Beyond irritating air ride suspension issue

[Mickysticky]

Aero mode? I lose air volume in the drivers side shocks after an hour of high way driving and the suspension becomes bouncy (lack of air pressure). Parked in normal mode? Deflates toward the back left sometimes, but usually both drivers side deflate. Or sometimes it doesn’t lose any air. At all. Park in off-road 2, most of the time it remains the same and loses no air but sometimes both rear shocks deflate. I try to re-inflate the shocks holding still, in park, it takes a ridiculous amount of time and sometimes you can tell the truck is lowering, raising, lowering and raising again during the process. But when I’m driving, it raises fine, on command, 99% of the time.. I’ll check everything within the next couple weeks, but where should I start? Sensors, pump and adjacent valve body, or the shocks themselves? I also can’t imagine I don’t just delete the air suspension after this one..

 

[mrack]

Find used 4th or 5th gen struts and rear coils on marketplace, get rear coil isolators off eBay and swap it out. Don’t pay thousands for overpriced air delete kits. All you need is struts, springs and cool isolators.

 

[mandmparv]

Aero mode? I lose air volume in the drivers side shocks after an hour of high way driving and the suspension becomes bouncy (lack of air pressure). Parked in normal mode? Deflates toward the back left sometimes, but usually both drivers side deflate. Or sometimes it doesn’t lose any air. At all. Park in off-road 2, most of the time it remains the same and loses no air but sometimes both rear shocks deflate. I try to re-inflate the shocks holding still, in park, it takes a ridiculous amount of time and sometimes you can tell the truck is lowering, raising, lowering and raising again during the process. But when I’m driving, it raises fine, on command, 99% of the time.. I’ll check everything within the next couple weeks, but where should I start? Sensors, pump and adjacent valve body, or the shocks themselves? I also can’t imagine I don’t just delete the air suspension after this one..

Aero mode? I lose air volume in the drivers side shocks after an hour of high way driving and the suspension becomes bouncy (lack of air pressure). Parked in normal mode? Deflates toward the back left sometimes, but usually both drivers side deflate. Or sometimes it doesn’t lose any air. At all. Park in off-road 2, most of the time it remains the same and loses no air but sometimes both rear shocks deflate. I try to re-inflate the shocks holding still, in park, it takes a ridiculous amount of time and sometimes you can tell the truck is lowering, raising, lowering and raising again during the process. But when I’m driving, it raises fine, on command, 99% of the time.. I’ll check everything within the next couple weeks, but where should I start? Sensors, pump and adjacent valve body, or the shocks themselves? I also can’t imagine I don’t just delete the air suspension after this one..

I've had this same problem for over a year. I took it to the dealer once but they couldn't find anything wrong. It worked fine while at the dealer. Lately the problem has been much more consistent. Did you ever figure out the cause?

 

[jimmylangley]

I would bet the culprit is in the valve body. I had basically the same problem and when hooked up to Alpha, I kept getting the error of an exhaust valve open. Absent any other leaks in the bags or lines, Id swap the valve body.

 

[jimgad]

I have very similar. 2015 Ram Rebel - when I park - 75% of the time after like 20 min if I go look, the driver side rear has lowered. I measured top of tire to body and passenger side is 5" and driver side 3".
Dealership looked at it and said had no leaks. ugghhhh

 

[Glen OS]

I had to stop using Aero mode for the same reason, but would only affect the rear springs. Lately it was doing more often in normal mode. Would hold air in offroad 1 and 2. I did add airbrake antifreeze, that helped a bit. Was thinking it was valve block. Brought to dealer, ended up being rear springs. Expensive but system works great now.
Will add the antifreeze again as winter returns.