Transmission thump/clunk

[UnlivedAttack]

Just got my GT500 two days ago and noticed a rather rough downshift from 3rd to 2nd gear when coming to a stop. Makes a smooth stop hard to do as there is a jerk.

Also noticed that in certain situation upshifts are sometimes "clunky" and not smooth. I can hear and feel under the car some jerk movement. Not too bad, but noticable and just "doesn't feel right".

Any other GT500 owners experiencing this?

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[gfcobra04]

Not sure if it’s normal however the transmission does have a learning curve to how you drive. Try putting a few miles on the car and see if that help.

 

[Jmeo]

The thing is, most of us really have no experience with a DCT, so who really knows what is normal. vs not normal? I have never been in a DCT car before, I sometimes think something is weird, but I have no basis to know. I have zero complaints though. I agree with the above statement, get some more miles logged and see what happens as the car learns how you drive.

Jaime

 

[Go Fast !]

I can’t say for sure if your transmission is operating perfectly but having own a GTR with a DCT for years & the transmission made tons of noises. Clunks, thumps ..... after consulting form than & other owns telling me not to worry got use to it. I’ve noticed some very similar sounds.

 

[Go Fast !]

I also think over time it/I learned to work together. Than I had engine & trans built to 1000hp & it felt like a violent race car that my wife would no longer drive or ride in. Lesson learned , maybe ?

 

[kilobravo]

Excellent point, Jaime and one I hadn't truly considered. All we can "know" is what others are experiencing to see if it's different from our own.

I have had some, maybe "slightly abrupt" downshifts but have yet to hear or feel any thumps or thunks going in either direction.

And Duncan's remarks seem to indicate noise in a DCT isn't unusual, at least in GTR's.

 

[Deviruchi]

This is my 2nd DCT car and I have noticed the same thing, definitely a "blip" and small jerk as the GT500 slows down in the gears you are talking about.

My S4 did the exact same thing when it was in "sport" mode, so I am 100% not concerned and am simply enjoying the throttle blips. Little reminder about what this monster really is.

 

[kilobravo]

Thanks, Dev, I think the odds are that there is nothing wrong but boy do I ever like to hear the darn thing downshift on its own...just too dang cool!

 

[V00D00]

Sport mode is the most comfortable ive found. Also, if u drive the same every day, it will learn and adjust to.you, but if u drive differently, it seemes to not be ready for the aggressive vs defensive type driving change. I think thats when most of the sounds occur

 

[chill66]

Sport mode is the most comfortable ive found. Also, if u drive the same every day, it will learn and adjust to.you, but if u drive differently, it seemes to not be ready for the aggressive vs defensive type driving change. I think thats when most of the sounds occur

I have noticed this same behavior. I go longish periods of time driving the car like a decent human being. Then, I surprise it and drive it like I stole it and it takes some time to re-adjust. I think the solution is to always drive it like you stole it. That way...it's just ready. lol!

 

[Strokerswild]

Interesting stuff.

The DCTs in these are the elephant in the room for me as far as ordering one when things turn around. I haven't seen many serious issues on the net so far, and that's a good thing. I'm sure they have their quirks, but quirks are a little different than fatal flaws.

 

[Go Fast !]

I hope you didn't get me wrong . I'm a huge fan of the DCT , no torque converter HP/TQ loss , lightning fast gear changes & keeping your hands on the wheel. Rowing thru the gears can be a pleasure but what most people miss is racers preferred manuals over auto for two main reasons HP/TQ power loss with torque convert & being in right gear at the right time. Sorry , lots of hate coming my way for sure

 

[V00D00]

Interesting stuff.

The DCTs in these are the elephant in the room for me as far as ordering one when things turn around. I haven't seen many serious issues on the net so far, and that's a good thing. I'm sure they have their quirks, but quirks are a little different than fatal flaws.

They are taking a beating, so now flaws yet.

Also, i doubt much time will be spent in auto mode..

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