Truck has 122K. From Florida, truck stuck in Columbus Georgia. Dealer doesn't have experience with the older diesels (WHAT). Back to square 1. Told me to come pick it up. History with truck. About PMD, replaced and relocated on heat sink about two years ago due to truck not starting. Then LP goes bad, replace (ac delco), change fuel filter and truck runs fine. Ran great for several thousand miles then had issue with irractic idle and runaway throttle. Call numerious repair shops and they point to IP ($2300). So I replaced with another PMD based on info from forum. Ran fine for 700 miles. Truck then starts to intermittenly stop with sometimes hard starts. Replaced PMD again due to symptoms just before trip. Ran great all the way to Georgia and we know what happens. Shut down truck in parking lot and won't restart. Same symptoms as those other bad PMD's. Run to parts store replace with a Dorman PMD. To my surprise, doesn't fix the issue. Truck won't start. What can I look at to get my truck running again. Could it have been a faulty PMD I bought when I was there? What can burn out a PMD. Maybe that is where I need to look. Please help with any info.