Thread: L322 EAS having trouble lifting heavy weights.

I have no idea but it kinda sounds like the compressor can't create the pressure required.
In sure someone will have more of an idea but it sounds like the compressor to me?
Does the car maintain height when parked up overnight or a few days?
Or could there be a slow leak somewhere?

Hi Blade,

I "think" the compressor is OK. I have two of them.

One has been working seemingly OK for quite a while. The other i rebuilt about 6 months ago with one of bag piping andy's rebuild kits.

If i leave the car sitting for a few days and then get in a start it, the front of the car does come up about an inch. I didnt think i leak this slow would be enough to stop it from lifting the rear. And even then, i would have thought i leak in the front would effect the lifting of the rear?.

Dave

My initial thought was the compressor too. The other symptoms make me think it could be something else though. The fact that the flashing light goes off to say it has reached the required height, but it hasn't gone up at the back is a bit strange. The only time that happened to me was when I has a stuffed height sensor, but that threw a fault.

With your Allcomm, can you see the individual heights of each wheel? If so, check to see if they are all saying the right thing, could be a sensor, but I'm leaning towards the compressor - when was the last time you replaced it? If it's original, then it will be very long in the tooth. I'm on my second one, and that is starting to get a bit slow.

hi bacicat,

Not sure if the answers in my above response will help?. I think i responded about the same time as you!.

Dave

There's obviously 3 different pressures required for the three different heights.
Something may be limiting the pressure required to reach max height or the pressure required for leveling the car with weight on the ball.
Maybe the compressor can't create the pressure required.
Although you would expect that there is a cut out once the compressor has reached it and if it didn't it would just try and keep pumping and never get there.
So maybe it's the pressure cutout sensor which I assume is built into the compressor.
Maybe it's cutting out too soon at too low a pressure?
Sorry just throwing out ideas

Sorry for the hijack But I've just had something similar happen to mine today...

Got it back on the road today after months sitting in a mates workshop (my fault entirely for not making the time to sort the issues) but after fully rebuilding the arse end as it clunked and squeaked and clicked (cv's - easy fix if they just start to click - swap them side to side, they are identical part numbers on the back ) but when I recommissioned the EAS (the whole system was deflated using my IID tool) I now find that I cannot get it to off-road height. It starts to go up, but doesn't get there....

I know my compressor is a bit weak, what pressure should be in the system? I watch it go up to 138psi which I think is a bit low.

Any thoughts?

thanks guys for all the replies.

I can see the heights of the wheels, however im not quite sure how to read it.

Does anyone know if the allcomms can show the pressure in the EAS system?. I cant seem to find it anywhere?.

bacicat - how are you seeing the pressure in your system?

Dave

I have a GAP Diagnostics IID tool. In the menu you can go to 'live values' and look at any ecu for its data. Was also looking at Cabin, AC and external temps in the hvac system.

Height values range from negative a bit to positive a bit - it varies from wheel to wheel. I think I saw -35 when it was at access height and +65 when trying to get to off road height, but what relationship this is to anything, I'm not sure. I probably need to calibrate mine, but I haven't read up on that yet, so don't want to go stuffing with it until I know what I'm doing.