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My 2000 Excursion has 152,000 miles on it. When I bought it at 91,000 miles, I replaced all 10 coils.
Earlier this week it started missing on one cylinder once warmed up. It's not throwing any codes, and seems like it's probably a coil. I also recall that sometimes the boots go out.
Is there a way to easily determine which one it is? It seems too early for the coils to be going out.
i had a cracked boot and could you could bend it and see it cracked. On my rzr i filled the boot with di electric grease and when i put the boot back on the plug it squirted grease out the side.