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Old 04-17-2016, 05:48 PM   #1
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Front end of coach losing air

Shortly after I park the front end of my Mountain Aire will lose air and go down, just the front, then when I start it up it is fast to built back up, Sometime when I push the air brake button in the low air buzzer will come back on so I pull it back out till it builds up air again once it builds up air I push it in sometimes it won't release the brakes right away

The front end goes down all the time now
The other is air problem is intermittent

Any suggestions

Thanks in advance
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Old 04-17-2016, 06:17 PM   #2
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Quote:
Originally Posted by Mtnaire View Post
Shortly after I park the front end of my Mountain Aire will lose air and go down, just the front, then when I start it up it is fast to built back up, Sometime when I push the air brake button in the low air buzzer will come back on so I pull it back out till it builds up air again once it builds up air I push it in sometimes it won't release the brakes right away

The front end goes down all the time now
The other is air problem is intermittent

Any suggestions

Thanks in advance
I am going to say you have a air leak on one of the lines, or at the air tank...........Since you posted in the Spartan forum, I am going to guess you have Independent front suspension, so that means it has 2 level control valves........and for it to drop like you are saying, the leak has to be around the tank, or the lines going to the ride height control valves.
The reason you have the low air buzzer, is that you have a large air leak.........and I am guessing the compressor runs all the time? Do you ever hear the air dryer purge?
You are going to have to start it up, get it to proper ride height , if you can, put blocking under your "Retracted jacks" and start looking/listening for the leak, by the sounds of things, it won't be hard to find...........A spray bottle with a little dish soap will aid you when looking for the leak.
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Old 04-18-2016, 07:44 AM   #3
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I am going to say you have a air leak on one of the lines, or at the air tank..... ...........A spray bottle with a little dish soap will aid you when looking for the leak.
Exactly how I found a leak at a fitting on the tank at center rear of front axle after a couple of shops said they couldn't find it.
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Old 04-18-2016, 03:19 PM   #4
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My front was also dropping on my 05 KSDP and it was caused by the rear ride height valve leaking. I could hear the leak from the side of the rv. The reason the front drops first is because the front air bags require more pressure due to there size according to Chris at Spartan and it proved to be correct on mine anyway.
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Old 04-19-2016, 06:27 AM   #5
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Thanks everyone will check it out however the other night when we put the coach in the shop my wife did say she howard Aire at the back of the coach in between the axles, so that is the first place I will start to look
Thanks for the help it will be a few weeks before I will be able to get to it but I will let you guys know
Safe travels
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Old 04-19-2016, 06:28 AM   #6
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Sorry stupid me and my spelling I meant heard air at the back of the coach
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Old 04-21-2016, 12:08 PM   #7
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Sorry stupid me and my spelling I meant heard air at the back of the coach

Did you know you can go back and edit your post for a limited time after submitting?
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Old 04-21-2016, 12:23 PM   #8
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I had exact problem on our MADP. Front would drop quickly, compressor ran too frequently, air leak in back drivers side over axle.
Rear ride height valve bad. Replaced it and problems went away.

http://www.irv2.com/forums/f103/2002...ak-254295.html
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Old 04-23-2016, 09:53 PM   #9
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In case you are going to do your own repair work and find you have one or more defective ride height valves you will save a lot on replacement parts by finding them at a truch parts house versus ordering from Spartan or your RV dealer. I had to remove the defective valve and take it with me for comparison to the replacement since I couldn't find the part number on my old one. Now I have a record of the number and can just find a replacement when needed.

If I remember correctly the last one I bought was just over $50. where my dealer wanted nearly $100. I like him and would pay his price if I needed to, but there are frequently better ways.
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Old 06-29-2016, 02:52 AM   #10
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I had the same problem with front dropping very quick and just replaced rear ride hight valve last weekend and problem solved no more leaks or dropping on my 05 MADP with tag


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Old 06-29-2016, 05:49 PM   #11
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For 5 years I had a problem of an air leak on our 04 Essex. I spent 10 hours or more on at least 8 different times to find the leak. Had it at a Spartan Service location that does work and even twice to Spartan in Michigan and no one could find the problem. After 3500$ dollars I thought I was just going to have live with it. Then about 6 weeks ago the air drier had a major leak which wouldn't let the coach build up air pressure and you could hear it leaking air. Replaced the air drier and now have no air leaks after 2 weeks of sitting. The air drier was the problem along and for 5 years nobody could check it and find out that was the problem. Don't forget to check air drier. I would have paid 1000$ or more if I would have know that was my problem 4 and 5 years ago.
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Old 07-24-2016, 07:35 AM   #12
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We just purchased a 45' 2017 Entegra Aspire, which is on a Spartan chassis. Moving from a 40' 5th wheel, this is our first coach. Question I have is, is it normal for the rear air bags or rear of the coach to settle or deflate over a couple of days?
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Old 07-24-2016, 07:44 AM   #13
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We just purchased a 45' 2017 Entegra Aspire, which is on a Spartan chassis. Moving from a 40' 5th wheel, this is our first coach. Question I have is, is it normal for the rear air bags or rear of the coach to settle or deflate over a couple of days?

On an old coach it is pretty common to have some leaks and the air bags lose air over time. Not sure I would expect that on a 2017 model.


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Old 07-24-2016, 04:27 PM   #14
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Originally Posted by rlwhite View Post
We just purchased a 45' 2017 Entegra Aspire, which is on a Spartan chassis. Moving from a 40' 5th wheel, this is our first coach. Question I have is, is it normal for the rear air bags or rear of the coach to settle or deflate over a couple of days?
No, your air bags loosing air in a couple of days is not normal......it should sit for weeks/months if there is no air leaks......
There has been a sloooo of faulty air ride control valves on the Spartan Chassis out of the factory over the last couple of years......
After making repairs, my old Mountain Aire will sit on its bags for months.......Have it checked out and repaired. Air leaks just add stress to the engine air compressor and the air dryer thus cycling......of the air system.
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