[al]

Mine is located outside compartment under drivers seat. (98 Royale XL 40)

[DON]

yes, like Jon stated

[Calvin]

How old is your air bags? That’s why my Royale had the leans. or 5 port Norgren on rear bulkhead Mike If you want E-mail me art.twaddell@gmail.com I can send you some cool info on air system.

[George]

Okay! Will Do!

Thanks

[Ken]

Mike I saw this post from earlier this year. I have a 99 Royale with the same issue. Again. I replaced the 3 port Norgren valve last time and it fixed it. The problem has resurfaced after a few months and was wondering if it could be the 5 port Norgren now. Did you replace it? Was it forward of the front axle on the bulk head? Please let me know if not too much trouble. Thanks

[George]

The leans are due to the lean side rear air bags losing air. This can come from any number of things. i replaced all my airbags, Norgrens, fittings, and airlines, and upon the first air up, it leaned to the left. For me this was a leaking air fitting on the top of the Bag. I recommend pulling the drives off, and tag if you want and filling up a squirt bottle with soap solution and soak everything down. If there is a leak you should find it quick. The other area I would check is the air exhaust port when you dump the air. It is possible air is leaking aback thru the Norgren to this valve. Again soap it up and you should find your issue.

[Jon]

Mine is doing the same thing on the driver’s side. It’s either the 5-port on the bulkhead ahead of the drive axle, the 3-port between the drive and tag near the tires, one of the 3 air bags on that side or an air line or fitting between them. Mine leaks down after a few hours but I couldn’t find anything with soapy water. I sprayed both valves, the air fittings, and the top/bottom of each bag. Some areas from underneath and some through the wheel wells. I have an ultrasonic leak detector coming today. Looks like I should replace one of the air bags as well, one looks rough and doesn’t match the other side. Obligatory disclaimer: support the coach at the proper locations before getting under it, especially if messing with the air system.

[George]

Not all leaks are capable of identifying with soapy water.

The “piston” that the rubber rolls over is not part of the air bag. As a result the metal can that the bottom of the rubber is bonded to can leak due to age and corrosion or the bond between the rubber can start to leak. They are under the piston and will not be reached or see soapy water. Adding to the issue ultrasonic leak detectors are great, but will not detect leaks in rubber, such as a hose or air bag.

One area rarely considered as applicable to rear end suspension leaks is the 3 port exhaust valves in the steer compartment. Dump air and note where the valve is located in the steer compartment and then plug the exhaust port to see if that stops the leans. On a Liberty note the addition of 2 3 port solenoid operated Norgren valves which also function as exhaust valves.

[Archived]

BDuplan, Let me know how it goes and if you like the one you bought. I have been thinking about adding one of these to my tool arsenal.

[Jim/Chris]

Mike:

Be ready to spend some $. I bought a cheaper $380 one and immediately sent it back. I could hear air leaks with my ears better than the darn thing could detect.

I have seen post in the past that warn the cheaper ones are useless.

Chuck

[Glenn]

Chuck, you are hilarious! that is the exact reason I am waiting to buy one. i have a friend with one i forgot the brand, he came over to show me how it worked and i had no idea what he was hearing. He would say do you hear it? i would say no, i don’t hear anything. I tricked him by saying there was an air chamber behind the frame listen here, and he said Yup I hear it!.

[Corey]

I will let you know! It was only $49 on Amazon (looks the same as many of the more expensive ones). I figure if it doesn’t work I should be able to return it easily.