Hello! I have been on this website for the last year since i purchased my truck. First time posting! It is a 94 7.3l IDI Turbo Diesel. it has 179k miles. Over the last few weeks I have been hunting down air intrusion(which i think i mostly have under control), and diagnosing a bad injector, and or glowplugs. So to get down to what happened to me today... I was cracking the injector lines while the truck was running to test and see if it changed the idling(looking for potential bad injector) and when I got to the line right next to the GP Relay it cut off the engine completely. I am assuming I touched the relay with my wrench and something bad happened.. I have been checking the fuses, etc looking for my answer with no luck... Also since this happened, the glow plug wait to start light will not shut off. I have it powered by a push button in the cab. My question is what could I have shorted out to cause the power to cut off the fuel shutoff solenoid and the glow plug relay?