I have had this truck about a month. Runs great! I went to start it one morning and it wouldn't start! My batteries are good, i replaced the fuel pump relay, fuel pump. Now I am told it may be the glow plug controller, or glow plugs! I live in a VERY small town, so diesel mechanics are limited!! The glow plug lights come on, and when i try to start the engine (while it's turning over) I will see the light come on again. Any suggestions would be great!!!!