I have a 97 Powerstroke F250 with 90,215 miles on it. I seldom use it. I tried to start it Friday and it would not crank, nothing, not even with either.The temp was in the 40s. I finally gave up and there she sets. The only thing ever done to the engine was a new water pump, hoses and serpentine belt this past July. The truck had not been cranked in about 6 weeks. Last winter it got hard to start so I pluged in the block heater and it did fine. I don't know anything about these trucks, or where to start. My daily driver is an Isuzu diesel. I know them inside and out and all in between. After 14 years the Ford probably needs glow plugs, and relays. The guys I drink coffee with every morning said the valve cover gasket wiring might be bad. I don't have a manual for this truck. I thought I was buying one and it was a disc for the computer, and I'm a computer dummie. Is there a place on the site with instructions and testing info and pictures or drawings. If you guys can tell me where to start I will be very thankful. Thanks guys Ron in Miss.