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Question Details Asked:Dec 03, 2009 - 05:55 PMStatus:Closed
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Voted Best Answer
Usually that's a fuel starvation problem that can be caused by a clogged fuel filter, weak fuel pump or a vacuum leak in the intake manifold. Do you have a check engine light on?
If it slows down while driving at highway speed, it can be that the catalytic convertor has become clogged and back pressure causes power to be reduced. The clogging can be due to driving with a bad oxygen sensor or just very high mileage.
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