[larryweikartsr]

    Well, so far, I've removed the wheel from the tag axle so I could get to the Air Dryer. I changed the filter and checked the supply line coming from the dryer and it has plenty of air coming out but nothing changed. I have now traced the air line that goes into the top of the manifold and it seems to come from a valve that is located between the drive axle and the transmission cooling fans.(see picture) It appears that this valve also has a line coming in from the 120v compressor and another line that goes towards the small supply tank located in front of the door side drive axle. I've sent these pics to Newell to see what they think and I guess I'll have to wait until Monday to get an answer. I'm learning a lot in the process so it hasn't been a waste of time or energy. For instance, I had no idea that there are 6 air tanks on my coach. The 2 square tanks in the back were a big surprise, I thought there was only the big round tank in the rear along with the 2 in front and the small supply tank. So another successful day of learning something new!