Weird suspension fault- I need help!
Center block ONLY holds back reservoir air. It will have zero to do with front/rear struts as it controls no flow to them at all. If you pulled the center and got no air that means the reservoir was empty or leaks and that the gallery was empty.
The two larger lines on the pump never hold pressure, they are just intake/exhaust. The third smaller connects to the center block and is just part of the gallery.
How does the rear bag itself feel? Maybe something is indeed plugged in the port. Try poking it with a small metal probe? You should be able to remove the port itself form the strut - again, make sure vehicle is supported! It is also possible the internal shock has failed and bound up somehow.
The two larger lines on the pump never hold pressure, they are just intake/exhaust. The third smaller connects to the center block and is just part of the gallery.
How does the rear bag itself feel? Maybe something is indeed plugged in the port. Try poking it with a small metal probe? You should be able to remove the port itself form the strut - again, make sure vehicle is supported! It is also possible the internal shock has failed and bound up somehow.
Last edited by lockdoc; Dec 18, 2022 at 02:07 PM. Reason: Adding picture
You said the height sensors move freely…. They should move more like they are stuck on peanut butter. Not real loose in other words…
you stated left side was down but right side up….this gives me a thought that it’s the center valve block
I would put the truck on Jack stands, and release the air from the airline on that strut or at the center valve block. Then go through the recalibrate procedure and test from there
you stated left side was down but right side up….this gives me a thought that it’s the center valve block
I would put the truck on Jack stands, and release the air from the airline on that strut or at the center valve block. Then go through the recalibrate procedure and test from there
Todays update. I removed the offending air spring/strut and I can not force any air in nor get any air out of it. It is an Arnott and I will call them in the morning however I think this is simply the problem! Once I removed that I was able to deflate the system of air via the iLand device. Along with the other parts on order which I may end up keeping for future repairs or preventative maintenance I think I will need a new air spring. This one was replace a few years back and as far as I know the others may be originals! Go figure~!!! The fitting on top of this air spring is locked in place with a split ring and given the amount of pressure that has to be on it I don't want to try to remove it I don't think. It will shoot through whatever it is pointed at like a bullet I'm guessing. It is likely more sane to just order another air spring and be done with it!
You can try a socket on the fitting I think. May be safer, less chance of distortion of it. And indeed call Arnott. At face value it would seem like something inside the strut has failed in some way. I still dont get it thought, very odd. Who knows, Arnott may warranty it anyway - probably not - but indeed call em.
FYI on the valve blocks, unless OEM they can be an issue.
FYI on the valve blocks, unless OEM they can be an issue.
You can try a socket on the fitting I think. May be safer, less chance of distortion of it. And indeed call Arnott. At face value it would seem like something inside the strut has failed in some way. I still dont get it thought, very odd. Who knows, Arnott may warranty it anyway - probably not - but indeed call em.
FYI on the valve blocks, unless OEM they can be an issue.
FYI on the valve blocks, unless OEM they can be an issue.
Just a quick update today. Arnott is sending me a new air spring to replace mine that has malfunctioned. I had to pay for it but as soon as they get my old one they will reimburse me 100%. I have nothing but good to say for this company. Great customer service!
The new one won’t be in until Friday or so. I’ll update after installation.
The new one won’t be in until Friday or so. I’ll update after installation.
Ok it is time to update this thread. I received my new Arnott air spring on Thursday last week so I waylaid my other plans and installed that. Immediately afterwards the vehicle was obviously no longer in extended off road height on that corner....progress! I had also installed a new ride height sensor in that corner just to make sure to cover my bases. I bought a rear pair of sensors and I picked the wrong one to install so I got another fault added to the C1A00-54 permanent that I have been trying to get rid of. I was waiting on the central valve block so I left the Rover to sit and think about its' behavior all weekend until I could get back to it today. Installed the new central valve body and managed (by going through special functions of the iLand) to get the Rover to normal ride height! Still sporting the red permanent fault though.....I tried calibrating the ride height on all corners but it would fail as I still had the red light on the dash and my up/down switch was also not functioning at all while enduring this red light fault. I took the Rover for a test drive to see how it would behave at speed as I was about ready to drive to some help to reflash the system or something. It drove fine. I sat and scratched my head once more and revisited the special functions programs where I discovered one I had NOT looked at yet for tight tolerances. I don't remember what the top choice was but as soon as I saw "normal function" I clicked that and my red light immediately went away!!! I checked for codes and there were NONE and I tested my height selector switch and it works now and the vehicle goes up and down like it should! I am off now to recalibrate my height positions one last time but I wanted to come back here and update those that are following this thread first.
Thanks for the inputs given. I am quite relieved at this point as like I mentioned above I was ready to throw in the towel almost!
Thanks for the inputs given. I am quite relieved at this point as like I mentioned above I was ready to throw in the towel almost!
G'day Mate, new to the forum. I was Squinting reading this waiting for the part where you say the pressure popped the valve or something crazy. The amount of pressure on that corner must've been ''a little''.to say the least! Mine often sags on rear left after sitting for awhile.. But getting stuck in the raised position on one corner just sounds scary to work on. Good on ya for sorting it out. ''Where there's a will there's a way''.. Greetings from Down under.
Well stay tuned if you care to....my saga is NOT over yet like I thought it was! I was not able to recalibrate the suspension without it tripping that red fault light again. I also cannot lower the LR3 into access mode without it going right up into extended off road height mode! It has to be sensor(s) and I just ordered all 4 new Land Rover OEM replacements. I am going to take the guess work out of this and replace all of them. Hopefully that will set things right in my Rover world again! I can at least use it in the meanwhile without codes or issues as long as I don't try to lower the Landy.


