EAS. I love it but I hate it too!

kooky_guy · Oct 7, 2009

Well I'm confused again now. It doesn't take much, but this doesn't seem to make much sense.

I replaced my rear airbags with Arnott Gen 2s. Haven't done the fronts yet as the mudflap fixings are rusted and I don't want to try ripping them off 'til I've got replacements (suggestions as to where I can get them anyone?). Anyway, the fronts aren't too bad and don't seem to leak.

So I replaced the rears as they looked very perished and kept going down overnight.

Replacing them has made little difference, except that one side goes down much faster than the other. Sometimes in minutes (but only when I'm not watching it).

I did find a couple of minor air leaks in the connectors under the bonnet at the EAS box but have replaced them. No effect. Had a look along the top of the chassis rail and as far as I can see there are no other connectors along the length of the air pipe. I suppose it's possible the pipe has a split somewhere, but impossible to get at to leak test it.

I'm also still occasionally getting the Pressure switch is not changing state error and the compressor seems to run a lot more often than it should.

It rises quickly on demand so there must be enough pressure in the system.

Could this be a valve block diaphram and/or solenoid o ring problem?

Grrr. I can see why people get fed up with it!

Guy

nathan5346 · Oct 7, 2009

does it drop to the bump stops?

kooky_guy · Oct 7, 2009

nathan5346 said:
does it drop to the bump stops?

It does at the back overnight but only if I leave it at access height.

I've tried leaving the tailgate open with it at full height and it still drops on that corner quite a bit - 4.5 inches overnight. It dropped the other corner about an inch.

The fronts actually went up, but I assume that was because the rear had dropped.

Soapy water test not showing any problems!

gavbriggs · Oct 7, 2009

you dont have to take the arch liner off to replace air bags on front, just bend it back by the air bag and jam a block of wood in there, ask gemsdad, i did his in 10 minutes!!!!

gemsdad · Oct 7, 2009

gavbriggs said:
you dont have to take the arch liner off to replace air bags on front, just bend it back by the air bag and jam a block of wood in there, ask gemsdad, i did his in 10 minutes!!!!

oi,ten minutes.tellin porkies gav.

gavbriggs · Oct 7, 2009

ok 15 but not a second more, trouble is the lad didnt have the tools ready to hand!!!

kooky_guy · Oct 7, 2009

gavbriggs said:
you dont have to take the arch liner off to replace air bags on front, just bend it back by the air bag and jam a block of wood in there, ask gemsdad, i did his in 10 minutes!!!!

Ah, I might try that once I've sorted this leak thing out.

I did wonder about just replacing the air lines to the rear completely with new pipe, but it'd be good to be sure this was the problem first.

gavbriggs · Oct 7, 2009

its prolly the air lines or connections, try using soapy water on the bits you can get to!

gemsdad · Oct 7, 2009

gavbriggs said:
ok 15 but not a second more, trouble is the lad didnt have the tools ready to hand!!!

a decent workman never blames his working tools.20 mins anorl.

kooky_guy · Oct 7, 2009

gavbriggs said:
its prolly the air lines or connections, try using soapy water on the bits you can get to!

I have and can't find any more leaks! (In the bits I can get to anyway).

gavbriggs · Oct 7, 2009

you could get a legnth of pipe, put in temeorary to test and then just replace the knackered one when you find it!

kooky_guy · Oct 7, 2009

gavbriggs said:
you could get a legnth of pipe, put in temeorary to test and then just replace the knackered one when you find it!

Yes, I was kind of thinking along the same lines but was trying to avoid it as it's going to be a pain in the bum and it's my only vehicle now thanks to the wife.

So we're thinking it's most likely to be an air leak in the pipes to the airbags and not related to the intermittent pressure switch warnings and pump running too often then, are we?

Spose I'd better get some pipe ordered then. I spose that will at least exclude something from the mix.

Away for the next few weekends though so I'll let you know once I've had a chance to try it.

nathan5346 · Oct 7, 2009

kooky_guy said:
It does at the back overnight but only if I leave it at access height.

I've tried leaving the tailgate open with it at full height and it still drops on that corner quite a bit - 4.5 inches overnight. It dropped the other corner about an inch.

