Quote:
Originally Posted by slomach03
Would coils do the inconsistent stuff I described and is it possible for them to come loose over bumps? Seems like theyre pretty well fastened in there.
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They often have intermittent issues before they will make a CEL come on. My experience with them has been random misses at WOT and occasional “shark bite” like misses at every-day type driving.
What I do to help make sure it really is a COP going bad and not a bad connection is to use dielectric grease on the spark plug end of the boot. I’ve had to fix three of my COP wire harness clips too, but you’d see that problem upon visual inspection.