Home » Public Forums » GMCnet » [GMCnet] Pinhole leak in airbag
| [GMCnet] Pinhole leak in airbag [message #355279] |
Sun, 31 May 2020 18:43  |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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Well I'm just finding all kinds of weird issues this trip. I just figured out an airbag has a pinhole leak. Just a little bubble when i soap it up.
I do have a spare bag, but i dont have a socket big enough to get it off. I could walk to town, about a mile in the morning and get a socket if necessary
I'm currently about 400 miles from home in south dakota
Should i risk it? Or should i fix it ASAP?
Thanks for your consideration
Keith Vasilakes
76 Royale
On the road Chaimberlain SD
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Pinhole leak in airbag [message #355281 is a reply to message #355279] |
Sun, 31 May 2020 19:11  |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
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Probably been leaking for a long time. I would drive home. Plus your air system will make sure it does not go flat while driving.
A hitch ball wrench can usually be a pretty inexpensive 1 1/8” size to pull the airbag off it has to be swapped. Probably not cheap or easy to find in chamberlain. Maybe corn palace town menards for $10.
I found doing airbag swap without a floor jack is no fun and should really only be attempted on pavement. Jack on dirt likes to sink and go crooked.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
[Updated on: Sun, 31 May 2020 19:13] Report message to a moderator |
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| Re: [GMCnet] Pinhole leak in airbag [message #355283 is a reply to message #355279] |
Sun, 31 May 2020 19:29 |
6cuda6
Messages: 975
Registered: June 2019
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How long does it take to leak down? My one bag with a pin hole takes 2 weeks.....i have no quarms driving it but its a stock system (id probably think twice if it was a quad bag setup). But as Jim said, get a backup and in the next big town you pass grab a wrench....just in case.
Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: [GMCnet] Pinhole leak in airbag [message #355287 is a reply to message #355283] |
Sun, 31 May 2020 19:41 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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It takes overnight to go 1/2 way down with the valves off. The site we are on has the rear all the way up and it's still not quite level.
In the morning it was tilted pretty bad, but still holding some air.
I have the jack under it tonight.
The slow leak is no big deal, I'm just worried about complete failure.
Having that happen on I90 with the Co pilot already stressed out would be false economy.
There is a Napa in Chamberlain here, I think I'll just buy the dang socket and swap in the other bag
________________________________
From: Gmclist on behalf of 6cuda6--- via Gmclist
Sent: Sunday, May 31, 2020 7:29 PM
To: gmclist@list.gmcnet.org
Cc: 6cuda6@gmail.com
Subject: Re: [GMCnet] Pinhole leak in airbag
How long does it take to leak down? My one bag with a pin hole takes 2 weeks.....i have no quarms driving it but its a stock system (id probably think
twice if it was a quad bag setup). But as Jim said, get a backup and in the next big town you pass grab a wrench....just in case.
--
Rich Mondor,
Brockville, ON
77 Hughes 2600
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Pinhole leak in airbag [message #355288 is a reply to message #355287] |
Sun, 31 May 2020 20:22 |
6cuda6
Messages: 975
Registered: June 2019
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Yup....a little faster than mine.
I would get the socket and swap it as its going to be a very long ride if you don't i think....lol.
Keith V wrote on Sun, 31 May 2020 20:41It takes overnight to go 1/2 way down with the valves off. The site we are on has the rear all the way up and it's still not quite level.
In the morning it was tilted pretty bad, but still holding some air.
I have the jack under it tonight.
The slow leak is no big deal, I'm just worried about complete failure.
Having that happen on I90 with the Co pilot already stressed out would be false economy.
There is a Napa in Chamberlain here, I think I'll just buy the dang socket and swap in the other bag
________________________________
From: Gmclist on behalf of 6cuda6--- via Gmclist
Sent: Sunday, May 31, 2020 7:29 PM
To: gmclist@list.gmcnet.org
Cc: 6cuda6@gmail.com
Subject: Re: [GMCnet] Pinhole leak in airbag
How long does it take to leak down? My one bag with a pin hole takes 2 weeks.....i have no quarms driving it but its a stock system (id probably think
twice if it was a quad bag setup). But as Jim said, get a backup and in the next big town you pass grab a wrench....just in case.