The fronts actually went up, but I assume that was because the rear had dropped.

Soapy water test not showing any problems!

You sure it aint just self levelling? oops i missed the bit about the tailgate...ignore me :doh:

kooky_guy · Oct 7, 2009

nathan5346 said:
You sure it aint just self levelling?

Well there's definitely a problem because the rear drops (and especially the one corner) if I leave the tailgate open which should cancel the self levelling. It does take a long time to drop though with the tailgate open.

The self levelling seems to make that corner drop fairly randomly but the Rangey usually ends up anything but level unless I drop it to access height first.

The fact that the pump seems to run an awful lot and the pressure switch not changing state error appears periodically suggests to me that there are other issues but I suppose they could be completely unrelated.

When the engine's running, the car goes up to height immediately and seems to be fine, I'm getting bored with troubleshooting it now! I've got too many other things that need fixing!

gemsdad · Oct 7, 2009

nathan5346 said:
You sure it aint just self levelling? oops i missed the bit about the tailgate...ignore me :doh:

ok we will.

gemsdad · Oct 7, 2009

kooky_guy said:
Well there's definitely a problem because the rear drops (and especially the one corner) if I leave the tailgate open which should cancel the self levelling. It does take a long time to drop though with the tailgate open.

The self levelling seems to make that corner drop fairly randomly but the Rangey usually ends up anything but level unless I drop it to access height first.

The fact that the pump seems to run an awful lot and the pressure switch not changing state error appears periodically suggests to me that there are other issues but I suppose they could be completely unrelated.

When the engine's running, the car goes up to height immediately and seems to be fine, I'm getting bored with troubleshooting it now! I've got too many other things that need fixing!

is there nobody with a rovacom near you that could look at the stored faults so you know what is causing the probs.

Datatek · Oct 7, 2009

gemsdad said:
is there nobody with a rovacom near you that could look at the stored faults so you know what is causing the probs.

RSW Solutions software will show the EAS faults. Sounds like solenoid block/driver problems to me if you cannot find any leaks. A leaky solenoid valve would account for one corner dropping and the pump running too often

kooky_guy · Oct 8, 2009

Datatek said:
RSW Solutions software will show the EAS faults. Sounds like solenoid block/driver problems to me if you cannot find any leaks. A leaky solenoid valve would account for one corner dropping and the pump running too often

Yes, I've got the software - the only fault that keeps coming up is the Pressure Switch not changing state problem, which I understand can be caused by all kinds of things but not usually a dodgy switch!

At one point I was getting EAS faults every couple of days, but it's more like once a month now.

I'm not sure if it's just my imagination, but the corner that keeps dropping feels softer than the other side too. Mebbe I should bite the bullet and overhaul the valve block too, but it's finding the time!

Just wish I had a decent specialist nearby that I could just send it in to but I wouldn't trust my local one to change an indicator bulb without ripping me off.

Still, it's all good fun and at least I can still use it.

Guy

Datatek · Oct 8, 2009

I'm not sure if it's just my imagination, but the corner that keeps dropping feels softer than the other side too. Mebbe I should bite the bullet and overhaul the valve block too, but it's finding the time!

Guy[/quote]

Soft on one corner could also indicate blow by on the associated solenoid valve.

Get yourself a set of emergency inflation vaves off Ebay, pump it up to height with a portable compressor and see if it stays there. That will prove the pipework and air bags leaving only the valve block and driver.

kooky_guy · Oct 8, 2009

Datatek said:
Soft on one corner could also indicate blow by on the associated solenoid valve.

Get yourself a set of emergency inflation vaves off Ebay, pump it up to height with a portable compressor and see if it stays there. That will prove the pipework and air bags leaving only the valve block and driver.

I've got a set of emergency inflation valves fitted already - they were the source of most of the leaks! Stupid things.

The way mine are plumbed in mean the they share the pressure in each airbag pipe with the solenoids so I'm not sure how that would prove anything.

Each of the 4 output pipes from the EAS box has a t-piece on it which goes to the airbag in one direction and the valve in the other. I'm assuming inside the EAS box it's going to the solenoid...

Gotta pic somewhere but I can't get it off my phone at the mo...

EAS. I love it but I hate it too!

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