2008 air bags don't hold air overnight

[tdinardo]

How common is it for an air ride equipped truck to not hold its air overnight?

I had it into the dealer, who saw it happen while it was there, said it wasn't supposed to do that, but also could not find anything broken. The bags refill about a half mile after I start driving.

What is odd is that this is somewhat intermittent in that it will happen a few days in a row and then not for a few days. It's driving me nuts.

Any ideas?

 

[5gn-h3t]

This is a common problem. Could be a bunch of things. A coil spring conversion will definitely fix it!

 

[Zach]

More than likely the airbags. Have replaced mine a few times already

 

[tdinardo]

wonderful....

 

[scoreh3]

My neighbors H2's air ride is leaking and he's tried to fix it , but the coil conversion sounds like a better fix. Is the conversion a kit or custom conversion ?

 

[Synthetickiller]

My neighbors H2's air ride is leaking and he's tried to fix it , but the coil conversion sounds like a better fix. Is the conversion a kit or custom conversion ?

I've never done it, so I can't comment on which kit, but if you google "H2 coil spring conversion," you'll find your answer. As for which is the best kit, I can't speak to that.

 

[scoreh3]

Thanks I will check and tell him . This is what I like about this forum , you learn things you didn't know you needed to know .

 

[twinmill28]

Pants on the ground, pants on the ground. My deuce has joined the "dog dragging butt club". Pretty sure it's the bags as I hear the pass. side blowing air the other day. Of course I'm out of town for two weeks so it's got to wait 'til I get back. Not like there's a massive rush to replace the bags in El Centro's 110 degree temps.

Do you guys have recommended source for replacement bags? I'll check the usual, Ebay, Rock Auto, under Zach's truck (but I think he might be catching on to me as he painted his last set of bags bright pink and in order to match up my old ones to put under his truck I couldn't get the paint off my fingers for a week plus my new bags were kind of, uh, Fabulusss!).

Oh and since I actually tow ALOT with the deuce, no goofy recommendations to lower my standards and go with springs (ugh)

 

[Zach]

Good ole Twin! Bags are a fairly easy and inexpensive replacement. I don't tow, but love the ride compared to springs. It is noticeable

 

[twinmill28]

So what bags do I use? Rock Auto lists some aftermarket looking junk for about $100 each but I don't want to find out the hard way.
Any good sources?

 

[tdinardo]

Also, what is the best method to confirm that the bags are actually the failed part. Nothing worse than replacing stuff only to find out it wasn't the broken part.....

 

[Zach]

Get a spray bottle with soap and water. Squirt the air bags really good and look to see if there are any bubbles. If so, air bags are toast

 

[HUMMERDAD]

Make sure to get it up off the ground too thats where my bags were leaking so you could not see it until she was on the lift up off ground suspension fully flexed. with truck sitting on the bags my leak was on the bottom of the bags so it didn't always leak at first, but when the they where fully expanded out you could see the wholes with the soapy water.

 

[Fish]

I replaced my airbags a few months ago http://www.hummer4x4offroad.com/forum/showthread.php?9569-Worn-out-airbags

these were the original 2005 bags so they lasted awhile. Dealer and repair shops wanted $189 per bag ( not installed ). I found GM bags online for $117, I forgot where but I'll try and find it. Just search GM parts and start checking prices.