Question about 2001 Ford Expedition

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I have had a small tapping noise in the engine for a while. yesterday a loud bang now its a very loud putting/banging noise. still runs but something very wrong. you can smell the odor of gasoline coming from the engine. somebody told me might be the timing belt? its a 2001 ford expedition with a 4.6L engine. help?

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It sounds like you had either mild lifter lash or a plug wasn't gapped properly at first which has now gotten even worse. The gas smell that you have may be caused by a plug not firing due to misgap or a lifter that isn't functioning due to breakage. I recommend parking your vehicle as soon as possible. Have it towed to a dealer or trusted repair shop if at all possible. More use of the vehicle may cause irrepairable/ more costly damage.

Posted on Jul 13, 2009

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Posted on Jan 02, 2017

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