Should I replace my ICM? '89 Bonneville
I've been trying to nail down a problem in my '89 bonneville where it idles rough after the engine gets a chance to warm up. Looking back in past forum posts most people seemed to say such a problem was most likely coil pack or wire or ICM related. So far I've put new wires in, and I just changed the coil pack last weekend and it still idles rough after warming up. I did notice when I took the old coil pack off that the greenish insulation from the ICM had pretty much melted and collected down at the bottom since it sits at an angle. I had to cut a bunch of it that was stuck to the coil pack off with a knife.
So my question is, is this a fairly obvious sign I should change the ICM? My running theory is that it'* currently getting too hot with the lack of insulation causing my rough idling.