Air bag Dump!!!

[HUMMERDAD]

Ok I know there is alot of talk about the air bag systems but mine did sometihing different. We have relocated back to chicago and when we did this i towed a Uhaul trailer with about 6000 in it. when in the middle of texas and oaklhoma the air bags suddenly dumped all the air out sparks where flying from the chains. We pulled off the side of the hiway and cranked up the chaines nursed it to the next rest stop to check it out. I crawled under and saw no damaged items no holes in the air bags nothing started the truck and the system aired itself back up any suggestions? now sence then the bags are working intermitly going down sometimes but the compressior pumps right back up :no:

 

[alrock]

Obviously a leak somewhere but I wouldn't know where to look. Maybe get some soapy water on them and put some weight on the back, and look for a leak, just like for a tire.