Question about 1990 Ford F150

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My Ford F-150 vibrates significantly when I accelerate. I can't find anything wrong with the suspension or frame/structure of the truck. Any good ideas?

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There may be a severe leak in the exhaust manifold. The pressure release from the engine works like a pulse and it can cause enough vibration. I am not sure if you would be able to run seafoam through your air intake/brake booster system. If you could then it will be so easy to see a leak as it creates huge amount of white smoke.

Posted on Jul 14, 2009


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