Question about 2001 Ford Escape

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Emision light is on rev drop suddenly from 800 to 500 and surges up and down whilst idling when in drive at traffic lights Is it sparkplugs , thotle modual or engine management computer

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Need to put scanner or code reader on it ,to check for codes,before you can proceed. Not a guessing game.

Posted on May 02, 2010

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