1997 Patriot with a 3126 engine. Was running just fine, shut it down and when I tried to restart the next day it wouldn't start. I noticed the engine pre-heat light did not come on, Tried two or three times no start. Turned key on and pre-heat light came on and engine started. Next day no pre-heat and the engine refused to start. the temperature is in the 50's and it normally starts just fine without waiting for the pre-heat cycle. Any thoughts, electrical problems?? etc.