eyeteeth wrote:
I was just out looking into the ground part. a jumper (cable) to the chassis was easy enough...
The good news is we got further than previously. The starter turned... lights and everything stayed on. Going to chase the rabbit down that hole for a bit.
Hurrah!! I just won a mental bet with myself! (I make bets but I don't gamble.)
The most important ground connection is the cable from the SLI battery's negative post to the engine block.
Then, the rest of the ground connections can vary. Many vehicles, including most Class C motorhomes, have a ground strap (braided flat metal strap) from the engine block to the vehicle's metal body/cab. Class A motorhomes don't necessarily have metal bodies or cabs so there's usually another major secondary ground connection, either off the SLI battery's negative post/clamp or the engine block.
I can't count the number of times I've seen people leave off the braided metal ground strap, especially when doing an engine swap, and then wonder why their vehicle's electrical system isn't working or acting all wonky.
