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Old 03-06-2012, 04:17 PM   #1
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coils or plugs causing misfire?

I haveva 99 gt and i sprayed under the hood yesterday with a powerwasher, i didnt spray anywhere around the plugs or coils. And i left it running but i know it still could have got moisture. Is this usually a cause of bad coils ir plugs?
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Old 03-06-2012, 05:27 PM   #2
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I am having the same problem, I barely sprayed under the hood and now my 99 gt is running like garbage it is definitely misfiring. Went to auto zone and they said cylinder 8 was misfiring so I replaced plugs and it seemed to help a little but still running poorly, what else could be the problem???
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Old 03-06-2012, 05:46 PM   #3
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Quote:
Originally Posted by Csnow99gt
I am having the same problem, I barely sprayed under the hood and now my 99 gt is running like garbage it is definitely misfiring. Went to auto zone and they said cylinder 8 was misfiring so I replaced plugs and it seemed to help a little but still running poorly, what else could be the problem???
Try changin the #8 coil, i read sone forums about this and they said they are bad about corrosion when yhey get wet
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Old 03-06-2012, 05:55 PM   #4
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I kinda screwed myself and got the coils mixed up not sure which one it is, I do know it's one of the four on the drivers side guess it's time to replace them anyways!
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Old 03-06-2012, 08:54 PM   #5
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Quote:
Originally Posted by Csnow99gt
I kinda screwed myself and got the coils mixed up not sure which one it is, I do know it's one of the four on the drivers side guess it's time to replace them anyways!
U can get a set of msd coils for 300 for all 8 at jegs, better than 55 a pc for oem
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Old 03-06-2012, 10:12 PM   #6
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Quote:
Originally Posted by Csnow99gt
I kinda screwed myself and got the coils mixed up not sure which one it is, I do know it's one of the four on the drivers side guess it's time to replace them anyways!
Well one way to figure out if it is that coil for sure go back qnd have it tested again and see what cylinder it says is misfiring
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Old 03-07-2012, 01:18 AM   #7
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The msds are around 370 but I can get accels for around 200 do you think they are worthy cop
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Old 03-07-2012, 02:36 AM   #8
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Quote:
Originally Posted by Csnow99gt
The msds are around 370 but I can get accels for around 200 do you think they are worthy cop
Wouldn't have accels if they were free.. MSD all day everyday
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That's unimpressive
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Old 03-07-2012, 11:08 AM   #9
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Re: coils or plugs causing misfire?

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Originally Posted by deadsp0t View Post
Wouldn't have accels if they were free.. MSD all day everyday
+1!! MSD or OEM. You get what you pay for when it comes to these. And when it comes to those accel coils, they are really just overpriced paper weights.
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Old 03-07-2012, 10:52 PM   #10
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Originally Posted by CodyNelson

+1!! MSD or OEM. You get what you pay for when it comes to these. And when it comes to those accel coils, they are really just overpriced paper weights.
I agree accel is garbage, msd is the way to go, i have always spent the extra $ on msd, its well worth it
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