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2002 explorer idle shake & no rev

I have a 2002 explorer V6, the service engine light was on and i had a shake when idling,  I changed out the coil pack and that made the service engine light go off and the shake went away for a couple days.  The service engine light came back on and i the idle shake returned.  Then the other day I was drving (about 70 mph) and the car suddenly throttled down and slowed to 55 then continued to decrease in speed to about 20 mph.  Then no matter how had i hit the gas it won't go past 15-20 mph.  When i am in park or nuetral and try to rev the engine it revs to aout 2300 rpms and stops.  I havent changed the spark plugs in a while i am hoping its that simple but  fear it may not be.  Any one know what else it could be?????

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Bad intake not enough air to the cylinders, spark plugs could be a prob, or ur car is running to lean...i hate a similar prob with it shakeing when idleing but i just tap the gas and it stops

Posted on Jan 18, 2009

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