Avalanche Air leak????

[ltemtmike]

OK, I've been hearing what sounds like an air leak, actually it sounds more like someone opening a bottle of soda, you know that pffffffft sound... I'm thinking it's just some sort of pressure relief on the lumbar support or something, but not sure.  It sounds like its coming from underneath the passenger seat and I've heard it a couple of times now mostly when the interior air starts to warm up on a cold day. Has anyone heard this or know what it might be?

[ScottS]

Maybe try letting all the air out of the bladders for the lumbar and bolsters, and see if it stops.  If the air is pumped all the way up, perhaps when the interior warms, the system vents some air to stay at a safe pressure.

 

For what it's worth, just a guess.  Haven't noticed anything like that on my Av2500.

 

Scott