Discussion Starter · #1 ·
So, I have a 2006 5.9 Cummins. On the passenger side battery. The negative terminal has two ccables, obviously both ground. On positive side, it's got the main battery cable that comes from the driver side, then the generator cable, and the cable that goes around to the heater block. But when I plug in the cable that goes from the default to the battery it starts smoking. What's wrong here?