Y'all have been a lot of great help!! I found the issue with grounding for the coach batteries. Due to my schedule this year, I opted to take the coach in for service on the battery compartment - needed a bracket welded. Anyway, some how during all of the work, the ground was not properly installed. I figured it out and had an awesome trip this weekend. The system charged during the whole 150-mile trip. Thanks again to everyone that responded.

This might sound like a dumb suggestion, but I looked through all the other replies and didn't see much talk about the voltage regulator. I just went through the same "bad alternator" situation with my '77 on a Dodge chassis and it uses an external voltage regulator that turned out to be the culprit. Now I keep a spare one because its easier to plug in a known-good regulator than to change an uncertain alternator. I'm aware that some systems use a voltage reg built in to the alternator, and If that's what you have, then I'm sure between Bill h and Bill NY they will get you to the source. (oops, didn't see pg2 of replies, glad ya got er fixed!)

quote:

Originally posted by modeleh:
some systems use a voltage reg built in to the alternator

Yup.

Mike, it's funny that you would say that about the ground. After I replaced a bad alternator on my 85 Regal, I still had trouble starting the Barth, especially after the engine had been running a while. Talked to a few guys in Tennessee who said all the starters on the 454 engines were subject to premature failure and that I would have to replace mine, preferably with a high powered thing that costs about $200. But Rowells RV in Charlotte looked at it and said the chasis ground was poor and ran a new wire from the battery direct to the block and guess what?--no more problems. And no new fancy starter either.