I have an 06 LR3 with about 120K miles. Noticed Suspension settling overnight to acces height. My Independent Mchanic found a leak in R Front airbag and a very small leak in L Frnt. Went ahead and had both replaced. Next morning the front was lowered but rear was not. Took it back and they found a small leak at front of Compressor. Replaced that yesterday. Came out this morning and front was lowered again. No fault lights ever came on during any of this and no codes stored. Just knew I had had a leak somewehere.

Is this really an issue or any ideas where else to look for leak or cause of front lowering?

 

My 06 is doing the same thing. I raised the truck to off-road height, removed the fuse (F26) and the next day the front was at access height (Probably lower) and the back was not. Without the fuse removed, the entire truck will be at access height in the morning. My issue is the front air block is leaking internally. Searching here, it seems to be a easy fix. I have not done it yet... Currently the "Honey-Do" list won't allow the time. :-)

 

If both front lowered evenly, it's probably a leak in the crosslink valve. I think.

 

Yeah. This.

 

This happened to me a while back and I fixed it by changing out the front air block. Easy job took me about 45 minutes.

 

Thanks all. Other research leads me to same conclusin. This will be next try.

 

Please let us know how it works out. We of course like to know solutions that work but perhaps more significantly, what does not work.

 

Having the same problem in the rear of my 3. LR tech told me to change the valve block and its a 50/50 chance that will solve the problem.

 

Yeah this logic is so childish.. and why most mechanics shouldn't be allowed to diagnose, especially if they dont understand how the systems work.

Rear left bag lowered when you come out in the morning? Mechanic thinks "oh, must be a leak in left rear bag somewhere.

There are a thousand things that might cause that! Any compromise of the lines or valve blocks (there are a few) would do the exact same thing, and it honestly more likely.

Gr.

/rant

Anyways, yeah.. shoot for the valve block first, but having said that Arnott has some good options for the fronts I think (or maybe rear? .. they only have one though but I forget). I've been running the lifetime ones on my DII and they're perfect.

 

Changed the Front valve Block Weds. Truck was on rails again sometime after 10 hours............. Any other thoughts? Ride Height Sensor?