Shaking at High Speeds - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-01-2004, 06:35 PM   #1
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Default Shaking at High Speeds

When going over about 65, there is a vibration in the steering wheel and the entire car seems to just shake. This is just cruising, not accelerating or anything.

So far i Have Gotten all four tires balanced, rotated and an alignment done.

What could be causing the car to vibrate? The Tires are pretty new, so i dont think it would be that... could it be something in my suspension?

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Old 05-01-2004, 06:45 PM   #2
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I had fairly new tires on my car too but to come to find out one had a knot in it. That is what caused my shaking at high speeds.
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Old 05-01-2004, 06:59 PM   #3
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I'm not sure this could be the case though, because I rotated the tires and there is still vibration in the steering wheel. Any other thoughts?
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Old 05-01-2004, 07:33 PM   #4
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I have a slight vibration at higher speeds because of a slighty loose front tie-rod.
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Old 05-01-2004, 08:11 PM   #5
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Definitely check the front end, check your tire pressures, and if both those things are OK, I'd rebalance the wheels/tires.
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Old 05-01-2004, 08:20 PM   #6
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Could be a shifted belt in the tire as well, I was experiencing this problem not long ago, turns out my rotors were shot (got new brakes) and rotated my tires to get the shifted belt tire off the drive wheel.

I can still feel it however its not as bad.

I also rectified the problem with a purchase of 4 new tires. (incoming in 3 weeks)
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Old 05-02-2004, 01:16 AM   #7
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it could also be a wheel bearing that is shot... Just check the front end and see what you can come up with
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Old 05-02-2004, 01:30 AM   #8
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bent rim or wheels not being balanced right
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Old 05-02-2004, 05:22 PM   #9
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Its only at highway speeds that it happens, but sometimes it goes away for a minute, and comes back.

Like I said, the tires were rotated, so i believe it may have something to do with the front end, not anything wheel/tire specific.

When Wheel Bearings are at the end of there life, dont they make a sort of moaning noise when turning?

How can I tell if my front tie rod is loose? Wouldnt this have been noticed when i got an alignment 2k miles ago?
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Old 05-02-2004, 05:50 PM   #10
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A good alignment shop will check your front suspension BEFORE it does an alignment. So, I'll assume, for a moment, that you did go to a reputable place to get your front end aligned and before you got the tires balanced, they checked for things like a dented wheel. I just had my steering rack with the inner and outer tie rod ends replaced and did not have any vibration before that. I also just replaced my right wheel bearing because it was making a considrable amount of noise whenever I went towards the left. But a bad wheel bearing would not make the front end shake at speed. I've had relatively new tire with a belt that slipped(shifted) once and it did cause the front end to shake so I would go with that theory for now.
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