Re: Rear Differential/Transmission/Driveshaft noises?
On my last trip, my house battery got very low and since it was hot and I really needed to keep the fridge on all night I put the Diesel on high-idle for an hour and lay down in the back to read a book. The engine was making this awful noise, a loud vibration that I never heard on the road or other times I'd idled to charge. I was convinced it was a harbinger of engine problems but I had to charge the batteries so I continued to let it run.
Two days later I noticed the same noise at a rest area. The van was off, and I thought a really loud semi must have pulled up. I sat up and turned off the fridge to listen and ... the sound went away. It was the danged Norcold... it has started to resonate in the back of the van and is actually louder than the diesel when I'm in the bed. Awful.
Glad you found the problem.
good to be back