I have a new to me lr3 now and am battling air suspension issues.
Symptoms:
-ok driving around in normal mode but compressor seems to run often and for long periods of time. No codes/errors thrown though.
-going up or down is a bit “bumpy” in the front.
-if i go on tough terrain (gravel road, over a curb, etc - anything other than Asphalt basically) compressor runs almost non stop, and there is constant intermittent air being exhausted out (makes a “psss” sound like when you drop the suspension on purpose but it only lasts 1-2 seconds and repeats every 5 seconds or so.)
I get an eas fault, compressor stops running (says standard height only but doesn’t Compressor doesn’t run) and front suspension drops
-front left air shock drops to bumpstop. Front right also drops but not right to the bump stop
-rear end doesnt drop
-restarting car clears faults.
-no leaks found via. Soapy water test and no drop leaving car overnight with battery unhooked
-fault codes thrown:
C1A20 pressure increases too slow when filling reservoir
C1A13 pressure does not decrease when venting gallery
I pulled the f26 fuse today when off road and 5 hours later suspension didn’t drop at all. No air lost. No issues what so ever.
So that means for some reason when the eas is active the front valve block is open letting air out, and the compressor valve block is open to let air through to exhaust. Regardless this confirms the valve
Blocks are not leaking on their own. So why would they be open and exhausting air when active? And only the front?
I’m guessing bad compressor or pressure sensor - so the compressor isn’t charging to a high psi but thinks it is, opening valves to put air in the shocks, but it’s flowing backwards and out. Giving me the long air pressure code, and loosing pressure when it should be rising?
When parked I can go from access to off road without problems other than slow to rise after going up and down twice or so, and the front rises and drops a little bit bumpy / jumpy (not a smooth rise or fall).
I also had a thought that the air exhausting could be the system releasing pressure from the front right spring, to self level the front, because the left front shocks is leaking air and falling. It’s not the shock,its brand new it was replaced for this reason. That means air could be escaping past the front valve block left wheel port?
thank you!!
Symptoms:
-ok driving around in normal mode but compressor seems to run often and for long periods of time. No codes/errors thrown though.
-going up or down is a bit “bumpy” in the front.
-if i go on tough terrain (gravel road, over a curb, etc - anything other than Asphalt basically) compressor runs almost non stop, and there is constant intermittent air being exhausted out (makes a “psss” sound like when you drop the suspension on purpose but it only lasts 1-2 seconds and repeats every 5 seconds or so.)
I get an eas fault, compressor stops running (says standard height only but doesn’t Compressor doesn’t run) and front suspension drops
-front left air shock drops to bumpstop. Front right also drops but not right to the bump stop
-rear end doesnt drop
-restarting car clears faults.
-no leaks found via. Soapy water test and no drop leaving car overnight with battery unhooked
-fault codes thrown:
C1A20 pressure increases too slow when filling reservoir
C1A13 pressure does not decrease when venting gallery
I pulled the f26 fuse today when off road and 5 hours later suspension didn’t drop at all. No air lost. No issues what so ever.
So that means for some reason when the eas is active the front valve block is open letting air out, and the compressor valve block is open to let air through to exhaust. Regardless this confirms the valve
Blocks are not leaking on their own. So why would they be open and exhausting air when active? And only the front?
I’m guessing bad compressor or pressure sensor - so the compressor isn’t charging to a high psi but thinks it is, opening valves to put air in the shocks, but it’s flowing backwards and out. Giving me the long air pressure code, and loosing pressure when it should be rising?
When parked I can go from access to off road without problems other than slow to rise after going up and down twice or so, and the front rises and drops a little bit bumpy / jumpy (not a smooth rise or fall).
I also had a thought that the air exhausting could be the system releasing pressure from the front right spring, to self level the front, because the left front shocks is leaking air and falling. It’s not the shock,its brand new it was replaced for this reason. That means air could be escaping past the front valve block left wheel port?
thank you!!
Last edited: