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Old 05-24-2022, 09:46 AM   #1
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suspension going down while sitting - one side more than the other

I have a 2004 Monaco Windsor. It recently started lowering unevenly over several days. It has always lost suspension air over a many-day period, (I always assumed that was normal when stored).

The suspension is fine (or at least seems so) going down the road

Can anyone tell me if I have an issue that needs to be resolved ASAP....or???

Thanks, for any help.

The best way to reach me is dave7vt@gmail.com

David
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Old 05-24-2022, 10:04 AM   #2
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Leaking is normal. If you drop it down to the stops when you put it away there won't be any issue with uneven dropping. You can chase down leaks with a spray bottle, but you'll never get them all and you'll never catch the one that shows up when you're away.
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Old 05-24-2022, 10:13 AM   #3
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Sounds like you have an air leak(s).



To safely check you'll need to be able to crawl under your rig not relying on the air system or hydraulic jacks if you have them.

I built a set of ramps using 2X10" lumber cut in 48, 42, 36, 30" lengths. Screwed together to form a ramp, I added a stop block on the top piece to prevent me from driving off. I built 6 of these, one for each tire.
I then used a spray bottle of soapy water and checked all my fitting, valves, connections, and check valves.

I ended up replacing all my Pressure Protection Valves because they were leaking badly. I also replaced any fitting that I had to excercise to get the tubing free, and other check valves because they had internal rubber components that could fail with age.

None of my leveling valves were leaking. Here is a link I did on replacing the PPV's. https://www.irv2.com/forums/f115/pre...ng-562359.html



If you have automatic air leveling there is an air manifold that is known to leak, they call it a 6pack. This might be your problem and you can rebuild these.
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Old 05-24-2022, 12:27 PM   #4
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Thanks for that quick reply.
I used to own a 2001 Winnabego Journey that I always dumped the air on when parked and used leveling jacks.

Ever since I've had the Monaco with air leveling I've never dumped the air.....and I have often wondered if that is something I should do when I am stored?

Is that the best pratice?
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Old 05-24-2022, 12:31 PM   #5
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Thank you Jim,

should I be dumping the air when I store the rig? Is that best practice?
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Old 05-24-2022, 03:13 PM   #6
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Yes, I would dump air.
If one corner of the coach is going down faster then the others it will twist the frame, potentially you could damabe/crack a windshield if it was really twisted.


Do you know if your auxiliary compressor is working, usually with an air leveling system there is a compressor that will run while you are parked and it will level the rig up. Need to be plugged in to keep from draining your batteries. These are usually mounted above the front axle.
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Old 05-24-2022, 04:21 PM   #7
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Perfect.
Yes, that pump works, but I don't usually have the air leveling on when I'm parked level in the garage....but I also, have not been dumping the air.

I'm going to start dumping the air when parked.

If I don't dump....it takes a few days to go down to the stops.

Thank you for all of the help.
David
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Old 05-25-2022, 03:12 PM   #8
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Since you have air leveling (most probably HWH brand), your air leaks are most likely associated with the "solenoid six packs". You have one at the front axle (mine is mounted behind the front step), and one at the rear axle (mine is mounted up high over the rear axle). Each 6 pack has 6 solenoids with "O" rings and seals. They are "raise", "lower" and "travel", two sets of 3, one for the left and one for the right. When the "O" rings (or internal seals) start to leak, you will have the issues you describe. HWH is very good about providing on-line documentation as well as selling you parts.
Good luck. Richard
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Old 05-28-2022, 07:21 PM   #9
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Richard,
This is very helpful. I will get under the coach tomorrow and see what I can find. Great weekend project.
~David
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Old 05-29-2022, 08:51 AM   #10
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Leaning with an air system is always caused by the rear. The fronts operate together so the chassis is not put in a twist.
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