Question about 2003 Ford Escape

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I have a 2002 ford escape running rough, cylinder 4,6 and 3 has weak spark to much fuel,the catalytic convertor turning cherry red in the front changed everything on it,coils,spark plugs,injectors,front catalytic convertor and idler air control motor. you can smell the fuel coming from the exhaust. and changed intake gasket upper and lower.

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Check engine light on? fuel regulator replaced?

Posted on Mar 17, 2011

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The cherry red is probably due to raw gasoline being burned in the converter. Since the engine isn't running right (and I'm surprised you didn't say the Check Engine light was on), there seems to be some kind of valve timing issue or perhaps a burnt valve that is causing at least one cylinder to not fire and thus expel the fuel/air mixture into the exhaust stream. This can be confirmed with a compression check of the cylinders. If they are all low, then there is a problem with valve timing, possible a jumped belt/chain. If only one cylinder is low, then a burnt or broken valve is more likely.

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