Hello!. My (2009) Rear air suspension bags are not inflating and they are bottomed out. Compressor kicks on and off as expected when the rear end is lifted and lowered (with a floorjack), so the height sensors are probably fine as well as the compressor motor. One observation, when the compressor is running, air is leaking out from the airline/port directly at the compressor/dryer and the rear bags will not inflate. I pulled the airline out of the compressor and tried blowing compressed air directly into the airline to inflate the bags, but the lines and bags do not seem to be accepting the force air, the bags won't inflate.... almost as if something is clogged in the airline somewhere, which could be causing back pressure at the compressor and hence why air is being forced out at the port on the compressor.... but that seems practically impossible (to have a 'blocked' airline) - Oh, I also traced the airline all the way from the compressor back to each bag and could not find evidence of a pinched line. I didn't put a lot of air pressure on the air line because I wasn't sure if there was a solenoid/valve at the bags that are controlled by the height sensors or PCM to close off air to the bags and if so, possibly damage those by forcing too high of pressure while they are closed.... no idea how the system operates with respect to the solenoids at the bags.
I'd like to confirm if there's a leak in one of the bags, but without being able to force air into them, I'm not sure... and I'm not thrilled about the idea of pulling them off just inspect that. You can't really see the bags because they have the metal shroud around them. Also, I assume if 1 bag is bad, they both go down (is this true?) since they are tied in to the same airline feed.
One other thought is maybe it's the compressor assembly, even though the motor works, is it possible that this is just simply a broken or bad seal at right at the airline port at the compressor? Also, I think there is a vent solenoid built into the compressor assembly as well, maybe that vent solenoid is bad and that's the issue? I just hate to replace a perfectly good compressor assembly only to find out it could be an issue elsewhere.
Anyway, anyone ever have this kind of issue with their air suspension or some other experience and can give advice?
I'd like to confirm if there's a leak in one of the bags, but without being able to force air into them, I'm not sure... and I'm not thrilled about the idea of pulling them off just inspect that. You can't really see the bags because they have the metal shroud around them. Also, I assume if 1 bag is bad, they both go down (is this true?) since they are tied in to the same airline feed.
One other thought is maybe it's the compressor assembly, even though the motor works, is it possible that this is just simply a broken or bad seal at right at the airline port at the compressor? Also, I think there is a vent solenoid built into the compressor assembly as well, maybe that vent solenoid is bad and that's the issue? I just hate to replace a perfectly good compressor assembly only to find out it could be an issue elsewhere.
Anyway, anyone ever have this kind of issue with their air suspension or some other experience and can give advice?