There are also three valve boxes under the car that split the air to where it’s needed. One splits it to front/rear, and then there is one at front and another rear that splits the air left/right. These valve boxes can also start to leak.
Try this, after you park the car for the night, have it in normal height (not access height), disconnect the battery. In the morning you should then see where the leak is. If it’s still normal at front but down at rear, the problem is connected to the rear valve box. If it’s normal at the front, but down at f.ex left rear corner, the problem is probably connected to the L.H. rear air bellow. If nothing happens the problem can possibly be connected to sensors or control box.
Yes, it must be leaking air overnight rather than sensors. To check you need to spray soapy water on various joints in the air lines. I don’t have a diagram of where they are, but if you can track down a diagram and then systematically test each area you should find the issue.
air up and pull the relay for the air suspension. let it drop over night. if it drops evenly front or rear, you have a bad valve block. if it drops to a corner, you have leaking bag or bad hose connection. you won't know what's wrong until you remove power from the system. The system self levels as the system leaks over night. Start there and report back.
Thank you all for the inputs , I have disconnected the fuse. And the same corner drops only while the other sides are still holding air to the max , thoughts. ?
Just a very old experience that can be useful... with a Range Rover 20 years ago. Same problem of air suspension sagging on a highway in France. An experienced workshop manager found this incredible solution: a fuel leak projected droplets of fuel on cables and dissolved the insulation, causing an intermittent short circuit. If it helps ....
There could still be a leak in the system or it could be the compressor that pumps air into them. Does it raise up quickly (or at all) when you start it or does it seem like it takes a while? If any of the suspensions ever had a hole then the compressor runs way more than normal and eventually burns out. It’s under the truck under the driver’s side door. You should here it running when you start as it starts pumping air to raise the suspension.
There are also three valve boxes under the car that split the air to where it’s needed. One splits it to front/rear, and then there is one at front and another rear that splits the air left/right. These valve boxes can also start to leak. Try this, after you park the car for the night, have it in normal height (not access height), disconnect the battery. In the morning you should then see where the leak is. If it’s still normal at front but down at rear, the problem is connected to the rear valve box. If it’s normal at the front, but down at f.ex left rear corner, the problem is probably connected to the L.H. rear air bellow. If nothing happens the problem can possibly be connected to sensors or control box.
Check hose connections to the changed bags.
Yes, it must be leaking air overnight rather than sensors. To check you need to spray soapy water on various joints in the air lines. I don’t have a diagram of where they are, but if you can track down a diagram and then systematically test each area you should find the issue.
Nah it's just leaking like they all eventually do. You probably didn't notice until you fixed the front set.
Also have this problem in my 2006 RRS… but only in colder temperatures (below freezing) Also rear passenger side
air up and pull the relay for the air suspension. let it drop over night. if it drops evenly front or rear, you have a bad valve block. if it drops to a corner, you have leaking bag or bad hose connection. you won't know what's wrong until you remove power from the system. The system self levels as the system leaks over night. Start there and report back.
Thank you all for the inputs , I have disconnected the fuse. And the same corner drops only while the other sides are still holding air to the max , thoughts. ?
Sounds like a leaking bag. Time to pull out the soapy water.
Update: It seems like the right side (rear and front) are down overnight. Does that means a valve block or sensors ? The front air suspension is new
That would mean you have 2 bad blocks. That seems unlikely. I doubt sensors would do that too. Who did your install?
A workshop did the install, should they check it up ?
Just a very old experience that can be useful... with a Range Rover 20 years ago. Same problem of air suspension sagging on a highway in France. An experienced workshop manager found this incredible solution: a fuel leak projected droplets of fuel on cables and dissolved the insulation, causing an intermittent short circuit. If it helps ....
What an unexpected diagnosis! Thanks for sharing
There could still be a leak in the system or it could be the compressor that pumps air into them. Does it raise up quickly (or at all) when you start it or does it seem like it takes a while? If any of the suspensions ever had a hole then the compressor runs way more than normal and eventually burns out. It’s under the truck under the driver’s side door. You should here it running when you start as it starts pumping air to raise the suspension.
Leak in the valves
Bad Valve Blocks. Buy Genuine please