Does a coil go bad when it gets hot. Runs fine for awhile then starts to
miss. After about 8 miles. What cause coils to go bad is it the heat. I
checked the ohms, they all read .04 or .05. Think my wires could be at
The coils get hair line cracks in them and then arc to ground. Pull off
the cover and start the car in the dark and notice the blue light show
around all the coils. All the ones on my 92 325i were like this when I
bought it, even though they ohm tested fine, the car missed a lot.
Replaced and it was fine.
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