Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Entegra Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 05-05-2012, 10:27 AM   #1
Junior Member
Join Date: Aug 2011
Location: NJ
Posts: 8
rapidly deflating air suspension

For the full year and a half that we've owned our new Anthem, our airbags deflate very quickly, sometimes taking only 12 hours to deflate completely. We must wait almost a full ten minutes after starting the coach again before they are 100% full. We had our an authorized repair shop take a look, but no leaks were visible.

Does anyone have this same experience, and is it normal? Thanks.

jayrv is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-05-2012, 10:40 AM   #2
Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,263
definitely not correct. I'm guessing a piece of debris in air solenoid that handles air dump, or malfunction in the air leveling setup. I'd call that a slow leak. The air system should hold air for weeks at least.
There are multiple threads on the Entegra air system here on iRV2. Go back to the Jayco Owner's forum page & search on 'air leveling' and 'air dump', etc. to find more info on your setup & possible glitches.

Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 05-05-2012, 03:17 PM   #3
Moderator Emeritus
Cruzer's Avatar

Join Date: Oct 2002
Location: Sheboygan, WI
Posts: 4,965
Your Spartan's air bags are connected to a height sensing valve. This 3 way valve is operated by a link that is attached to the frame. In a midway position it will block off the air in your air bag, letting none in or out. If you loiad the coach up, it will settle due to the extra weight. As the frame moves down it actuates the arm on this valve and connects the air bag to the air tanks so that the compressed air can pump the bag up so that the coach regains it's set ride height.

By the same token, if your coach starts to ride high after losing some weight (that's everyone's goal isn't it ) then the arm operates the valve in the opposite direction, allowing the air bag to drain the excess air and vent it to atmosphere until the coach settles in at it's designated ride height once again.

If your bags are filled to the prower amount when you park they should hold their pressure for a reasonable time unless there is a leak. The leak could be a hose fitting between the bag and the valve or it could be an internal leak in the valve. Note that if you are parked on a slight incline the bags will drain anyway because of the weight transfer to one end of the coach.

As to taking forever to fill them up, if you run the engine at a fast idle this will improve. Empty bags do take quite a while to fill if the engine is idling. Probably not 10 minutes though. If you rev the engine to 1500 RPM you should be able to fill a complete set of dumped air bags in less than a minute. If that's not happening, you have an issue in delivering air to the air bag. Assuming that your filter-drier is clean and you are capable of pumping air as designed, I'd say that the issue most likely exists in the ride height sensing valves because they are draining them out when they should be holding air in and they are also not allowing air to fill them very fast. Note that in this case you will see good air pressure on ther dash gauges but the air just isn't getting into the bags to raise the coach. If you have a problem in putting out enough air in the first place your gauges will indicate lower pressure. The only other possibility is if you are making enough air but it's leaking out too fast to raise the gauges. But that you would hear so I don't see that as an issue.

It sounds to me like it might be time to have a Spartan service center take a look at them.
Mark & Leann Quasius
2016 Cornerstone 45A
2007 Allegro Bus 42QRP (Sold)
2012 Jeep Wrangler Unlimited - Rubicon
Cruzer is offline   Reply With Quote
Old 05-07-2012, 07:11 PM   #4
Junior Member
Join Date: Aug 2011
Location: NJ
Posts: 8
thanks for the well informed replies, it's really nice to have for newbies like us. we'll take your advice and run with it, as it seems our issue is definitely a problem, and not the norm.
jayrv is offline   Reply With Quote
Old 05-08-2012, 03:35 AM   #5
Senior Member
bill2011's Avatar
Join Date: Aug 2010
Posts: 683
Thanks for the information regarding weight shift if parked on a slight decline causing airbags to deflate. I have noticed this and thought I had a problem but it appears from your info that this is normal. This forum is great!
2017 Entegra Coach Anthem 44B/450 Cummins/Spartan
bill2011 is offline   Reply With Quote
Old 05-08-2012, 11:46 PM   #6
Senior Member
Join Date: Jan 2009
Posts: 571
What we've been told and experience: we have a 2012 Anthem 42RBQ with the Spartan MM chassis. we have been told that it is common for this chassis to "drain" air overnight (which it does). Even when the coach is parked in the garage on a flat surface.
We've addressed this issue with Entegra and Spartan (have had coach checked for leaks, none) and both have said it is "normal" for the air to bleed off overnight (within 24 hours).

as far as the "refill", if you turn on the cruise control and push the resume button, the coach will run up to 1,000 rpm's and the bags will fill much faster and you won't have to hold the accelerator pedal. you can then do whatever to finish buttoning up the coach to travel.
lp5151 is offline   Reply With Quote
Old 05-08-2012, 11:57 PM   #7
Senior Member
Mr_D's Avatar
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 31,293
Our DSDP on Spartan takes several weeks to bleed the front bags down and just a minute or so to air up. The rears seem to stay up forever! I do run the engine at high idle to air up though.

2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Leaf spring suspension vs air suspension jpe2459 Roadmaster Motorhome Chassis Forum 5 07-24-2011 10:54 AM
Grand Star air suspension cmac41 Newmar Owner's Forum 5 09-01-2010 08:57 AM
Help! Rear air suspension won't charge Dyno Bill MH-General Discussions & Problems 3 04-20-2010 04:16 PM
Jetco Air Suspension System billr30656 MH-General Discussions & Problems 7 11-01-2009 04:57 AM
Adding suspension air bags to leaf springs DickP Workhorse and Chevrolet Chassis Motorhome Forum 6 08-09-2009 11:32 AM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:59 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.