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Something about such cheap coils makes me really wonder about their quality.
At this price I can change the coils once a year, not that I want to but I have had the Wells and the Ford coils fail in a year. Something about overpriced parts that just tic me off.
purchased the COP's from the e-bay link and installed them a week ago - so far so good. I had the same symptoms others have described and this seems to have cured it. Hard to beat he price, I could afford to replace all 10 instead of paying a shop to diagnose which cylinders were acting up. They claim a lifetime warranty, but that could get tricky since you'd have to pay someone scan it to know which ones to return. If all is well in a month, I'll probably buy another set before the price goes up and forget about the warranty.
Watch out for those 2 or 3 back drivers side plugs in this rainy weather. Water can get in from the hood and cause a miss which can be construed as cops.