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JamesRich

Gen 2 hangs in 2nd gear too long

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This may be normal but it is annoying. My 2014 shifts normal from 1st to second, then hangs a little too long before 2nd to 3rd, then shifts normal through all the other gears. It would accelerate better, with less throttle, if it shifted at the same rpms as the other gears. Anyone else experiencing this? It's done it since I got the vehicle. Possibly reset the module for the trans with forscan?

James

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I would definitely try reseting the module.  But it may be an indication of another problem...

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The transmission control module may be just responding to the accelerator pedal. There's a sensor which sends information to the computer, and maybe that's the issue.  The computer thinks that your foot is heavy on the pedal.  At freeway speed, my car will downshift 2 gears as RPM soars over 4,000.  In my case, I admit that my foot is a little heavy.  Is your foot heavy?

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Yea my foot is a lot heavy at times, I already found the 104 mph speed limiter. I'm impressed by the acceleration of this little motor, no problem passing when I want to. Under hard acceleration it shifts through all the gears the same, it's just when normal driving where it hangs. If I give it a set amount of throttle and hold it, it should shift each gear around the same rpms. I'll try resetting the module when I get a chance and see if that helps. If not I'll just live with it. Just wondering if others noticed this.

James

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Hanging 2-3 was one of the symptoms (along with a bunch of other harsh shifts) when I had to have my trans rebuilt at 62k.  It was still there, though less so, even after the rebuild.  I haven't heard of anyone having satisfaction after resetting the adaptations, but it's free to try if you have the tools.  

 

Something that seems like snake oil is to try running premium fuel for a couple of tanks.  I laughed when I first heard this, but here in modern times when the engine knows the tranny's bidness and the tranny knows the engine's bidness and they both share the same computer anyway... it turns out there is an effect.  The engine adapts its ignition timing for the fuel octane and the tranny for some reason knows about the engine timing.  At any rate, I feel (subjectively) that the shift points have moved down a little since I started running 91 octane a few tanks ago.

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How many miles on your 2014?  Did you buy it new?  If you don't know it's maintenance history and you've got 50K on it or more I would be seriously thinking about changing the trans fluid  -  Unless you have a professional flush it for you, it's not easy to get a 100% exchange (well, it's actually impossible to get a 100% exchange) just by draining it and refilling it because more of the fluid is trapped in the torque converter than is available in the transmission to drain, but . . . . if you buy 12 or 14 quarts and drain it 3 or 4 times it is possible to get better than a 90% change to all new fluid.  These 6F35 gearboxes are hard on their fluid and if you're at all hard on the vehicle (the way you use it and drive it) then there are plenty of owners who have had to have transmissions rebuilt long before 100K miles.  I did a 4 part drain and refill on my 2014's trans at 25K and I'm going to do it every 25K and hopefully save myself $3K or so by not needing to have the trans rebuilt

 

Don

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