Well, it finally happened to me - crank, no start. FICM logic power & main power show 0 on Torque Pro, Cam/Crank sync shows 0 also (IF my PID's are set up correctly). Tach & oil pressure gauge don't move when cranking. Is there a fuse that could kill all of this? Was running fine when I parked it a couple days ago. Only codes are for EGR and Fan (EGR deleted & 7.3 mechanical clutch)

 

Are the FICM harnesses fully seated? Good luck with this.

 

Hopefully this is my problem - vermin seem to have gotten to the FICM harness. Found 2 wires chewed through. Have patched them, but waiting to buy some foil tape to re-wrap it. Also recharging the batteries.
Fingers crossed...

 

That is the first that came to mind when you described your issue. Good luck.

 

Yep, that was it. Back up & running.

 

Too bad rodents don't follow any set pattern on what appeals to them most under the hood, lol. They can be a real pain.

 

Wasn’t there some spray folks had been spray wiring with a bitter agent or repellent

I found mice been my explorer cabin area recent nothing in trap yet

 

My FIL told me some of the wiring insulation and plastic fuel line is made with corn/ soy products which may explain the rodent fascination with them. I had a vent line on a tractor I could not keep the rodents from eating. I replaced that line numerous times. I finally smeared grease on it and they haven’t touched it since.

 

Good idea (as long as they didn't move on to other more-important things to chew on)!