Im hoping someone can help on this. the problem is a 2003 2500hd with the Dmax that wont start. I am an auto tech with limited diesel experience. It came into my shop pushin a tow truck, cranks strong but wont fire. I tried the primer pump but it wont hold presure, as soon as you try to start it loses prime. There doesnt appear to be any external fuel leaks. All the fuses and relays appear to be good. The only problem I found was an airfilter so plugged it was caving in on itself. I have heard rumors of the Dmax having fuel related issues, but diesels are not my area of expertice. Any help would be appreciated.000 Edited by: redtech