Has ANYONE found out the vibration prob?

[nonglossjason]

Cmon i see sooooo many threads about vibration over 65-70 miles an hour and no one has ever mentioned what is caused by it when they find it. PLEASE TELL ME LOL

 

[nonglossjason]

o and yea it makes the steering wheel vibrate constantly

 

[srothfuss]

There are so many different things that can make your car vibrate at high rates of speed. I don't think that there could be one "magic" answer. However, there are some typical areas to investigate to help pinpoint the source of any given vibration

1. Tires that are out of round
2. Tires that are out of balance
3. Rims that are not mounted properly (loose lug nuts)
4. Rear axle bushings that are too worn out
5. Bad u-joints
6. Steel drive shaft that is no longer 'true'
7. Any driveshaft that isn't balanced
8. Bad / loose / missing transmission mounts & motor mounts
9. Bad bushings in the a-arms
10. Ball joints on the verge of failure
11. Tie rod ends that are froozen
12. Brake calipers that no longer slide
13. Bad bearings in the hub
14. Bad shocks or struts
15. Car out of alingment
16. Flat tire

Because this list contains so many different things, that is why it would be hard to pinpoint one single source for multiple failure modes.

 

[EMW150]

A common problem is U-joints. I've also heard some say about a packing in the driveshaft that shrinks and moves around causing a balance problem. I've never cut one apart so I don't know if that's true or not.

 

[maverick0716]

I find most people that have wheel balance problems, complain about a vibration at highway speeds.....a lot of the time they don't feel anything before that.

 

[EMW150]

Oh yeah just noticed you said in the steering wheel. Probably a tire either a shifted belt or just out of balance. I thought you meant the vibrating shifter problem so many have.

 

[JBeezy53]

Could be something as simple as loose driveshaft bolts, thats what it was for me.

 

[Foxfan88]

there stories of gear swap causing vibrations.
higher gear ratios cause the DS to spins MUCH MUCH faster than it ever had with stock gears. which will cause vibration. each DS will vibrate at a certain speed. which wont have to be worried about with a stock setup bc the DS will never reach at speed where it will vibrate, but a gear swap will let it...


common ones are tire balance and U-joints.

 

[iwashmycar]

mine as been doin that too...has gears, but i've gone through a couple sets of rims/tires/balances/alignments....and still it vibrates...

...shortly i will be taking the DS off to check the joints. I also think it could be the bushings on the A-arms but im not certain....if U joints fix it i will reply!!!

-adam

 

[Shakerhood]

Front Wheel Bearings need repacked and adjusted.

 

[88 Fox GT]

Could be something as simple as loose driveshaft bolts, thats what it was for me.

After I bought mine, I notice it always had some bad vibration on decel. One night I was coming home after doing about 90-100 or so and the vibration was getting horrible and I heard clunk-clunk-clunk as I drove up into my garage. Turns out the driveshaft bolts were about to fall completely out!

Definitely check out those bolts.

 

[MYSTICSVT]

Mine picked up a vibe after my 3.73 swap. An FMS aluminum driveshaft cured it. Silky smooth all the way into triple digits.

 

[BadAndy]

YES i just did checked the harmonic balancer it was good, turned out my front universal joint was bad, bearings ground to dust dxxxx only got 170.000 out of it

 

[87Mustang351]

i haveing bad viberation to mostly in the rear b4 when i took it home it wasnty viberation but i changed some things and now it viberates one guy told me could be exuahst hitting my body..my exhaust is loose but man this hits my tranny and shifter really hard and is a bad viberation...im stumped i put 4 new tires balanced 2 new drive shaft universals tryed another driveshaft new polly urathane tranny mount....and i haver a inner tie rod gone on the driver side so im gettitng that and a line up done monday hopefully it will cure it

 

[CochinoFilipino]

I thought the stock HO roller cams had problems till 87 or so. I read that in one of my books, too bad I don't remember which one. I'm sure the gurus here will correct or confirm.

 

[Dark Knight]

Had a bad vibration in mine..fan clutch had locked up.. thought it was the u-joints. Really didnt notice it until 35mph or so.

 

[joeyd0730]

a problem i ran into in the past was 1 5/8 equal length headers running agains the steering shaft.

 

[87Mustang351]

mines in the back of my car and the tranny when i hit 120 it shakes bad then iut sur passes it till about 160 then its a weird viberation noise

 

[dustang31]

+1 for the loose driveshaft bolts.....
i guess us supposed to re-tighten them after u drive a bit

 

[BadAndy]

you have to realy tighten the drive shaft bolts, look how tight the fact has them, I put wd-40 on them and smack the wrench with a big hammer to get them tight enough