Question about 2005 Mercury Montego

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Rpm won't go above 2500 rmp. no check engine light is on. I ran a system check and everything was ok

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Hi! There could be a problem on the MAF (mass air flow) sensor. THe MAF has big contribution on engine performance specially the idling issues. The MAF is not always detected by system check. Once replaced you'll be good. Hope this helps and have a good one!

Posted on Jun 10, 2010

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