I have roughly 48000 miles on my evo 8 and just a few days ago i started getting a heavy vibration or shutter ONLY when turning while accelerating from a stop, lasting from about 0-10 mph. For example i would not get the shutter if i went straight at a stop sign; but if i were to take a left at a stop sign i would get the heavy vibration.
I have done a search and thought about the noise/problem and i am thinking and hoping it is simply the wheel bearing or simply the clutch going. It could also be the a long list of other problems....transfer case, differential, power steering?

Anyone have any ideas? Again this happens only when starting accerating from a stop WHILE turning; or if i were to be taking a turn at a VERY low rate of speed. (under 10 mph)

 

to further explain the heavy vibration/shutter it sounds and feels like when you try to accelerate from a stop from a higher gear (2nd, 3rd, etc) instead of first.

 

30+ views and not a single answer or guess?! Damn come on evom!

 

Have you done any new mods lately?

 

YES i just recently (about a week before the problem started) had AMS install : HKS 272/272 cams, HKS EVC 5 electronic boost controller, AMS front mount intercooler, 10.5 hotside, intercooler hoses, walboro fuel pump, ARP headstuds, AMS front motor mount, and then they dyno tuned the car

I also have a APS BOV and RS-R turboback, which were on the car before i went down to AMS.

 

crankwalk.
Seriously, jack it up or put it on a lift and check your front axles.

 

Front differential. Launch lately?

 

Did you check your power steering fluid level?

 

Powersteering fluid was just changed by ams along with the fluids in the transfer case, rear diff, and transmission (along with oil). I checked the powersteering fluid when i originally noticed the problem, and it was perfectly fine.
I just need to get it up on a lift and look at the underside; i just wish i knew where to start looking, its hard to tell where the noise is coming from and what is causing it. I already had my neighbor who has a 05 MR check it out and he was thinking i was getting some serious clutch chatter (although i never have before). Think the clutch is dying? I havent done any launching lately or in the last 5000 miles, haha. I have been trying to take it easy considering I am still on the ORIGINAL stock clutch at 48k miles. I have been pushing the car hard on freeway onramps, but no launching and just basically testing the power potential of the car with the new mods.

 

Possibly the CV?

 

sounds like its time for axles, or axle related problems for sure

 

I had the exact same problem and it was my rear diff. causing it. I had put shockproof in my rear diff. (recomended by shep) but I guess the shockproof doesnt have the lubrication properties the lsd needs and after about 1000 miles it vibrated and chattered when making low speed turns from a stop. I drained the fluid and put redline 75w90 in it and after about 10 min. of doing figure 8's it was gone.

If it seems like its coming from the rear then I would either put a 75w90 gear oil or diaqueen in it. Worth a shot?


Here was my thread: I had vibration and chatter.....
https://www.evolutionm.net/forums/sh...d.php?t=209538

 

check those front axles! chances are thats your problem... do you have new tires on it at all?

 

Font motor mount. Or is it more violent then that?

 

Great advice from travman. I had the same issue and it was the rear diff binding up. Rather than drain and refill the fluid I just added some friction modifier and it works like a champ again.