.

Any thoughts, suggestions?

Sent from my SCH-I545PP using Tapatalk
 

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