[Roger]

Assuming the coach has level low it is probable that the leak is in the air bags (one of the three), or the 3 port Norgren, or the 5 port Norgren or all the associated fittings.

If you haven’t spent much time beneath the coach looking at how the air suspension in the rear is set up, let me be the first to tell you that an air bag leak is not easy to find because you cannot get soapy water at the total air bag with a lot of the potential leak points hidden from view. Additionally the five port Norgen located ahead of the rear fender liner could leak through and it exhausts through a three port Norgren located in the steer compartment.

To add to the confusion, unless the coach has has the reverse logic upgrade your “leans” can be caused by low aux air pressure allowing the 3 port in the rear to vent tag axle air bag air.

I am not trying to confuse you or make it difficult, but while suspension leak detection is not that difficult it does require a little detective work and some understanding of the system. Check our articles section for some more detailed help.