Posted by David S on December 27, 2001 at 07:35:16:

In Reply to: Range Rover Suspension Fault posted by Steven on December 26, 2001 at 14:19:03:

The EAS valve block and compressor are in the black box on the LH front inner wing. It is almost as large as the air filter housing, and is labelled EAS. The top comes off easily enough. The ECU is under the front passenger seat, IIRC.
Move the seat right back and look. For information, but not because I think it will help, there is a black box under the seat, near the LH runner. About 1" square but 2" high. That is the isolator unit, and unplugging it stops height changes taking place under control of the ECU.

As Mr G suggests, it sounds like a slow and intermittant leak. If you put ordinary screenwash, at a 50/50 mix, in a spray bottle, it makes a passable leak detecting fluid. ie it bubbles nicely, although I haven't needed to use it for this application.
The push in pipe joints are the most likely sites.
All are external to the EAS box.
From memory, 7 on the side of the box. It won't be the two on the drier (cylindrical, next to the air filter) because that is not under pressure when the system is at rest (ie engine off and system working normally). Each air bag has one pipe going into the top. The front ones are easy to see, the rears aren't. The only other componant is the resevoir tank. Under the car, RH side, next to the chassis member, about where the B pillar is (the one between the side doors).

Actually, thinking a bit harder, the airbags are isolated from the resevoir while the car is at rest, overnight. What is happenning is that one bag, or connection, is leaking. The automatic level setting system compensates for the resultant lean by deflating the other bags. So, to pin it down to one corner, set the suspension on its highest setting, to put the maximum pressure in the bags, and to make any lean more obvious. Switch off the engine, then unplug the isolator mentioned earlier.
The manual says NOT to drive the car with the isolator removed.
Check the situation at suitable intervals. When you can see the lean, that's the corner to check. It might be a porous air bag, not just a pipe leak.

Just push the pipes in firmly to obviate a poorly seated one. Remember the bag pipe will have two ends, so check the EAS box end as well as the bag end.
Removing pipes is more complex, do not just pull, especially on a pressurised system.

The handbook will tell you where the fuses are. There will be more than one, but I agree with Mr G, it sounds as though that side of the system is OK.

Let us know how you get on.
If it comes to it, are you going to change a faulty bag?
You don't write as though you do much car maintenance :-)

• Re: Re: Range Rover Suspension Fault Steven Thu Dec 27 15:15:31 2001 (1)
  • Re: Re: Re: Range Rover Suspension Fault David S Fri Dec 28 04:48:59 2001 (0)