Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN







'94 Buick LeSabre front-end Vibration


  Email This Post



Slickshades99
New User


Mar 15, 2010, 1:53 AM

Post #1 of 6 (5339 views)
Shortcut
'94 Buick LeSabre front-end Vibration Sign In

Hi all,

I have a 1994 Buick LeSabre Custom with a 3800 V6 and 120k miles. My problem is a vibration that is coming from the front-end. A little more specific, the front driver side. I have new tires and of course they were balanced on the wheel before they were mounted. I had the vibration before I got the new tires.

The vibration is slight but noticeable when I am up to highway speeds (55 - 65 mph) but gets worse when I apply the brakes. I am thinking the rotors may be warped because I have had them machined once and I have braked hard a couple times. They might have got too hot and warped. Could they be warped enough to where they vibrate just from high-speed rotation?

I also thought about the wheel bearing assembly but wouldn't I hear a roaring noise if that was going bad?

The CV axles don't clunk or make noise and the boots are dry and far as I can tell crack free.

I haven't yet checked any chassis pieces for wear or damage, that is on my list though. I am spending my spring break doctoring my car :-/

Any feedback would be much appreciated.
1994 Buick Lesabre Custom
Several years auto parts experience


Tom Greenleaf
Ultimate Carjunky / Moderator


Mar 15, 2010, 4:39 AM

Post #2 of 6 (4809 views)
Shortcut
Re: '94 Buick LeSabre front-end Vibration [In reply to] Sign In

Thoughts on that:

Brake could be the issue. 1. If rotor is that warped it would shake a bit or more when applied. Also - rust can build up between rotor and hub such that rotor can't set true to hub. Spin wheel while hoisted and watch rim for trueness. If off, rotate/swap with a good one and see if problem follows wheel or location. If known good rim is untrue at the suspect location brake hub, bearing issue (they usually make noise first but not a promise on that) should be fixed, replaced,

T
_________________________________________
Long retired now


Slickshades99
New User


Mar 23, 2010, 4:22 PM

Post #3 of 6 (4227 views)
Shortcut
Re: '94 Buick LeSabre front-end Vibration [In reply to] Sign In

Thanks for the advice.

I did go out, jacked it up, and took the wheel off to see if I could find anything strange.

I did, however, grab the wheel while the car was up and shake it. The steering was locked into place. The wheel and rotor moved a little when I did this. The noise it made sounded akin to the thumping noise I hear going down the road. Makes me wonder about the bearing.

I grabbed a wheel on the other side and tried to shake it....wouldn't budge.

Also, the holes on my rotor were nearly a 1/4" bigger than the wheel studs. There's something not right about that to me.

I am just trying to pinpoint this problem because I don't want it to get worse. I am also trying to get my car to last me through the rest of college.
Unimpressed
1994 Buick Lesabre Custom
Several years auto parts experience


Tom Greenleaf
Ultimate Carjunky / Moderator


Mar 24, 2010, 2:10 AM

Post #4 of 6 (4221 views)
Shortcut
Re: '94 Buick LeSabre front-end Vibration [In reply to] Sign In

OK: The holes for the studs thru the rotor are bigger but 1/4 inch seems excessive. Know that the lug nuts are actually holding the rotor to the hub/wheel bearing which is a sealed unit. Those bearings don't usually show freeplay so much as make noise like growling, roughness on turns to begin with but certainly can fail beyond that.

You need to take the caliper off to remove the rotor and a bracket on some to clear out debris if any that could be in between hub and rotor if that's the issue at all. It's common if rusty and will allow wobble like an untrue wheel which it becomes and tire can wear into that pattern if not too noticeable AND can give a false sense that wheel lugs are actually tightened enough.

Checking front end parts is a procedure of what can move while hoisted from what. When in doubt get help to verify parts are safe. There's bearing, ball joint, out and inner tie rods and the strut. Imperfections of the wheel and tire will be exacerbated by worn parts/bad parts and those can cause the imperfections of the tire.

This is safety stuff so don't be afraid to get some hands on help when unsure how to test or check items out,

T
_________________________________________
Long retired now


Slickshades99
New User


Apr 8, 2010, 5:30 PM

Post #5 of 6 (4186 views)
Shortcut
Re: '94 Buick LeSabre front-end Vibration [In reply to] Sign In

I've been too poor and too busy to get any work done lately. Plus, I am still doing some research on the matter. It didn't occur to me to get on YouTube and look up some of the symptoms I am having with my car. It would have been helpful with my last post.

