2011 7AT Tour 2nd to 3rd Shifting delay and 5K rpm Loss of Power!

jchammond

Didn't want to quote on the long list- first; the shift light on the Auto means nothing/ it is adjustable to Taylor your shifts- mine is set around 7800 & begins to flash around 7300 (usually 4-500 RPM's before the set point))reminder to shift before it hits rev limiter.
Also/ looked up your initial code:::and you may have a failed ecm.
80,000 on an 11' isn't bad, but hopefully someone serviced the Trans at least once.(just a drain & fill procedure)mine was as dark as coffee @50k....so I done it a few times - driving about 5 miles in-between each drain & fill, to ensure I flushed converter & cooler.
I drive mine very hard at times/ so ever since then ,,I perform a once drain & fill every 10k (around 3.5-4qts. On level ground,5+ if on ramps)
Hope your wife doesn't lose faith in it-most likely something simple.
I did see that it talked about the ground......I replaced my battery @50k for preventive maintenance on Jan 16' (car was built Nov.10) just over 5yrs old & noticed it cranked a bit weaker on very cold days.
Put the oem sized Red top Optima in it....works beautifully!
Also replaced my serpentine belt (Gates belt from Napa) old one was getting dry & showing signs of cracking.
You definitely got an electrical problem & the dealership should be able to repair it.
I will post a short video of how it should shift.


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