Persistant Vibration - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-07-2004, 01:33 AM   #1
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Default Persistant Vibration

For those who don't know I have a problem with vibration on the highway with the 97'. I've had the front end looked over by two shops and an allinement. So I and the first shop decided it was caused by my tires so I forked out $500 for brand new BF Goody TA'* and what do you know- it still vibrates. My dad says that every front wheel drive car hes driven shakes. Please tell me this isn't true because its driving me nuts. Please list all the possible reasons for my car to vibrate. Thanks.
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Old 11-07-2004, 01:35 AM   #2
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You're sitting on my pager.

Kidding. Warped brake rotors? They'll vibrate a little even without touching the brakes. Could be a bad hub/bearing assembly as well.
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Old 11-07-2004, 01:39 AM   #3
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Deposits on the Cv'*? Blown engine/tranny mounts? rough running? unbalanced rotating mass.
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Old 11-07-2004, 01:45 AM   #4
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Roters will make the car shake even without braking? I never knew that. I don't think they are warped already because new ones were put on just before I bought the car so <2000 miles. Tell me more about the hub/bearing assembly. Could that have been easily overlooked during the front end ckeck and alinement? I'm going back tomarrow so I kinda want it pinned down so I don't have to fork out big bucks to have them guess. I'd like to tell them the problem and have them fix it.
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Old 11-07-2004, 08:54 AM   #5
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Wheel Bearings

In my household we have replaced two, and a third will be replaced this week. One on the bonneville, and both will be new within 10,000 miles this week.

It seems like you hear them first. Then when they get bad you can feel it. When they are just starting to go, you can easily mistaken the noise for a slight increase in tire noise. If it is a bearing, then when you go around a curve it will sound A LOT worse. So if the right side is going, when you go around a left hand curve it will sound real bad.

Unfortunately it is a costly fix too. The ABS sensor is in the bearing, so it will cost about $300-500 at a shop.
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Old 11-07-2004, 11:06 AM   #6
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I had a wheel bearing go out on my 93'. It didn't affect the ride much, just made an annoying hum. About the CV joints, thats what my friend had go bad on his car and it shook like crazy. When they got fixed it became totally smooth. My question is couldn't the shop notice this when they where inspecting the front end?
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Old 11-07-2004, 01:38 PM   #7
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Have an axle going on a 97 se...also have the vibration..
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Old 11-07-2004, 01:42 PM   #8
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Does the vibration change pitch, frequency, or amplitude with vehicle speed?
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Old 11-07-2004, 01:57 PM   #9
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The axle is super noisy around 25 mph...not much vibration at that speed though...it quiets down over 35mph...the vibration sets in around 70mph...also sounds like a bit of wheel bearing noise around 60mph
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Old 11-07-2004, 02:03 PM   #10
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I also have to add this experience: The shop that i work at has a 94 dodge caravan...axles were going on it...so they had an axle shop replace both front axles...a little while after this the tranny went...had that rebuilt by a different shop...well it turns out the thing had a bad vibration when all the work was done...they thought it was the tranny...but i did a little research on the internet..turns out it was the axles...they installed the wrong ones...in fact they were the same used on my 91 caravan that i had at that time....which also had a vibration and a bad axle...Turns out the axles were to short for the vehicle....stretching out the cv joints at certain speeds...we had it jacked up....looking at the axles at speed...they were really whipping around! I suppose a worn cv joint will do the same thing!
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