[RayChez1]

Yep! I would start with the compressor to see if it is putting out any air.

It would be very unusual for both air lift valves to go bad at the same time. But I did have one that stayed in the open position when my coach was new in the front and the air bags on the front would not inflate, but you could hear the leak right under the wheel well on the drivers side. I had the coach towed by Coach Net to a freight liner shop in SD and they replaced the valve. It was still under warranty. Never have had that problem again.