Three Letters Re: Diesel Engine Vehicles and EMP
1.) Jim: GM diesel models 1994 or later have an electronic injection pump, and are vulnerable to EMP. Some models made before 1994 will have an electronic glow plug controller which can be easily bypassed. From what I can gather GM also went to “electronic” transmissions around 1994. Before then most diesels had th350 or th400 transmissions. Some pre-1994 GM trucks also had th700r4 transmissions that had minimal electronics, and can be rebuilt with the electronics bypassed. Of course anything with a manual transmission should be safe. I believe most light diesels follow the same timeline because of EPA smog …