minghos

My 2012 Honda Civic LX has a problem with its transmission, and I was hoping to reach out to the community for advice on how to fix this. SO basically when I drive, the car starts to shake/tremble from side to side and as I keep driving, the shaking eventually goes away. Do you think there is a faulty part I should have replaced, or is there any other advice I can take to have this problem fixed? Please let me know. Thanks.

Colin42

Wheel weight fell off or a bent rim?

ezone

TCC shudder. You've never bothered to properly service the transmission? Do a fluid service NOW with Hondas DW1 fluid.

Wankenstein

OP: TCC shudder explained http://www.agcoauto.com/content/news/p2_articleid/203

Check service manual for ATF fluid change procedure. On older Honda's it's recommended drain and fill only (no machine flushing). I'm not sure about the procedure for a 2012..Ezone most likely knows though.

ezone

Mr. Dong, I think I just read your link for the first time.....and it perfectly describes the symptom for large rear wheel drive Ford/Lincoln/Mercury cars from the mid-1990s LOL

Allow me to add some info
In the early stages of the problem, Hondas can exhibit the shudder much less violently than described in the article, and at a wider range of speeds than the article states because most Hondas that can have the issue can apply the TCC in all forward gears. A common condition for the shudder to occur is shortly after a light throttle gear change, say from gears 2-3 or 3-4, but it can happen at other times too.

I've heard the severity of the shudder described as "did you feel that too, or did I imagine that?", and "jiggling my jowls" (my favorite), and all the way up to "shaking the the dashboard up and down".

The TCC issue can also present itself as a slow repeating slip-stick condition, which may be seen as the tach needle bouncing slightly as the engine RPM changes by 50-200 or so, and without the shudder vibration.

The "NO MACHINES/NO CHEMICALS" recommendation applies to ALL Hondas.

In published literature it's written as "strongly discouraged".

Our procedure is still simply drain it and fill it.
Once for a basic fluid service; thrice or four times if the fluid is severely neglected, deteriorated, or contaminated.

Use of correct Honda DW-1 fluid is also critical, and mandatory for all model year 2011 and newer A/T.





If the problem is ignored long enough, it might end up needing more than just simple fluid services to solve the problem.

Wankenstein

Ezone. Thanks for that info.

NDNV

Sometimes a clogged or faulty EGR valve or clogged EGR ports can cause a shudder trying to maintain a constant speed and can mimic transmission shifting issues FWIW.