ottersea wrote:
Probably not the ignition switch since I recently changed that. I do not know if it could be the solenoid since it was supposedly changed when we had a problem on the Alaska trip. Do you know where the solenoid is on a cummins isb5.9. It is so crowded under there I have no idea where to look. I assume it is somewhere near the engine. It has been turn on the disconnet then try to start. Probably not more the a couple of minutes. Next time I disconnect the battery I will wait 10 mins of so to see if it makes a difference.
I would check the conections on the ignition switch just in case you left a loose one. Then check the battery disconnect to insure it works. Also the condition of all battery connections. Storage can lead to gremlins . There is a chance that the starter is getting tire, poor internal contacts etc. I had one become intermittent, bought a new battery ,,,,, eventually had the starter rebuilt.
A 5.9 is an easy start once you get it turning but it takes a lot for the first crank.