Question about 1999 Ford Taurus

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Rough idle, engine is vibrating and when it is put

Rough idle, engine is vibrating so much that the whole car shakes when not accelerating and when it is put in gear it shifts noticebly. There is now smoke coming out of the exhaust. Today it has been hard to start. I have to keep tapping the gas to get it to actually crank. Diagnostic test said bad O2 sensor. Could it be a flex plate balance weight problem that is causing it to shake so much?

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Possible but highly unlikely. Sounds like a dead miss.

Posted on May 31, 2010

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