--
Rich Mondor,
Brockville, ON
77 Hughes 2600
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Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: [GMCnet] Pinhole leak in airbag [message #355295 is a reply to message #355280] |
Mon, 01 June 2020 04:07 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
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I would at least go get the correct size wrench. You can buy individual sockets and wrenches at Menards or TSC or Home Depot. I believe it is 1-1/8" or 1-1/16". Take the wrench(s) out in the parking lot and try it to verify the size. Return / exchange it right then if it is wrong. You also will need a 9/16" or 5/8" wrench of the air line. Get a spray can of a good penetrating oil (Kroil or PB Blaster preferred) and soak threads and the nuts once a day for 4 or 5 days. Do this with the system aired up and coach weight on the wheels. Once you know the nuts will turn freely, you are home free. Now you are ready "Just in case". You are ready if needed.
After that, just drive it. The air system will keep it aired up automatically and you should be ready to go. If you are like me, anything that you carry parts and tools for never fails on the road.
I helped a guy just last week change 2 bags in a rest area. It took us about 10 minutes per side in the rain using 2 wrenches and a hydraulic jack (with jack hook) to do the job. We were quick about it because we were getting pretty wet.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Pinhole leak in airbag [message #355300 is a reply to message #355279] |
Mon, 01 June 2020 07:21 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I've never seen a leak improve by itself... if it were me, I'd pick up the tool(s) next stop and swap for a non leaking bag if you have one.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Pinhole leak in airbag [message #355301 is a reply to message #355300] |
Mon, 01 June 2020 08:36 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
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Actually Johnny, I have seen an air leak fix itself. My Equinox had a slow leak in the right rear tire at the rate of around 1 PSI per day. I put air in it about every 5 or 6 days. The last time I put air in it, it quit leaking and has been that way for about two weeks. All I can figure is it must have been the valve core or a rim leak. You see procrastination does occasionally pay off.
I agree that an air bag leak through the bag itself is not going away.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Pinhole leak in airbag [message #355302 is a reply to message #355301] |
Mon, 01 June 2020 09:27 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
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Whatever you do, DON'T put Green Slime in it. a month or so after I got my coach, the right air bag blew wide open right in my driveway, about a week before our inaugural trip. Evidently the PO thought he had a leak in it (it turned out to be some loose shut off valve plumbing) and put some Slime in it. It sat there in the bottom of the bag and softened it up enough that it blew the bottom right out of it.
That said, I wonder if a can of Fix-A-Flat would work as a short term fix? It is more of a latex foam than a liquid, but it would probably just settle in the bottom of the bag like the Slime did. It works okay in a rotating tire, but probably not worth the chance in a stationary air bag.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Pinhole leak in airbag [message #355303 is a reply to message #355301] |
Mon, 01 June 2020 08:59 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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I have the correct socket at how, fat lot of good that does here though.
I'm mostly concerned about the bag blowing on the trip
________________________________
From: Gmclist on behalf of Ken Burton via Gmclist
Sent: Monday, June 1, 2020 8:36 AM
To: gmclist@list.gmcnet.org
Cc: Ken Burton
Subject: Re: [GMCnet] Pinhole leak in airbag
Actually Johnny, I have seen an air leak fix itself. My Equinox had a slow leak in the right rear tire at the rate of around 1 PSI per day. I put
air in it about every 5 or 6 days. The last time I put air in it, it quit leaking and has been that way for about two weeks. All I can figure is it
must have been the valve core or a rim leak. You see procrastination does occasionally pay off.
I agree that an air bag leak through the bag itself is not going away.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Pinhole leak in airbag [message #355304 is a reply to message #355303] |
Mon, 01 June 2020 09:39 |
6cuda6
Messages: 975
Registered: June 2019
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I would be more worried about your travel partner blowing a gasket then the bag.....plus you'll have to ride with that "look" all the way home. 
