During my July 4th holiday travel, I began to experience what I believe to be iginition module probelms with my '91 5.0 mustang.
On my way from the DC area to NC, my car just shut off on me in the middle of traffic and wouldn't crank. A mechanic help push me out of the road. He told me that as soon my car cools off it would crank again and that it was problem my car when the iginition modules get too hot. Sure enough, after letting my car sit for about 1hr, it cranked and I was able to complete my trip.
Once, in NC I replaced the ignition module and ignition coil. However on my trip back my car again shut off me on the interstate.
I pulled off to the side of the road, and allowed the car to sit for about 30mins. It crank and I was able to complete my trip.
Both times when the car shut off, I was burning my AC. After restarting on each trip, I cut the AC off and experienced no additional problems.
1) Is there anything I can to do minimize the supposedly common iginition module problems.
2) IS the AC related to the ignition module malfunction or just a coincidence.