Question about Buick LeSabre

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Car starts shaking 40 mph

As soon as hit 41 it shakes real bad

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  • 365 Answers

Bad wheel bearing or out of balance wheel? Might bring it by an alignment shop and have them test drive it to pin point the problem.

Posted on Oct 14, 2013

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Posted on Jan 02, 2017

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SOURCE: My 03 Wrangler shakes only at 45 mph

My Death Wobble started immediately after I installed a set of Coil Spring Spacers (to lift 1.75 inches). Turned out, the DW was because while changing the height, I also lowered the CASTER angle in the front end. So, to fix it, I could have purchased a set of eccentric bolts for $50+. Instead I went out and purchased a piece of 1.5 inch flat bar for $10 from OSH. I cut out 4 1.5 inch squares. Then i drilled 7/16 inch holes centerline, but close to one side (in exactly the same place) on all for squares. I then removed the lower control arm bolts, nuts and washers. I installed these square offset washers I made so the front axle would be pushed forward (to increase the Caster angle). The toe setting changed a bit, so I reset them to about 1/8 inch toe in. After driving my Jeep, I noticed there is no more DW. The steering wheel was off center, but after 3 attempts, I have that perfectly centered. I have every intension of having the alignment checked, but not till after I find the new tires I want. If anyone is interested, I can draw out and photograph the cure and send it to you. My e-mail is bb62471(at)yahoo(dot)com.

Posted on Feb 13, 2009

  • 636 Answers

SOURCE: my front end shakes when i hit a bump at 50 mph, the front tires

could be a bent rim ? have you changed the universal joints? how about the tie rods and stabilizer bar

Posted on Aug 13, 2009

Testimonial: "thank you very much, i will do this first thing. i have had several people look at it , and of course they have told me it was not the tie rods,i knew"

  • 1 Answer

SOURCE: At 40 mph the car starts to shake. It last to 5o

I have this same car with exactly the same problem. Begins shaking at 40mph and stops shaking as soon as you let off the gas, but then begins again as soon as you press on the gas and smooths out as you get over 50. And the shaking is not felt through the steering wheel. Solution: Replace the transmission mounts. There are two of them, one on each side mounted on the frame right next to the shock strut. There is also a front and rear engine mount, but I replaced the two as described and shaking is gone.

Posted on Dec 13, 2009

  • 1 Answer

SOURCE: 2006 dodge ram front end shakes when hitting a

2006 ram 2500 mega cab. every time I hit any bump my front end wobbles up and down.. any solutions?

Posted on Feb 16, 2010

ZJLimited
  • 17970 Answers

SOURCE: car suddenly started shaking malfunction indicator lamp displayed

When the light comes on, one or more diagnostic trouble codes (DTC) are stored in the engine control module. These DTCs remain even if the light goes out. To address a Check Engine Light problem, the DTCs are retrieved and the appropriate troubleshooting information is followed in order to determine the problem.

The four most common Check Engine Light scenarios and what to do:
* The Check Engine Light turns on and off or flickers.
If the Check Engine Light comes on in the city but goes off on the freeway, then the fault is present during city driving conditions. Pay attention to whether or not the vehicle runs or drives any differently when the Check Engine Light illuminates. If vehicle performance does change, drive the car as little as possible and take it to be checked by a service professional as soon as possible. If there is no change in vehicle performance, you can drive home, but have it inspected as soon as possible. In this condition, you run a risk of the vehicle dying or not starting.

* The Check Engine Light comes on and stays on.
If the Check Engine Light illuminates constantly during driving with no noticeable driving or performance problems, there is a permanent fault in the emission control system. When this happens, the computer that controls the emission system usually has a backup program that runs while the fault is present. (These backup programs are often referred to as "limp home" mode programs.) You should get the vehicle serviced as soon as possible, but in most cases, the vehicle will continue to operate, though you run a risk of it dying or not starting.

* The Check Engine Light illuminates, stays on, and there are performance problems.
This means that a vital component of your emission control and engine management system has a serious problem. It usually involves a component or system needed for the vehicle to run at all. In most cases, drive the vehicle as little as possible. In many cases, the vehicle is not safe to drive at all -it could stop or stall out at any moment. It is best to pull over to a safe place and have the vehicle towed to an automotive diagnostician for a thorough inspection and repair.

* The Check Engine Light light comes on and blinks in a steady pattern while driving.
Don't confuse this steady pulsing of the Check Engine Light light (usually one or more flashes per second) with a flicker (see above). The Check Engine Light may stay on steadily or it may flash when the vehicle is accelerated. This is very serious. There is a severe failure of the emission control system that is causing the engine to misfire to the point that the catalytic converter is damaged each time the Check Engine Light flashes. It may mean that the catalytic converter is overheating to the point that it will glow red or, in extreme cases, start a fire on the underside of the vehicle. Immediately pull over to a safe place and have your vehicle towed to an automotive diagnostician for repair. Vehicles can be severely damaged and even destroyed by fire if this condition is ignored for too long.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Posted on Jun 18, 2012

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1 Answer

Starts to shake 40 mph


balance the wheels????

Dec 07, 2015 | Cars & Trucks

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I have a 1995 ford f150 4x4 and it wobbles around 40 mph but its not bad. Its the same when im slowing down as soon as I hit 40mpg it shakes what could be the issue?


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My miata shakes at 40 mph


Although you didn't say if it feels like the shaking is coming from a wheel, it sounds to me like you have a bad tire even though they are new. Take it back to where you got the tires and have them take a look. If they can't see anything, ask them to take it for spin.

Jul 25, 2012 | 2002 Mazda Miata

1 Answer

My front end shakes when i hit a bump at 50 mph, the front tires


could be a bent rim ? have you changed the universal joints? how about the tie rods and stabilizer bar

Aug 13, 2009 | 2006 Jeep Wrangler

3 Answers

At 40 mph the car starts to shake. It last to 5o


I have this same car with exactly the same problem. Begins shaking at 40mph and stops shaking as soon as you let off the gas, but then begins again as soon as you press on the gas and smooths out as you get over 50. And the shaking is not felt through the steering wheel. Solution: Replace the transmission mounts. There are two of them, one on each side mounted on the frame right next to the shock strut. There is also a front and rear engine mount, but I replaced the two as described and shaking is gone.

Jun 29, 2009 | 2000 Buick LeSabre

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98 mazda millenia shaking front end at 40 mph?? any clues??


try the simple solution first put your front tires on back and back tires on front. check your air pressure then take it for a drive and see if any thing has changed. if so you probably have a badly worn tire. if no change have someone move the steering wheel back and forth wyle you are under the fornt of the car (dont forget to chalk the wheels) and see if any of your steering components are loose/moving. if nothing is loose and your tires are good try to bounce the front end. if you can really get the front of the car going up and down pretty easy you havce bad struts/shocks.

Apr 15, 2009 | 2001 Mazda Millenia

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1975 cj5 jeep starts to shake badly at about 40 mph.


I had the exact same same issue with my 03 sahara at the exact same speed and it was a huge build up of dirt in the rims (live on gravel road)that may be the issue or you may have a badly balanced tire or a bad front end part(s) ball joint tie rod etc......
hope this helps!

Mar 09, 2009 | 1983 Jeep CJ5

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