drdarell

I noticed that I seemed to be getting a vibration when I took off on a turn a little brisk... Initially I thought maybe I was having an issue with the all wheel drive accelerating around a corner, but then I checked just sitting still in neutral and the engine starts to vibrate at 3K RPM. I've got 32K on it and while I find it hard to believe that the plugs could be going bad I guess it could be a plug not firing consistently at that RPM... The power seems good and it does smooth back out at higher RPM so it would be weird that a plug would do that... Also any idea why the plugs are set to be changed at 35K?? My lexus is 100K, seems like plugs can certainly take a bit more mileage...

I need to put my monitor on it and see if I have any errors.

Thanks!

Jibsymalone

What engine do you have?

TinyElviss

Assuming you have the 4.0T, searching this forum for the dreaded 1k/3k rpm vibration will probably answer your questions.

virtualrc

Like TinyElvis alluded to, If you have the 4.0 take a gander over here... https://www.google.com/search?q=site...hrome&ie=UTF-8

MP4.2+6.0

+3.

Jibsymalone

That's where I was heading too.... +4

KevinGary

drdarell

4.0

drdarell

Thanks everyone! I searched on 3K RPM vibration and never saw anything... maybe the RPM threw it off?? or missing the 1K. I remember seeing this on the 2014, and I thought I was safe with the 2015, I guess not. Into the dealer I go...

Waterflow

I had the same vibration at 1k and 3k 32K miles 2015 A8L 2015 4.0T. Exhaust pipe replace fixed the issue. In my case everything was covered by warranty.