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My 2004 Impala is cutting out. At 1st I had thought maybe I got bad gas. Well then I had someone tell me to use Gumout to clean my fuel system. Well it's better.....but it's steady cutting out once I hit 45-50 mph or climbing hills. When I hook it up to the computer it says random misfire detected. My buddy said it's probably a bad coil. I am leaning more towards plugs and wires. But I am a girl and idk what I am talking about lol. Help guys!!
 

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Coil/wires are probably the best bet. Wires you can visually inspect to see if any arcing.. Plugs wouldn't really give you that issue unless you recently gapped them.
 
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