Air Suspension Dropping

[Falcon1772]

So anyone who has the air suspension in a cold climate will know what I'm talking about when I say that the front end drops down when it gets really cold.

What I want to know is. Is there anyway to completely turn off the compressor from doing anything whatsoever? I tried pulling all the fuses and relays related to the air suspension and it still dropped.
So I'm at the point where its either A.) Check Valves are leaking allowing the suspension to drop. or B.) something is telling the trucks compressor to pull air from the front 2 shocks which results in no suspension in the front.
Had to drive home the other day with the front end completely collapsed and I never want to do that again. I would rather place 2x4s in place of the shocks than to experience the god awful bouncing and jerking of that 20 mile drive.

So I either need to figure out how to get the truck to stop doing this. Or remove the air shocks and put springs in.
Another Idea I had was to remove the on board air compressor from the equation and put schrader valves on the shocks input lines and just do everything manually.


Thoughts?

 

[ColdCase]

You probably have a leak, either through a front end fitting or valve body. It will continue to drop until you fix the leak, regardless. Pulling the compressor fuse takes the compressor out of the equation for moving nitrogen around but not a leak in the valve body.. or sticky valve.

If its been leaking for awhile, the compressor has pulled in fresh air to make up for the loss, which contains moisture which then can freeze on the valves or in lines causing a host of problems.

So the system needs purged, and you need the witech (scan tool) to do that.

If you play around with removing air shock or sealing them off, you will have to make the computer happy some way or you will always have an error displayed.

Unfortunately the least expensive option may be to trade the truck off.

 

[Falcon1772]

If it does indeed have a leak. Then why does it not have any issues staying up when the temp is above -10f? And it b1tches daily about air suspension, So the error messages are kinda whatever

 

[rvj]

Things are freezing in the cold weather. An undercarriage wash will make it work again but only the dealer can make the error message go away.