Air suspension issues (or "#%$@!" again!)

[H2 Bill]

I had the same problem. It turned out to be a leaking bag. What was weird is that it was intermitant. Some days it would stay up and others it would sag a little and sometimes it would go all the way down. It took two dealers to figure it out.....

[HUMTECH]

If this is an early model H-2 with A single stage compressor there is a programming update to address your concern, talk to your dealer tech and he should know about it. Likely the service consultant or service manager will not have the info.

[mdoyle]

I thought I'd post a follow-up here to complete the archive. I took it by the dealer and they said it's the airbags so I feel like I've dodged a bullet of sorts since the compressor is okay.

The bags were $158.00 each (thinking I saw a post here mentioning $90 each?) plus labor and will be installed this Friday.

I'd planned to look at the system this weekend, but a very enjoyable soccer tournament kept me busy. Yesterday evening I climbed under to have a look and both air bags are dry rotted and cracked badly, it's a wonder they hold air at all.

I wonder if I got a bad original set, or if some preventative protectant should be applied when the new ones are installed? It's lame that these would go out due to deteriotation at 70K miles.

[PARAGON]

Originally Posted by mdoyle

I thought I'd post a follow-up here to complete the archive. I took it by the dealer and they said it's the airbags so I feel like I've dodged a bullet of sorts since the compressor is okay.

The bags were $158.00 each (thinking I saw a post here mentioning $90 each?) plus labor and will be installed this Friday.

I'd planned to look at the system this weekend, but a very enjoyable soccer tournament kept me busy. Yesterday evening I climbed under to have a look and both air bags are dry rotted and cracked badly, it's a wonder they hold air at all.

I wonder if I got a bad original set, or if some preventative protectant should be applied when the new ones are installed? It's lame that these would go out due to deteriotation at 70K miles.

there's really no reason they should have deteriorated to that degree so quickly. They are not exposed to sunlight. The only other thing would be if certain chemicals made contact with them, maybe at a detail shop or something.

[PARAGON]

Originally Posted by HUMTECH

If this is an early model H-2 with A single stage compressor there is a programming update to address your concern, talk to your dealer tech and he should know about it. Likely the service consultant or service manager will not have the info.

x2

mine is a July '02 version and I got the update because I was having an abnormal about of cycling.

[CO Hummer]

Originally Posted by PARAGON

x2

mine is a July '02 version and I got the update because I was having an abnormal about of cycling.

So, what is an abnormal amount? Most of the time, my truck will audibly release air when I shut if off. It then pumps itself back up a bit after I start it up. I'm assuming that is normal. Maybe not!

[Agriv8r]

[PARAGON]

Originally Posted by CO Hummer

So, what is an abnormal amount? Most of the time, my truck will audibly release air when I shut if off. It then pumps itself back up a bit after I start it up. I'm assuming that is normal. Maybe not!

abnormal is it was either pumping or releasing..... it was a huffer. never held it's breath.

[Hum2]

Had numerous Air suspension sagging/cycling issues, no leaks though.

Final fix was to have it replaced with the dual stage compressor that came out with the 04's. It is also the standard replacement for the 03' as the single stage one was discontinued. No problems in the last 3 years with the dual stage.

Ric

[mblovsks]

I have an 07 and after 5.5 years, I am looking at the second time now that I've walked out to a low back end. Any ideas?

Thanks.