Thanks for the link!
I've moved the negative cable as Verkstad suggested. I'll see if I can figure out a way to balance the middle battery.
I don't have an under hood battery that I can find, just the 3 in the tray. According t the FSM, they didn't offer an under hood...
I have this one
but my batteries were too shot to even get consistent readings. I'm hoping the new batteries will resolve that issue so I can look for power leaks this weekend.
My batteries surprised me by getting to the store today so I spent part of the afternoon charging (they all went to Float within 15 minutes), cleaning cable ends, installing new terminal connectors and getting them in the battery box.
The new batteries are Northstar built AGMs...
Mine has the dual alternator option installed (95/140 amp upper and 75/120 amp lower).
Thankfully, I was also able to pick up set of all 3 FSMs on ebay for less than $100 that should make tracing the factory wiring easier.
I like your separate systems approach... I guess my...
We recently purchased a 2007 Horton Type 3 ambulance based on the Ford E450 Super Duty 6.0 TD. We've had starting issues when not on shore power, so I pulled the 3 Motorcraft BXT65-850 batteries and took them to be tested at Oreilly's Auto Parts. All 3 are within the 3 year replacement warranty...
As a 'newbie' ambulance owner, I'd like to thank everyone for the great information here.
We've purchased a 2007 Horton Type 3 ambulance that had a few 'improvements' but a solid 6.0 (I realize some people don't like them) with no leaks and no ECT/EOT issues that we could identify with Torque...