Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  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 06-24-2013, 07:10 AM   #1
Junior Member
 
Lloyd21's Avatar
 
Join Date: Jul 2012
Location: chapin, s.c.
Posts: 11
Question air loss

driving along smoothly, and the air warning buzzer goes off on the front air gauge, air pressure drops below 60, release the brake pedal and it starts to rise. Next red light I brake and it drops again. continues to do this till I get it stopped. I can hear air at the rear wheel area.
__________________

__________________
MSG (R) Harvey and Nancy Lloyd + Ziggy, 2013 Cadillac SRS Performance toad, Brake Buddy, Sterling hidden hitch. "HAVE RV WILL TRAVEL"
Lloyd21 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 06-24-2013, 08:41 AM   #2
Senior Member
 
Join Date: Mar 2010
Location: Cumming, GA.
Posts: 103
The rear wheel area is where your air dryer is. Your dryer has a piston that slides over and closes off so that your pressure will build. It sounds like the piston is not working properly and not sealing your air. That's a pretty dangerous thing because if the air pressure gets too low your brakes will lock up. You need to have that checked out
I recently had the same problem and when I took apart the air dryer I found that a screw had come out of the piston and that caused it to not work at all. One screw can stop your whole motorhome.
__________________

__________________
rexabbot is offline   Reply With Quote
Old 06-24-2013, 08:44 AM   #3
Senior Member
 
Join Date: Mar 2010
Location: Cumming, GA.
Posts: 103
In a Haldex Pure Air Plus system like I have the piston is called a turbo.
__________________
rexabbot is offline   Reply With Quote
Old 06-24-2013, 04:17 PM   #4
Senior Member
 
Fkrel's Avatar
 
Join Date: May 2013
Location: Minnesota
Posts: 121
You have a bad brake chamber diaphram the part is not expensive but it is a pain to change if you have not done one before. Its in the chamber that operates your slack adjuster the part looks like a rubber frisbe when you step on your brake pedal it operates the rod to your slack adjuster.
__________________
Fkrel is offline   Reply With Quote
Old 06-24-2013, 04:26 PM   #5
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,471
NAPA has the diaphragms, usually in stock too, or at least our local one does.
__________________
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 online now   Reply With Quote
Old 06-24-2013, 07:52 PM   #6
Senior Member
 
rvjimmy's Avatar
 
Newmar Owners Club
Freightliner Owners Club
Join Date: Mar 2011
Location: Almond, Wisconsin
Posts: 1,455
If you have never change a pancake on your service brake be careful and have somebody show you how. There is a spring that sets the parking brake that has to be caged or when you take the clamp off bad things can happen..Its not that bad of job if you have done it but you need to know what you are doing.There are short cuts but with out showing you it's to hard to explain if you don't understand how things work. JMHO. Jim
__________________
2002 Newmar Dutch Star DP3569 330 CAT - Toad Jeep Liberty, DW is the Nagivator. Work to travel and everything revolves around the price of diesel.
rvjimmy is offline   Reply With Quote
Old 06-25-2013, 07:04 AM   #7
Senior Member
 
Fkrel's Avatar
 
Join Date: May 2013
Location: Minnesota
Posts: 121
Quote:
Originally Posted by rvjimmy View Post
If you have never change a pancake on your service brake be careful and have somebody show you how. There is a spring that sets the parking brake that has to be caged or when you take the clamp off bad things can happen..Its not that bad of job if you have done it but you need to know what you are doing.There are short cuts but with out showing you it's to hard to explain if you don't understand how things work. JMHO. Jim
If you do it your self HEED rvjimmy's warning the spring can kill or hurt you very bad! caging the spring is not hard to do, the chamber has two diaphrams in it the one with the spring is the park side you will want to change the service side. Depending on how old your unit is newer brake chambers have a clamp that is crimped on the park side making it unserviceable so a spring accident wont happen the service side is the one closest to the slack adjuster but the chamber still needs to be caged.
__________________
Fkrel is offline   Reply With Quote
Old 06-25-2013, 08:55 AM   #8
RV Mutant #14
 
Wayne M's Avatar


 
Winnebago Owners Club
Texas Boomers Club
Freightliner Owners Club
iRV2 No Limits Club
Join Date: Aug 2008
Location: Texas
Posts: 12,201
Most definitely get it repaired very, very soon.

Just remember that if the brakes lock up you will not come to a jolting halt, but rather a fast but gradual one. You will even have time to steer to the side of the road.

The foot pedal activation of the brakes is much more powerful than the emergency brake and the foot pedal activation will stop you much more quickly than the emergency air brakes.

It is still not something that you want to leave unattended. It is dangerous.
__________________
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2015 Winnebago Tour 42QD
RVM14
It is what it is, and then it is what you make of it.
Wayne M is online now   Reply With Quote
Old 06-28-2013, 07:57 PM   #9
Junior Member
 
Lloyd21's Avatar
 
Join Date: Jul 2012
Location: chapin, s.c.
Posts: 11
Sorry I haven't gotten back to all you folks, on the road and in a park wit limited wi-fi.
I had a hole in an air-line. Fleet Service in Asheville, NC came out to where we were parked and repaired the damaged line. What a super outfit my thanks to them (Fleet Service) and to all my RV friends. Harvey Lloyd and crew.
Just having fun!
__________________
MSG (R) Harvey and Nancy Lloyd + Ziggy, 2013 Cadillac SRS Performance toad, Brake Buddy, Sterling hidden hitch. "HAVE RV WILL TRAVEL"
Lloyd21 is offline   Reply With Quote
Old 06-28-2013, 08:00 PM   #10
Community Administrator
 
JohnRR's Avatar


 
Fleetwood Owners Club
Workhorse Chassis Owner
Join Date: Sep 2010
Location: Marquette, Michigan "Da UP"
Posts: 16,940
Thank you for the update.
__________________
John & Cathy R.
06 Pace Arrow 38L W24
08 14 Lincoln MKX AWD
See My RV Upgrades
JohnRR is offline   Reply With Quote
Old 06-29-2013, 07:49 AM   #11
Senior Member
 
rvjimmy's Avatar
 
Newmar Owners Club
Freightliner Owners Club
Join Date: Mar 2011
Location: Almond, Wisconsin
Posts: 1,455
Glad you got it fixed, and a simple fix too. Safe travels and hopefully no more problems. Jim
__________________
2002 Newmar Dutch Star DP3569 330 CAT - Toad Jeep Liberty, DW is the Nagivator. Work to travel and everything revolves around the price of diesel.
rvjimmy is offline   Reply With Quote
Old 06-29-2013, 04:00 PM   #12
Senior Member
 
JFXG's Avatar
 
Newmar Owners Club
Freightliner Owners Club
Join Date: May 2012
Location: Today? Mercer, PA
Posts: 3,615
Sometimes it can be simple. I had a problem losing air last year, and it turned out to be just a brass plug having vibrated loose from an unused port in the air dryer body.
__________________

__________________
John & Diane, Fulltimers. RVM103 NHSO
On the road since June '12 with Lincoln, the guard cat.
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element
JFXG is offline   Reply With Quote
Reply



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:20 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.