Mechanics

MERCURY MYSTIQUE CHECK ENGINE LIGHT PROBLEM

1998 Mercury Mystique • 100,276 miles

Why does my check engine light flash and the car idles rough its full of oil and anti freeze I put in dry gas cause I thought the moisture in the tank might have froze cause I live in ny I need an answer when im driving its fine but when I stop the light will flash and the car idles rough again in drive or park
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Josh3777
January 23, 2013.




Check plugs, wires/coil, I would start there as it is most common

Roy

ASEMaster6371
Jan 23, 2013.


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