Mechanics

CAR SHAKING BADLY

1994 Mercury Marquis • V8 •

I have a mercury grand marquis and my car shakes everytime I hit 45mph or higher. An I have alot of pressure in my gas tank. While I am driving it also smells like gas fuel and burning plastic. What could this be?
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Montalvo_samantha
April 4, 2011.




Describe the shaking? And when you say pressure, do you actually mean suction/vacuum? You may have a fuel leak, and maybe something got caught up in your catalytic converter and burns when you drive it?

Tiny
Fixitmr
Apr 4, 2011.
By the shakin it feels like there is a loose tire but thats not what it is. And the pressure sounds like a leaking tire.

Tiny
Montalvo_samantha
Apr 4, 2011.
Can you feel shake in steering wheel? And I assume the pressure you are referring to is when you open gas cap?
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Tiny
Fixitmr
Apr 4, 2011.

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