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Old 09-29-2011, 05:31 PM   #1
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System Aired Up, Bags Will Not Pump Up

I'm new to my 2004 Winnebago Ultimate Freedom, and to DPs in general.
Started to leave today. The air system pumps up fine, alarm goes out, pressure is 100 PSI, BUT the air bags do not inflate.
Anyone else have this problem, or know anything to try or look at?
Don't hear or see any obvious air leaks. Everything else air works (brakes,etc).
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Old 09-29-2011, 06:21 PM   #2
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First thing I'd try is to put my foot on the brake, release the parking brake and select a gear (forward or reverse). Don't move, just let the system inflate the suspension air bags. Sometimes, in cold weather, ours "forgets" and this process fixes it.

If that doesn't work, try turning on the HWH leveling system and go through the normal stowing process, the last automatic step inflates the air bags. Let it cycle off on it's own.
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Old 09-29-2011, 07:17 PM   #3
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I agree with Denny but I want to add that 100 PSI seems low. Mine will inflate to 130.
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Old 09-29-2011, 07:31 PM   #4
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There may be a regulator in the system to drop pressure to bags. Mine are 70-90 lbs at the bags, but compressor varies between 120-135.
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Old 09-30-2011, 07:14 PM   #5
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Just to document for future reference, I took my machine to my local friendly RV mechanic.
He checked everything over, undid some air lines, aired up and down, leveled the coach a couple of times, and now everything works.
Must have been a stuck valve that somehow got loosened up or something. He suggested I get a spare height control valve, which is sort of the heart of the system, and either install it or keep it in reserve.
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Old 09-30-2011, 07:23 PM   #6
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Anytime I have had that problem with my UA (pretty rare), turning on the leveling system and tapping "Store" did the trick.
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Old 09-30-2011, 07:26 PM   #7
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edndebp

I had the same problem with my 2005 Meridian. My guages registered the usual 150lbs but bags didn't inflate. I dropped the jacks, which took pressure off the Bags, started the engine and the bags inflated. When you park, and you dump the bags and drop the jacks, I suggest you start the Engine before you retract the jacks when preparing to leave.

Good luck

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Old 09-30-2011, 07:39 PM   #8
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Quote:
Originally Posted by Sealevel Ram View Post
He suggested I get a spare height control valve, which is sort of the heart of the system, and either install it or keep it in reserve.

Actually there are 3 height control valves, 2 in the back and 1 in the front.

Could he have been talking about the inversion valve? I believe it controls the dump/travel function.
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Old 10-02-2011, 04:20 PM   #9
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On our 2004 there is an additional sheet that tells you to start engine and push store button, it will air up sometime if I don't do this, but most of the time I have to push the store button. If I stop and don't lower jacks and the air bleds off, I still have to push store button.
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Old 10-03-2011, 08:24 AM   #10
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Quote:
Originally Posted by Billy S View Post
On our 2004 there is an additional sheet that tells you to start engine and push store button, it will air up sometime if I don't do this, but most of the time I have to push the store button. If I stop and don't lower jacks and the air bleds off, I still have to push store button.
That may be why it now works. The technician did the "store" thing with engine running. Hopefully, I will remember to follow all these suggestions in the future.
Thanks.
By the way, Billy S, do you have an Ultimate Freedom?
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Old 10-03-2011, 09:14 AM   #11
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Did you drive it to your RV mechanic with the bags deflated?
Driving it like that can be real hard on the U joints.
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Old 10-08-2011, 05:29 PM   #12
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Sealevel, I had that same problem once and cure that was given to me by hwh was to hit the store button twice. It was not in there manual but it has worked for me.
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Old 10-08-2011, 05:34 PM   #13
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On my 2002 Ultimate Freedom, I had the exact same problem. If I tapped on the 'air-dump valve' with a hammer the coach would start to rise. Ordered a new dump valve from Spartan and replaced it myself. Fairly easy. Located behind the generator near the air tanks. Cost around $200 if I remember right...
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Old 10-08-2011, 06:00 PM   #14
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The air bags on my Jopurney do not always inflatfter the air pressure is up - and I do what have been mentioned above which is select the jacks store button and the bags then inflat.
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Old 10-09-2011, 04:54 PM   #15
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WE have that problem with the bags on our Ultimate;; You have the START the diesel Have it running When you punch the Store botton. Repeat the coach most be RUNNING when you punch the srorage botton;;; Some will dissagree That's oK .. We have several Ultimates in our chapter. That is what works. The guy that dissagrees Is the one that has problems with his air bags.. Life is good.
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