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

Originally Posted by 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. did not know this, good to know.
Also/ looked up your initial code:::and you may have a failed ecm. GRRRREAT....... it's getting towed to the Nissan dealer tomorrow afternoon if the Service manager cant help me (im like 70 mi away) well it says Bad Ground too. wonder if that has something to do with the battery? id Doubt it'd Crank like it does though. but Ill check the ECU grounds.
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. she Over reacts. but trying to do something Nice and it blows up in your face really sucks
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.yeah, whats up with this 8 gauge Ground Strap. how Crappy is that? it feels Super weak and Flimsy. I might Grab some of my 4 gauge OFC Amp cable to use here and make a New ground strap,
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 really hope so
I will post a short video of how it should shift.


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