nismo-max500

the search function doesnt work for me, otherwise i would use that...
i know this has been asked many times.

whats causing my front vibration while going 70mph+? the wheel shakes and the front just vibrates a lot.

any thoughts?
thanks

BlackMaxdout

unbalanced tires will cause vibrations, but only at higher speeds. Since you have it for 70+ mph, I'd take a look at that first. Maybe you lost a wheel weight, and now one of the tires is off-balance.

surfman21

my car does it too but not untill about 85-90mph...u got nothin to worry about, most of the time its the road surface anyways. The only thing i can suggest is to get your tires re-balanced or do a front end alignment. My dads a mechanic for Saab and when i told him he laughed and said good, "i guess that means you wont be speeding," lol.

nismo-max500

could it be the axles? or anything like that? or would it be just an alignment/tire balance?

thanks for the quick reply's

surfman21

very slim chance...something as simple as running over a pot-hole can throw off your alignment. it's probably your rear tires are out of balance. Usually high speed vibrations come from the rear tires being out of balance. Also make sure that no tire has double weights or too much weight, that is a sign of a tire that has been mounted incorrectly or a bent rim. Rotate the tires front-to-rear. If the vibration moves with the tires, it's either tire balance or a bent rim. my dad said get the tireshop to do a "dymanic" balance and not a "static" balance. the dynamic puts weights on both the inside lip and just inside the spokes ofthe wheel. the static just puts all the weights on the inside lip only. GOOD LUCK!

Maxima880

If rebalancing doesn't help it's usually a tire that's out of round. This has happened to me a number of times, especially when I've bought "budget" tires. The trick is finding the bad one. You can have someone drive your car fast on a smooth stretch of road while you hang out the windows looking at each tire. It'll be easy to see which one is jumping around more than the others. A more scientific approach is to measure. You can raise each tire so you can spin it. Set a jackstand or something near the tire where you can balance a straightedge or a rod on the stand as a reference point and position it to where it just nearly touches the tires contact surface. Spin the tire and note the difference between the highest contact point to the lowest contact point and work your way across the width of the tire's running surface. An out of round tire will be pretty obvious, usually a difference >1/8". Hope this helps.

nismo-max500

hey, thanks guys i hope its something simple like this. It should be time to get new tires anyways so hopefully i can check that out.

dgeesaman

iTrader: (10)

Have them also verify that none of the wheels are bent. My fiancee's car has a bent rim and we just had new tires put on it, hoping the vibration would go away. It didn't, and we had to make a separate trip to have them diagnose the bent wheel, and now another trip to have them switch the tire to the new wheel. Not to mention the shaking wheel has chewed up the new tire ALREADY within 500mi.

DAve

Stuntin' 101

truth be told.. i could be for a hundered different reasons.. start with the simple stuff and work your way up..