GM Tech (Cam) : Hello, I’m Cam. Please include all the details about your issue so I air max can accurately advise you. I air max cannot see your vehicle so please be detailed.
GM Tech (Cam) : The air bag system on these is a single system, the compressor pumps up then the hose Tees off to both sides.
GM Tech (Cam) : However, if it takes that long to down and pumps up fine then it is not at all critical that you fix it yet. When the compressor is ru air max nning far too often, then it is. You will also receive an email when your question is updated. Experts are credited for each accepted answer they provide.
From what they described to me, there are 2 lines coming off the compressor, 1 to each side not a tee. Is that accurate?
This is my concern: the xuv goes flat by dropping about 8 12 inches within 6 hours. Long term I concerned about the effect on compressing the shocks coils for hours on end. I also tow a boat with a 300 400 lb tongue weight and don want to have the air compressor running constantly while I towing between 1 6 hours or to have the air compressor wear out and die while I towing.
OK, The problem’s gotten worse. I’m suspecting something to do with a load leveling sensor of some kind. I’m getting mixed messages: You my mechanic both told me the compressors basically have a hot, ground in 2 air lines coming out. 1 to the trunk, 1 to a tee for each air bag. The compressor’s check valves etc are self contained. The compressor’s been replaced by a GM OEM compressor and it’s still dropping. It may stay inflated for 3 days, and drop within 10 minutes on other days. That behavior doesn’t act like a hole or leak. I’ve also noticed the new compressor will pump for about a 90 second cycle to fully inflate the back of the XUV. Other times when it’s bottomed out, it cycles for 8 11 seconds. The 8 11 second cycles indicate to me that the sensors think the truck’s sitting level and needs no more air.
The local mechanic said there are 2 sensors on the shocks that detect if the truck is level or not. Is he accurate, or not? With any sensor being external to the compressor, I was given incorrect information regarding the compressor because it is not self contained then, and does not have only a hot, ground pair of air lines. What’s the real story here? I’ve lost 2 vacations so far because the truck can’t be reliably driven. It’s taken me over 30 shut off starts before the compressor realizes the truck is sitting low. Last night I stopped restarted the engine 17 times and the compressor would cycle for 8 9 seconds and shut off leaving the truck near bottomed out. I Let it sit off for 3 hours, started it once and it fully inflated the rear in
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