New member here and I searched with no conclusion. 2013 348 with a paccar 8.
I have a 348 straight truck that sat for 1 month. Prior to this had been flawless. The batteries died, so i charged them up. Now the truck turns over strong, but won't crank. The ABS doesn't do its clicking check down, no fuel pump, no door chime, no AC fan blowing.
Grabbed the test light and noticed that half of the fuse panel had no power. Popped the dash gauge cluster out and chased it to the 70 amp relay (heard they're problematic). The relay tests good and I bought a new one for kicks, but there's no power on one of the legs. I can make a jumper and the engine start and runs perfectly.
Is there a fuse that supplies juice to the relay? The ignition seems to test properly as well.
A Huge thanks in advance for any insight that could be sent my way