Xantia system pressure

[robin92]

Hi!
First of all my english is not good!

I have a Xantia Activ -96

My problem are that the car not rising and the stop lamp lights.
No click from pressure regulator and it seems to admits the return to tank. Or is there something else that gives return, but should not return were split up in this case?
Same hose split up to 4-5 returns and hard to see some one now were they go?
I wounder what happend if Safety valve are broken or have stuck?

Need serious help car stood still one week

[wotwot]

Hi robin Does it have enough lhm fluid in the container under the bonnet to start with.

[robin92]

Yes!
No leak on high presure side or return side.
But it is a pyyyysch sound you hear when the car is off. That is the regulator to activa leg that sounds or something in near :S And when I squeeze that who control the activa leg it pyyysch even more.
And after a while I must start the car for reload the pressure.

[wotwot]

Come on guys I'm not all that with the activa and all its quirks.I dont know about the valves can they become blocked or stuck.

[robin92]

or air in the system?
I saw a draw about activa system and saw a air screw i the rear end

[Xaccers]

You haven't taken the bleed screw out the regulator at the front of the engine (which the accumulator sphere screws into) and lost the ball bearing behind it have you?
It's a 12mm bolt.

[robin92]

no, the ball bearing is in right place.
I think that the pressure regulator is broken.
But strangely they usually never go down?

[Deanxm]

If a spring has broken it could easily stop the pressure regulator from working and should be checked but this does sound like an internal leak to me, the two activa rams are good candidates for leakage but number one is the hydractive valves or firmness regulators, if there is hissing there is fluid going somewhere it shouldnt be, might be able to use a stethascope to hear where the fluid is leaking but check the returns from the hydractive valves first.

Very good English by the way.

D

[robin92]

I have checked every retur, only a big return from pressure regulator

[Deanxm]

Ok in that case this may help you

CIMG3065 by Deanxm, on Flickr.

A good few of us have stripped the regulator and rebuilt them now as they suffer very badly from low pressure output which makes a massive difference to the operation of the car.

D

[robin92]

were is low pressure output? :O
And what you make for rebuild regulator?
Btw my first Citroen car :p

[CitroJim]

i don't know how but I've missed this thread until now...

Robin, I'm worried you say you can hear a 'whoosh' noise.. This sounds to me very much as suspected by Dean, a leaky Activa Ram. I have known a leaky ram cause this exact same problem.

The rams can be tested by blocking both inlet and outlet ports and trying to 'pump' the ram. It should go solid. If you can pump the ram up and down despite the ports being blocked-off then the ram is leaking internally. Such a ram will consume so much volume of LHM that there will never be enough pressure to lift the car.

[robin92]

Hi!
I removed a return that goes to both high regulators and there is much LHM that goes back to the reservoir.
When I moved the activa controles (engine off) it sprayed LHM from a return that are in plate.
should it be so or it has something with the regulator?

Here I maded a red circel around that side it comes lhm from but it is from activa regulator, those are the same

EDIT!
Can you explain the word ram?

[Xaccers]

Ram is piston, as you're in Sweden and drive on the wrong side of the road ( ) you'll have one ram on the front driver's suspension strut, one on rear passenger side strut.

[robin92]

okey!
I dont have anything to plug the in/out let :S
Should I remove the activa ram and pump it up and down manually?

Btw!
A hose to activa ram got broken 2 weeks before this error. it worked when I fixed the hose.
And no return from small hose that are on the activa ram

Explain more about the activa ram and how to look if it are ok with the ram.