2001 U320 42' with tag axle.
Trying to help out a friend,he has air to the right side tag axle air bag, but no air to the left side tag axle air bag--- anybody seen this problem before, any suggestions? My coach does not have tag axles, so im not familiar with this.
This for an 03 so might be different. Both tag and rear axle manifolds are mounted above wet tank on my coach.