This is what the affected wheel does with me:

http://www.youtube.com/watch?v=Cp6F1YoDqMQ

Mine is not that bad but it is loose.

I am job searching for the summer. I have an interview with AutoZone Saturday. I am going to feel weird not working at my beloved NAPA but the hours are better (if I get to work there).

I am going to save up and go home to where I know some trustworthy folks at a shop and get a hands on professional opinion...and possibly a new wheel bearing assembly.

1994 Buick Lesabre Custom
Several years auto parts experience


Tom Greenleaf
Ultimate Carjunky / Moderator


Apr 8, 2010, 10:00 PM

Post #6 of 6 (4180 views)
Shortcut
Re: '94 Buick LeSabre front-end Vibration [In reply to] Sign In

I don't necessarily agree with that video's suggestions or completeness. A wheel bearing on this type shouldn't have free-play at all or would be about to fall off! One (IMO) doesn't mean the other has to be replaced either as suggested there but checking it would be in order.

By the time a wheel bearing (hub assembly on this car) is that bad it's dangerous. Most wheel bearings are a noise first made worse when steering one way vs the other and not so much a vibration but noise.

Vibration could be anything that moves, tire, wheel brake parts dragging or warped - other surprises possible. Worn joints in front end don't make vibrations alone but do make them or any feel that much worse. It's not prudent to wait to find out exactly what that is.

Good luck with the job hunt,

T
_________________________________________
Long retired now




'94 Buick LeSabre front-end Vibration


  Email This Post
 
 






Latest Forum Post
Video of noise: https://www.youtube.com/watch?v=Ynh1XsDzKCA thanks
Glad I found this site - now I just hope that you can help me. The first thing i...
I was driving for about 6 hours yesterday from CT to PA. Close to the end of my ...
1988 Year of vehicle GMC Make of vehicl...
My car has a no start no crank issue. The starter gets replaced and it will work...
I have 123K miles on my echo and I have never had my rear brakes serviced. I wan...

Feed Button


Used Car Search
Used Car Price Ranges:
Under $5,000
$20,000
$35,000

$10,000
$25,000
$40,000
$15,000
$30,000
$45,000
Over $45,000
Search used Cars By Manufacturers:
Used Acura
Used Audi
Used BMW
Used Buick
Used Cadillac
Used Chevrolet
Used Chrysler
Used Dodge
Used FIAT
Used Ford
Used GMC

Used Honda
Used Hyundai
Used Infiniti
Used Jaguar
Used Jeep
Used Kia
Used Land Rover
Used Lexus
Used Lincoln
Used Mazda
Used Mercedes-Benz

Used MINI
Used Mitsubishi
Used Nissan
Used Porsche
Used Saab
Used Scion
Used Subaru
Used Suzuki
Used Toyota
Used Volkswagon
Used Volvo
2010 Honda Civic
$15,770
2004 Jeep
$8,991
2012 Mustang
$22,990
1997 Honda Cr-V
$4,490
2010 Toyota Prius
$17,496
2010 BMW 328
$26,980




Automotive Forum Categories
Automotive Repair
Auto Body Repair and Refinishing
AC Auto Repair Help Forum
Automotive Wiring and Electrical

Auto Insurance and Car Financing
Automotive World
Brake Systems
Car Stereo Repair Advice
Car Troubleshooting
Engine and Car Noises
Engine Fault Codes
Engine Troubleshooting
Exhaust System Repair

Steering and Suspension
Tricks of the Trade
General Discussions
Car Shows and Events
The Bargin Bin
Motor Vehicle Inspection
Car Care Tips
Traffic Ticket Help
Car Racing

Gasoline, Motor Oils, Concept Cars
Remote Control Cars and Vehicles
Truck Repair
Truck Repair Advice


Truck Engine Repair
Truck Suspension Repair
Motorcycle Repair
Motorcycle and ATV Repairs

Motorcycle Body Repair
Motorcycle Clutch Repair
Motorcycle Engine Repair
Motorcycle Seat Repair
Car Forum Posts - Sitemap


Search for (options) Privacy