I have a 94 taurus sedan that my wife just broke a rear sway bar bolt on
(one with the grommets on left side). Would this cause the whole car to
vibrate and shake between 55mph and 70mph? I checked the whole front end
and all looks ok. She said she wacked a pot-crater (meaning the mother of
all pot holes)pulling out of a gas station and it caused the rear of the car
to bottom out.
it could be the sway bar, or going through a pot hole like that it could
be anything, like the rear support for the wheels, the tire rods,
anything, including a tire that has a bad belt in it, either before the
pot hole or after if(which can cause the band to break inside the
tire).. this would give you vibration at high speeds, even low speeds...
Your car would shake or vibrate no matter how fast you're going when the
tires are unbalanced. I would suggest that you check the sway bars and the
wheel weights on all 4 tires. Check for any missing wheel weight. It's
unlikely that a wheel weight would fall off while running through potholes,
but it can happen. If you can't seem to find the problem, I would also
suggest that you take the car to a garage or a dealer for service.
I had a strut link on the rear come loose once after a strut change.
The whole back of the car shook, but this was at lower speed.
Now, i did have a higher speed vibration once. Though it might have
been the CV joints. What did it turn out to be? A bubble in the tire.
If the tire suffered some trauma, this could be what it is.
If you have a spare to swap on each wheel, you might try it.
One at a time. And inspect each removed tire carefully.
I had this happen both on my taurus and my truck. So, i would not
say its uncommon.
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