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West Point
The Library
6.7 Tech & FAQ
6R140 Issues
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[QUOTE="J98, post: 1564420, member: 31080"] 2017 F350. Tuned/deleted. Guy who did the tunes has gone dark, its possibly running PPEI tunes, not sure on trans tune. Truck has 66k miles on it, tuned since about 25k. - New valvebody (~50K miles, dealer installed) - New drop in ford reman trans (~59k miles, dealer installed) - It was running 37x13.5s for a bit, owner has since went to a 295/R18. 5th - 6th its giving a nasty shudder/surge feel, but no squealing. Fuel rail pressure is fine, making me believe the valve body can't hold pressure or the OD clutches are already slipping. I ran a few logs on it using Ezlynk. When the TC is locked, its demanding ~275 PSI line pressure. I'm used to the 68RFE where I can monitor demanded vs. actual, is there a PDI I'm missing on Ezlynk where I can see this on the 6R140? [/QUOTE]
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