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trouble with one cylinder

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Old 03-31-2014, 06:36 PM
Sam Menard Sam Menard is offline
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trouble with one cylinder

Earlier this winter, the engine light came on upon startup for about a minute. I didn't think much about it because it went out and didn't come back on. Brought the truck in for a service last week and asked them to check the codes. They did a quick scan and found something amiss with cylinder #3. I brought it back today for a more in-depth scan and they told me that they are going to replace the coil and see where things go from there. From what I can understand, there is intermittent firing of the plugs. Nothing really stands out as far as engine noises, but my gas mileage this winter has been brutal. I'll provide updates as things progress.

Sam
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Old 04-01-2014, 11:49 AM
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BMWBig6 BMWBig6 is online now
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Misfire with 2 spark plugs per cylinder? Hmmm, please keep us posted.
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Old 04-01-2014, 07:56 PM
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Originally Posted by BMWBig6 View Post
Misfire with 2 spark plugs per cylinder? Hmmm, please keep us posted.
There is only one coil for those 2 spark plugs, so yes a single bad coil would cause a misfire
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Old 04-12-2014, 08:36 AM
Sam Menard Sam Menard is offline
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Wel, they replaced the coil. Now they have to replace the catalytic converter. Apparently, the misfires damaged it. Thank goodness for the warranty.

Sam
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