No I haven't had a chance to test the coils as suggested. I had the old
ICM with me during a work run and managed to find a place that
tested it. It showed green. One thing I was amazed at was how fast
it warmed up. It didn't take but a couple of minutes for the test and
the back was quite warm. Did GM ever put any kind of dielectric
grease or some kind of insulation between that back section of the ICM
to the alum mount ? Didn't seem like it. No wonder those things don't
last.