Ok, so after -30 degree temps and a non working circulating heater I apparently fried my gps. 94 7.3 idi turbo f250. Here is the deal. I bought the truck used and this is my first winter with her. I have a push button system and when it was -5 one morn I held the button down for over a minute after I read on a forum somewhere this was an acceptable method to cold start yer diesel. Yay for me. So then what happened was the light would come on ONLY until I hit the button and immediately shutoff. No voltage change would show on the gauge. So I then tested the gpr with a multimeter. 12.9 volts. And with the button held down both post showed 12.9. Just for the hell of it I tried to bridge the gpr with a screwdriver but this still did not yield to a starting engine. Redundant I know. Interestingly after having done this the light on the dash now stays on for ten seconds and does not shut off when I hold down the button. However the gauge still does not show any voltage change when the button is engaged. So I decided to buy new glow plugs and I went to oreillys and the only had champions. I was able to install six of them but two of the old ones are positioned such that the injector lines and turbo are totally in the way. Also, the wires don't even want to snap down on the plugs! Now the champions are 5 volt plugs yet my relay is showing almost 13 volts. And after searching these forums on champions I have found, much to my chagrin, they are really poor gps. Should I pull them, lose the 90 bucks I spent on them, and buy berus? Do I need 12 volt GPS? This is a working truck and I need it working ASAP. Animals need hay etc. I hate to burn up champions and have the tips break off in my engine. Also I'd greatly appreciate any help when it comes to working around the turbo and injector lines. Can I simply remove? Seems like a bigger job ESP when it comes to the turbo. Thanks for reading.. I'm not a mechanic but ready to learn.