My nephew has a F-350 diesel that would drain the batteries overnight. I disconnected one battery and jump started the truck and it ran fine. I went to charge the other battery and it pegged the 10 amp charger and triggered the charger relay big time. I took it to the house and used his charger--same thing. Found out he somehow reverse charged the battery. It had also blown the alternator.
The reason he originally recharged the battery was excess current draw with the ignition off.
I took off the starter cable and measured the current draw across the electronics, auxilliary cable with a digital meter. It showed a current draw of about 3-5 amps that my 30 amp analog current meter (borrowed from tractor supplies) did not show. So I then removed each fuse and measured the current draw across each fuse socket and localized it to one minifuse and left it for him to finish tracing it to whatever relay, device was defective. I forget which one.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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