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JCKjck · 04-28-2013, 01:08 PM

Has anyone had this problemI have a 2001 national marlin 5.9 cummins diesel. It has always run great. Started 2 weeks ago to move. Went out this week and weather was warm and would not start. I put in new batteries and she turns over great but does not start. I noticed the wait to start light does not go on. Also my OBD scanner does not show codes just says connecting. There is fuel but I do not think its working. Also air heater does not seem like its working. I checked fuel and there is fuel in filter but I do not see fuel pressure when I release a line. Plus I do not hear the fuel pump running when turning key on. I checked fuses and they look alright but it could be a relay or breaker which is what I am leaning towards. If I put ether in engine it speeds up but does not start. I feel its electrical because its multiple problems, like the computer is not working. It does not even try to start.

Dunner · 04-28-2013, 01:21 PM

Check for a bad fusible link. I had mine break off on the back side of the main battery connector. Same symptoms.

macstonedude · 05-01-2013, 12:46 PM

How cold did it get there in the past 2 weeks that it didn't start? Did you have enough diesel fuel conditioner to keep the fuel from gelling? (Unlike Dr. Scholl, it is not a good thing).