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post #1 of 9 (permalink) Old 07-12-2010, 11:04 PM Thread Starter
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help!!!

I have a 09 t/c cobalt ss it only has 7060 miles on it. recently had problems with it cutting out and loosing power no matter how much gas it has in it. i got a cel about a week ago it at first flashed then came on steady. I had it put on a code scanner and it showed random misfires on cylinders 1 and 4 so i changed plugs out and it all plugs looked great but changed them since i already had everything loose and had new plugs, but still having the exact problem. i only got a cel that one time it does it only after around 20 mins of driving (the cutting out and no power at around 3k) but the power lose it constant. Thought it could have been bad gas so i have ran fuel treatments through the last couple tanks of gas. It doesnt do it at all rpms its only at 3k or more but will not pull past 5k
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post #2 of 9 (permalink) Old 07-13-2010, 04:51 AM
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I would take it to the dealership,


Are you tuned? Maybe you could have g***en a bad tune or something.

I was beat by RKRamos.
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post #3 of 9 (permalink) Old 07-13-2010, 01:24 PM
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Check the air intake piping as well. May have a leak and causing the engine to run too rich to compensate for the extra air.

Also if you do run cheap gas, the turbo or supercharger does not like it at all. Not enough combustion from cheap gas for a force induction. Premium is always recommended with one. If it does proceed to be an issue, just take it back to the dealer and slap them around a little bit....
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post #4 of 9 (permalink) Old 08-07-2010, 03:18 PM Thread Starter
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ok guys it was only the plugs... 123 dollars for them.
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post #5 of 9 (permalink) Old 08-09-2010, 08:16 PM
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You shouldn't have had to pay for new plugs if you got them from the dealership


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post #6 of 9 (permalink) Old 08-10-2010, 07:50 AM Thread Starter
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well i couldnt drive it and had to stop at autozone and all they had was autolites. but i put the stock ones back in the car incase they had to put them back in it. now its running better than ever. never thought a cobalt was so quick... just wish i could get faster than a 14.7 quarter though.
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post #7 of 9 (permalink) Old 08-10-2010, 08:43 AM
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You can get faster than a 14.7 lol My buddy was running 14.3s


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post #8 of 9 (permalink) Old 08-10-2010, 09:30 AM Thread Starter
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it was 98 degrees with 90 percent humidty to so plus i did the epic failure i forgot windows down and sunroof open.....
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post #9 of 9 (permalink) Old 08-10-2010, 11:43 AM
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That was a lot of freakin money you paid for the spark plugs. And atop of that, the reason that they went out was because they are the originals, mine went out quick too but would never bog down.

Shoulda got the E3s. A big improvement over stock and burn a lot more efficient.

http://www.e3sparkplugs.com/
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