L322 EAS blues...she won’t lift off the bump stops

2009 Range Rover L322 North American Petrol.

Here’s what I think I know.

Gradual loss of ride height starting with front right corner.

Weeks later, hard fault and down on the bump stops.

Oddly, if fault was reset using lock to lock steering wheel technique while passenger door was open, car would rise to standard level after door closed and continue to work for a few days. This would only work if reset was done with passenger door open and then closed.

Eventually that technique stopped working.

Independent Shop visit diagnosed front solenoid leveling valve faulty.

Replaced that part (RVH500060), cleared faults, but car does not rise.


Icarsoft reports that gallery pressure rises to 180+psi with door open. When door is closed, dash reports “car rising slowly “. But car does not rise and then reports “car will rise when compressor cools” after less than 5 minutes. Gallery psi drops to 50ish psi.

But that does not happen. Doesn’t raise.

Since the gallery pressure rises to 180+psi and then falls to 50psi when door closes I’m suspecting a leak somewhere.

However here are other codes thrown inconsistently:
U0421
U0132
C1130
C1A13
U0401

One additional item.
This morning with all faults cleared, she would lift to standard height then spontaneously drop after about 1 minute to “off-road” height with dashboard message “Reset Height if obstacle is clear” followed by “Extended Mode”

All advice welcomed!!!
Thanks in advance.

Leaking air spring would be my bet.

Datatek said:

Leaking air spring would be my bet.

Click to expand...

Hoping that’s the case. I’ll tackle this next and report back.
Thanks
George

Followed the Arnott video on removing the front right air bag and am stuck at the point of removing the two bolts indicated in the attached image. They appear to be binding because of pressure on the fittings and I cannot budge them even with a cheater bar. Banged on them to see if I could drive them out, but no go. Air bag is completely empty and flaccid.
Should I try to put a jack under the suspension arm at base of strut and gently lift to see if that relieves the pressure? Do not want to proceed without some expert advice...

Thanks in advance for your advice.

Throw the nuts back onto the bolts, but NOT so far as to expose the end of the bolt threads, then merrily beat the nuts half to death with a club hammer.

They will budge, it's just rust.

Once off, clean off the rust and liberally coat them in copper grease, the whole bolt.

myfirstl322 said:

Throw the nuts back onto the bolts, but NOT so far as to expose the end of the bolt threads, then merrily beat the nuts half to death with a club hammer.

They will budge, it's just rust.

Once off, clean off the rust and liberally coat them in copper grease, the whole bolt.

Click to expand...

As the good man above says.........however without teaching you to suck eggs.......as with your attached picture, with the nuts screwed on make sure you hit the nuts 'backwards' !!

robhew86 said:

As the good man above says.........however without teaching you to suck eggs.......as with your attached picture, with the nuts screwed on make sure you hit the nuts 'backwards' !!

Click to expand...

Lots of penetrating oil and turn the bolt whilst persuading it with the hammer.

Thank you much! That's exactly what I dis and it took a hefty hammer and a 1 meter cheater bar to get the things out, but it worked. Hallelujah.

myfirstl322 said:

Throw the nuts back onto the bolts, but NOT so far as to expose the end of the bolt threads, then merrily beat the nuts half to death with a club hammer.

They will budge, it's just rust.

Once off, clean off the rust and liberally coat them in copper grease, the whole bolt.

Click to expand...

A merry time was had by all! Wham! Thanks for the tip.
George