Keith V wrote on Mon, 01 June 2020 09:59I have the correct socket at how, fat lot of good that does here though.
I'm mostly concerned about the bag blowing on the trip
________________________________
From: Gmclist on behalf of Ken Burton via Gmclist
Sent: Monday, June 1, 2020 8:36 AM
To: gmclist@list.gmcnet.org
Cc: Ken Burton
Subject: Re: [GMCnet] Pinhole leak in airbag
Actually Johnny, I have seen an air leak fix itself. My Equinox had a slow leak in the right rear tire at the rate of around 1 PSI per day. I put
air in it about every 5 or 6 days. The last time I put air in it, it quit leaking and has been that way for about two weeks. All I can figure is it
must have been the valve core or a rim leak. You see procrastination does occasionally pay off.
I agree that an air bag leak through the bag itself is not going away.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: [GMCnet] Pinhole leak in airbag [message #355307 is a reply to message #355302] |
Mon, 01 June 2020 11:03 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
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If you ever want the self-leveling capability to work again, DON'T put ANY
sealant in the air suspension system. It will permanently clog the
electrical and level-sensing valves.
Ken H.
On Mon, Jun 1, 2020 at 10:28 AM Carl Stouffer via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Whatever you do, DON'T put Green Slime in it. a month or so after I got
> my coach, the right air bag blew wide open right in my driveway, about a
> week
> before our inaugural trip. Evidently the PO thought he had a leak in it
> (it turned out to be some loose shut off valve plumbing) and put some Slime
> in it. It sat there in the bottom of the bag and softened it up enough
> that it blew the bottom right out of it.
>
> That said, I wonder if a can of Fix-A-Flat would work as a short term
> fix? It is more of a latex foam than a liquid, but it would probably just
> settle in the bottom of the bag like the Slime did. It works okay in a
> rotating tire, but probably not worth the chance in a stationary air bag.
> --
> Carl Stouffer
> '75 ex Palm Beach
> Tucson, AZ.
> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive,
> Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American
> Eagles,
> Solar battery charging. GMCSJ and GMCMI member
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Pinhole leak in airbag [message #355311 is a reply to message #355307] |
Mon, 01 June 2020 13:27 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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Agreed ken, ive never used that stuff. I gave the wife a can for emergency use on her car, but thats it
________________________________
From: Gmclist on behalf of Ken Henderson via Gmclist
Sent: Monday, June 1, 2020 11:03:57 AM
To: GMC Mail List
Cc: Ken Henderson ; Carl Stouffer
Subject: Re: [GMCnet] Pinhole leak in airbag
If you ever want the self-leveling capability to work again, DON'T put ANY
sealant in the air suspension system. It will permanently clog the
electrical and level-sensing valves.
Ken H.
On Mon, Jun 1, 2020 at 10:28 AM Carl Stouffer via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Whatever you do, DON'T put Green Slime in it. a month or so after I got
> my coach, the right air bag blew wide open right in my driveway, about a
> week
> before our inaugural trip. Evidently the PO thought he had a leak in it
> (it turned out to be some loose shut off valve plumbing) and put some Slime
> in it. It sat there in the bottom of the bag and softened it up enough
> that it blew the bottom right out of it.
>
> That said, I wonder if a can of Fix-A-Flat would work as a short term
> fix? It is more of a latex foam than a liquid, but it would probably just
> settle in the bottom of the bag like the Slime did. It works okay in a
> rotating tire, but probably not worth the chance in a stationary air bag.
> --
> Carl Stouffer
> '75 ex Palm Beach
> Tucson, AZ.
> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive,
> Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American
> Eagles,
> Solar battery charging. GMCSJ and GMCMI member
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Pinhole leak in airbag [message #355314 is a reply to message #355279] |
Mon, 01 June 2020 15:59 |
Tilerpep
Messages: 404
Registered: June 2013
Location: Raleigh, NC
Karma: 7
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I drove home 200 miles from the beach with the 4x4 wood timber solution in place once. Really was not a problem. If you are worried about the bag blowing or dropping, the wood would at least be consistent. Does not change driver experience much. Just the pain of a semi-controllable road trip repair, instead of an uncontrolled road side repair - very different.
