Driving the ACE home yesterday, we drove through rain for the first time. The rain was the cause of a very high pitched noise. Looking for what caused this and how to fix. When it stopped raining and the road was dry the noise stopped.
be happy...don't know if you've gotten the problem fixed yet or not, I had the same problem and contacted Thor through their owner service number. They sent me a new wire mesh grill to replace the old one. I have read another reply here that had the problem and he just mounted the new grill in front of the old one and it worked. I have my grill and will install soon as I can. Good luck.