vibration is driving me crazy!!!

[WILDACEX187]

so about a month ago my car started to vibrate really bad when going to about 35 mph. went to my boys shop put it on the lift and it seemed that the culprit was the tranny mount. changed it today with a peak performance mount but the vibration is still there and now its worse cuz of the stiff mount. wtf could it be? motor mounts? dunno if the motors mounts are to blame, when parked and i rev it the motor doesnt move. it doesnt move when i turn it on either. the mounts i have are polyurethane filled stock mounts. help pls before i go crazy

[aa87]

Does it matter what gear at 35? Alignment and wheel balance. Check for any loose suspension bolts. Maybe driveshaft as well?

[s13poop]

are your tires balanced?

see any un-even wear along them?

if its the driveshaft then your central bearing bushing might need to be changed

[WILDACEX187]

driveshaft is a one piece aluminum. we tried putting the rear wheels in the front and it was still there. it does not matter wat gear im in. after 35 mph the vibration starts and if im in neutral at or above 35 mph its still there

[sleepy_s13]

mabey one of the rims is bent. This happend to my friends car one of the rims was barely bent, he changed it and the vibration stopped.

[GSXRJJordan]

if it's not rev or gear dependent, then it has to do with your suspension or wheels/tires. When you put the car on a lift, can you move either of the front tires side to side with your hands? Seems to me like if it started suddenly, and occurs at such a low speed (relatively), it's a broken/stripped end on a tie rod/tension rod/etc. Check all the end links, and I bet you'll find it there.

If the vibration is not in the steering wheel, but with the whole car, check the same things in the rear.

[ledzeppelin240]

There are countless threads about vibrations. I work at a dealership and deal with these kind of things daily, but on here it takes 20+ post to come to a conclusion.

-Wheels out of balance, seperated or cupped tires, bent rims, mud, dirt, snow, ice in rims causes the most common vibration.
-Driveshaft center carrier bushing also causes vibrations.
-CV axles can cause vibrations under load or torque, same with severly worn suspension components.
-If it is a problem with the front 2 wheels it will be most noticeable in the steering wheel
-A problem with the rear tires will be most noticeable in the seat of the car, although a problem with the rear tires can also be noticed in the steering wheel.

-Alignment being out will not cause vibrations
-Suspension components worn are usually the last cause of a vibration, but not always.

My .02cents

[WILDACEX187]

i got new front lower control arms last year from pdm racing so its not that. the vibration is not in the steering wheel, its the whole car, the whole car vibrates so much that i cant hear the radio when driving at 50 mph. its like a fast vibration but strong . i will try to put on different wheels and see if that helps, hopefully it'll be that easy. being that the driveshaft is one piece we can rule out the center carrier bushing. any more ideas will be greatly appreciated. oh and the suspension doesnt feel all that bad, i cant take turns at the same speed as i used to. i am in need of an alignment though

[devonkyle77]

i have the exact same problem

[initial_drifter]

does it feel like the car is bogging really hard?

[devonkyle77]

mine does.....

[WILDACEX187]

engine has no hesitation. no bogging at all. engine revs freely. i was told it could be something with the driveshaft . something about the u-joint or yoke. *sigh*

[redsilvia]

Check the bolts that connect the driveshaft to diff. i had a horrid vibration at that speed and it ended up the bolts were loose.

[aa87]

Don't make assumptions that if its new, its not messing up, bad insallation or premature wear on something could occur randomly, just check everything.

Try your stock driveshaft if you have it, if it doesnt help, that you narrow it down even further and diagnose it.

[Sileighty_85]

Are you using the bolt on style wheel spacers? my buddy had a similar prob turnd out his Rear wheel spacer nuts were loose

[WILDACEX187]

no spacers, will chech shaft thanx

[WILDACEX187]

the bolts on the yoke were all lose. my friend was surprised they didnt fall off. locktight and breaker bar and not the car feels awesome. thanx guys everybody gets posi rep

[longdy]

hey man did you check the subfram bushings????... yea man mine felt like the same thing until i got them replaced!... if that isnt the case check to see if there isnt any grinding on the tranny it self!..

good luck man

[GSXRJJordan]

glad we got ya straightened out ~ usually a driveshaft problem is speed dependent, but I can see how the vibration might be so bad you don't notice it getting worse as you accelerate. Anyhow, this thread turned out to be a good reference for anyone elses "bad vibes" - get it? (sorry, REALLY bad joke =P)

[yokotas13]

Originally Posted by ledzeppelin240

There are countless threads about vibrations. I work at a dealership and deal with these kind of things daily, but on here it takes 20+ post to come to a conclusion.

-Wheels out of balance, seperated or cupped tires, bent rims, mud, dirt, snow, ice in rims causes the most common vibration.
-Driveshaft center carrier bushing also causes vibrations.
-CV axles can cause vibrations under load or torque, same with severly worn suspension components.
-If it is a problem with the front 2 wheels it will be most noticeable in the steering wheel
-A problem with the rear tires will be most noticeable in the seat of the car, although a problem with the rear tires can also be noticed in the steering wheel.

-Alignment being out will not cause vibrations
-Suspension components worn are usually the last cause of a vibration, but not always.

My .02cents

Liar, my front toe is out, and it vibrates liek bitch.

[Kn1ves]

try rotating the tires to see if it has any effect at all

[WILDACEX187]

umm i fixed the problem guys lol thanx

[longdy]

Originally Posted by WILDACEX187

umm i fixed the problem guys lol thanx

lol... thats good that your solved it....

[EFnS13]

hmm... good thing i stumbled upon this thread cuz i have the same problem, but at 55 mph... got new tires, balanced, and even got an alignment and the vibration is still there but not as bad...

i guess i'll take a look at the driveshaft...