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Old 09-05-2012, 03:29 PM
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lotsagrass lotsagrass is offline
LawnSite Senior Member
Join Date: Jun 2009
Location: Cincinnati
Posts: 607
I just fired it up and pulled each plug wire off to see how it sounds. For each plug wire, when I pulled it off, there was an obvious change (rough idle and audibly sounded as if one cylinder was now not firing. I did this for each side and it sounds the same when one or the other plug wire is pulled off. So, I think the coils are working fine in this scenario. My question is though, is it possible that they could be failing under a heavy load? Could a coil problem present itself JUST under heavy load?
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