1998 Mercury Marquis shaking

Try rotating the tires front to rear and see if it changes it, if so you know it is the tires. An Alignment wont usually make the wheel saw back and forth like that, incorrect alignment causes pulling usually. Does it do it all of the time or just when you are on the brakes? if when braking, you haev warped rotors adn they need to remachined/replaced depending on their condition

[quote:aebe6aa77d="cody1966"]Shakes or Wobbles problem
1998 Mercury Marquis V8 Two Wheel Drive Automatic 68,000 miles

My steering wheel shakes back and forth and the car vibrates. I have new balanced tires, the car is aligned and the shops say its the tires and the tire guys say it the alignment. The car is in mint condition. It was hit by anohter car in the driver rear door a year ago and was fixed. Could that have anything to do with the shaking?[/quote:aebe6aa77d] Thanks, I did that - I tried all varations, front to back - still getting the same issue - Is it possible just to have bad tires? I have had two of them replaced.

[quote:9376b82967="2CarPro Jack"]Try rotating the tires front to rear and see if it changes it, if so you know it is the tires. An Alignment wont usually make the wheel saw back and forth like that, incorrect alignment causes pulling usually. Does it do it all of the time or just when you are on the brakes? if when braking, you haev warped rotors adn they need to remachined/replaced depending on their condition[/quote:9376b82967] It does it all the time, I did have the brakes checked also.

so you have replaced 2 of the tires and it still does it . even if they are on the front? If so something is wrong with the car.If a tire is bad enough to make a car shake, you can usually see it by spinning it

[quote:d3a5a9c1e9="2CarPro Jack"]so you have replaced 2 of the tires and it still does it . even if they are on the front? If so something is wrong with the car.If a tire is bad enough to make a car shake, you can usually see it by spinning it[/quote:d3a5a9c1e9]That is what I think, any suggestions?

I fht efront end has something bad enough to make it shake, you would think the alignment guy would have caught it, have another shop look at it, or lift and support front end an dsee if you can find anything loose