Autoride Not Working?

[Hess]

I have heard the compressor running on my “new” ‘03 Yukon XL (6K miles) with autoride when loading it full of people. However, since that time, I’ve started towing a 24 foot 5000lb boat with a couple hundred pound tongue weight. When hooking it up, I never hear the compressor anymore and the rear end does pitch down from the trailer.

 

Aside from bringing it in to GMC for a check / warrantee work, is there anything I can pre-check or test to verify if it’s working myself? Thanks.

[orbitron]

Does the "service air ride" light come on?

[Hess]

No "service air ride" light is on.

 

I'm also thinking that back when, I could crawl into the tailgate and here the compressor start-up. I've lost 30 pounds since then and am still a big guy, but I really think that thing isn't "auto leveling" any more.

[citydriver]

Bad fuse,or maybe the link from the valve to the axle disconnected somehow....

Did you by chance run something over?

[Hess]

Did I run something over? Nothing out of the ordinary Chicago road hazards. I'll check the fuse (which I haven't yet). Is it in the main cluster? Can I see the link you speak of if I crawl under there?

 

Thanks.

[frdfandc]

Dude, since its an 03 with only 6k on it, take it back to the dealer. Let someone else figure out the problem. I personally wouldn't try and tackle an air ride concern. Too much crap to fish through.

[Machine]

It could be the fuse, but If you're not hearing the buzzing and the rear of your Sub is dropping under load - take her back to get serviced. I hitched up a 4400# Searay to my Escalade last wkend and it buzzed and leveled the minute I started the engine.