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Topic: Causes for premature internal airbag failure (Read 628 times) previous topic - next topic

Causes for premature internal airbag failure

I replaced this bag less than a year ago and only have a few thousand miles on it. The only thing that I can think would cause it to fail this soon is sitting out in the Phoenix sun all summer long at the shop. Any other ideas what my cause it? Faulty bag? Sitting unlevel with no air for too long?  It's an internal failure manifested by bubbling all around the base plate. 

Any reason I can't/shouldnt swap this out with a different brand bag?
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Causes for premature internal airbag failure

Reply #1
Maybe the bag retainer bolt is too long and ran into the bag , through the nut insert .

Re: Causes for premature internal airbag failure

Reply #2
Defective bag would be my opinion.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Causes for premature internal airbag failure

Reply #3
Get a Firestone or Contitech,havent heard of them failing,could the installer have super tightened them?
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Causes for premature internal airbag failure

Reply #4
Didn't you go off-roading in your Foretravel awhile back and afterwards have a bunch of work done on the front end?  Maybe the leakage that bag is experiencing is a product of it.

Re: Causes for premature internal airbag failure

Reply #5
Elliott, you are becoming the Beta tester for a lot of us!!! :))  Sounds like a defective bag to me.  Goodyear quit making bags for the old GMC Motorhomes last year, probably for good reason.  I have never heard of a Contitech bag failure in our model coach application FWIW.  Woody.
2001 4010 U320 build #5865 "Bluto-d-Bus" since 09/18
2006 Honda Element ESP Toad
Full timing since 2016 in Western MT
Copilot: Sitka
1975 GMC 260 Avion: sold

Re: Causes for premature internal airbag failure

Reply #6
,could the installer have super tightened them?
I'm confident that didn't happen because myself and Pyolet were the installers.

Didn't you go off-roading in your Foretravel awhile back and afterwards have a bunch of work done on the front end?  Maybe the leakage that bag is experiencing is a product of it.
Possible I suppose but the rear end was largely level and didn't have any issues during the incident.

Elliott, you are becoming the Beta tester for a lot of us!!! :)) 
:headwall:
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Causes for premature internal airbag failure

Reply #7
When you get that mofo off bench test it with air,would love to see where the leak is.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Causes for premature internal airbag failure

Reply #8
Any brand will do.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Causes for premature internal airbag failure

Reply #9
Looks like Elliot put the bubbles on the air bag and they dripped down to the base and he saw the leak,good catch Elliot,will
check the bases on mine.
Let's do an expierment,as many of us that can and want to check the air bag bases and see what comes up,and when we change/replace a bag bench test to see if air leaks at the bottom bolt area.Agree with Pierce that any bag will do but if all
brands are equal and we mostly have Firestone and Contitech you would think they would be leaking,think Elliot just got a
bad bag.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Causes for premature internal airbag failure

Reply #10
Torque for that bolt is only 25ft #s.

Re: Causes for premature internal airbag failure

Reply #11
Looks like Elliot put the bubbles on the air bag and they dripped down to the base and he saw the leak,good catch Elliot,will
check the bases on mine.
Let's do an expierment,as many of us that can and want to check the air bag bases and see what comes up,and when we change/replace a bag bench test to see if air leaks at the bottom bolt area.Agree with Pierce that any bag will do but if all
brands are equal and we mostly have Firestone and Contitech you would think they would be leaking,think Elliot just got a
bad bag.
Three of the 8 Goodyear bags that I replaced over the last year had failed internally too. I just assumed it was a matter of time before the rest went which is why I have been replacing them all.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Causes for premature internal airbag failure

Reply #12
Maybe they work great in the trucking industry but the way our coaches sit for longer periods they are no bueno.
96 U270 BUILD 4810
85 380SL
Drummonds TN.



Re: Causes for premature internal airbag failure

Reply #15
I hope these are not the bags for a Foretravel. Page 11 shows only 2,000 lbs. load per pair of the bags that look like the ones I have. and 100 psi. max pressure.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Causes for premature internal airbag failure

Reply #16
Those are the "booster type" that you put on a pickup for added support,I researched Elliot's part number and it matches,the number is on the side of the bag in his picture.
96 U270 BUILD 4810
85 380SL
Drummonds TN.


Re: Causes for premature internal airbag failure

Reply #18
Inferior batch of airbags that fail internally within the first 3 years.. I've bought a hundred or more over the years for trucks, trailers and coach.. "Have owned many trucks", and have never had that kind of early failure. Many of us have them last 20 years on our coaches.. Much harder life on 80,000 lb trucks.
Dub McBride 1996 270

Re: Causes for premature internal airbag failure

Reply #19
Maybe the Bags are wanting to give Goodyear the same reputation there RV tires have.
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago