Shifting problems.

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smith

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My 2013 Expedition Limited with 125,000 miles has developed a transmission shift issue at 40 mph. Only does it for that shift sometimes. Any ideas?
 
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smith

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Was told by a Trans guy that the trans never needed to have the filter and fluid changed, only when it was used in extreme conditions. Obviously he must have been wrong.
 

Motorcity muscle

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How do you re-set the computer in the transmission?
You disconnect the battery, then jumper the cables to drain the capacitors. Takes 15-20 min. to drain completely. Reconnect and then start truck and let idle with all the acc. off, computer will re-learn idle and then drive it easy to learn the shift points.
 
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