I had a plastic cone rupture early in my ownership (before I knew to replace them) and it cut the bag. ALL early model owners, especially new owners, verify you do not have plastic cones!
1975 Glenbrook, 1978 Royale rear bath
Raleigh, NC
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| Re: [GMCnet] Pinhole leak in airbag [message #355322 is a reply to message #355314] |
Mon, 01 June 2020 17:56 |
Emery Stora
Messages: 959
Registered: January 2011
Karma: 4
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Years ago I had made a temporary bag replacement using a 3/4” threaded rod purchased from ACE hardware together with nuts and washers
I cut it to 18” and replaced the bag with it. I drove 400 miles to get a new bag. It rode fairly well.
Emery Stora
>> On Jun 1, 2020, at 3:00 PM, Tyler via Gmclist wrote:
> I drove home 200 miles from the beach with the 4x4 wood timber solution in place once. Really was not a problem. If you are worried about the bag
> blowing or dropping, the wood would at least be consistent. Does not change driver experience much. Just the pain of a semi-controllable road trip
> repair, instead of an uncontrolled road side repair - very different.
>
> I had a plastic cone rupture early in my ownership (before I knew to replace them) and it cut the bag. ALL early model owners, especially new owners,
> verify you do not have plastic cones!
>
>
> --
> 1975 Glenbrook, 1978 Royale rear bath
> Raleigh, NC
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Pinhole leak in airbag [message #355330 is a reply to message #355313] |
Mon, 01 June 2020 21:15 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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I still wouldnt use it unless i had to!
________________________________
From: Gmclist on behalf of Matt Colie via Gmclist
Sent: Monday, June 1, 2020 2:30:08 PM
To: gmclist@list.gmcnet.org
Cc: Matt Colie
Subject: Re: [GMCnet] Pinhole leak in airbag
Ken Henderson wrote on Mon, 01 June 2020 12:03
> If you ever want the self-leveling capability to work again, DON'T put ANY sealant in the air suspension system. It will permanently clog the
> electrical and level-sensing valves.
>
> Ken H.
Ken,
This is Keith Vasilakes (the developer of Micro-Level)
His air system only has two simple valves per side and if the exhaust valve is a teflon seat (not uncommon), it could probably handle that stuff in
the valve.
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Pinhole leak in airbag [message #355332 is a reply to message #355322] |
Mon, 01 June 2020 21:16 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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I got it fixed. 1 hour 10 minutes. Its nice having an impact wrench around when you need it!
Could use a bigger air compressor tho lol
________________________________
From: Gmclist on behalf of Emery Stora via Gmclist
Sent: Monday, June 1, 2020 5:56:37 PM
To: gmclist@list.gmcnet.org
Cc: Emery Stora
Subject: Re: [GMCnet] Pinhole leak in airbag
Years ago I had made a temporary bag replacement using a 3/4” threaded rod purchased from ACE hardware together with nuts and washers
I cut it to 18” and replaced the bag with it. I drove 400 miles to get a new bag. It rode fairly well.
Emery Stora
>> On Jun 1, 2020, at 3:00 PM, Tyler via Gmclist wrote:
> I drove home 200 miles from the beach with the 4x4 wood timber solution in place once. Really was not a problem. If you are worried about the bag
> blowing or dropping, the wood would at least be consistent. Does not change driver experience much. Just the pain of a semi-controllable road trip
> repair, instead of an uncontrolled road side repair - very different.
>
> I had a plastic cone rupture early in my ownership (before I knew to replace them) and it cut the bag. ALL early model owners, especially new owners,
> verify you do not have plastic cones!
>
>
> --
> 1975 Glenbrook, 1978 Royale rear bath
> Raleigh, NC
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
GMCnet mailing list
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_______________________________________________
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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