Hi, I've just bought a 5 years old Xantia 2.0iSX 16v, 95.000km, with some "stiff back" problem.
As I start the car...sometimes it is normally soft but more often it is without suspension on rear wheels. And then after a few kilometers and some bouncing, it noticebly "frees itself" and ride is fine until I stop the engine.
And when I want to have a normal car from the start, I go for maximum height or do the opposite and finally I hear something as if a handbrake would be released, a sudden bump, and Xantia is soft.
I think the spheres are in order(once the car is soft it stays soft) and yesterday depressurizing didn't help.
Which valve should I suspect?
Thanks for any hint!
Xantia from Slovenia,
Moderator: RichardW
Sounds like the height corrector linkage is sticking. You'll have to get under the car and clean and lubricate it. Remember to support the car properly before you get under it as you may cause the suspension to drop and hence seriously injure yourself.
While fiddling around with the linkage you should find the plastic operating arm and examine it carefully and replace it if necessary. It can break or fall off.
jeremy
While fiddling around with the linkage you should find the plastic operating arm and examine it carefully and replace it if necessary. It can break or fall off.
jeremy
jeremy thanks, I have already been lying under the car and cleaning the mentioned parts(prior to this had done some wax spraying):-(
And I have learned about the safety measures on this very forum!
As I was depressurizing I noticed some tiny adjustable screw on the electrical connection part of the PR(Hydraulic system pressure regulator) with + and - marks on it. So, something to adjust! Maybe here you set the limit at which my anti-sink sphere frees the car once the engine has started running?
Something must loosen this anti-sink feature and I wonder what this could be.
Kind regards,
bojan
And I have learned about the safety measures on this very forum!
As I was depressurizing I noticed some tiny adjustable screw on the electrical connection part of the PR(Hydraulic system pressure regulator) with + and - marks on it. So, something to adjust! Maybe here you set the limit at which my anti-sink sphere frees the car once the engine has started running?
Something must loosen this anti-sink feature and I wonder what this could be.
Kind regards,
bojan
For the full theory have a look at 'Gabor's textbook@ in the links forum of this site.
I wasn't aware that there were any electrical parts to the pressure regulator but then I'm only familiar with BX. On a BX the only electrical connections are on the safety valve which is buried under the subframe but is in fact the first component after the regulator.
jeremy
I wasn't aware that there were any electrical parts to the pressure regulator but then I'm only familiar with BX. On a BX the only electrical connections are on the safety valve which is buried under the subframe but is in fact the first component after the regulator.
jeremy
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Dave Burns
- Posts: 1915
- Joined: 14 May 2001, 05:30
- Location: United Kingdom
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Hmm...I'd like to know more about this electrical connection thingy, might your car have hyrdactive suspension, in the UK the SX spec vehicle would not, may not be so where you are.
If no hydractive, you need to explain where abouts on the car you have been playing with this +/- screw, reason being there are no electrics on the hydraulic pressure regulator.
Dave
If no hydractive, you need to explain where abouts on the car you have been playing with this +/- screw, reason being there are no electrics on the hydraulic pressure regulator.
Dave
Oh, stupid me....SORRY guys, my description of where is what was not correct.
/I learned from this forum that SX means the car is not an hydractiva. But I have a button to set the car to soft or hard mode..?/
Looking from above the engine this electrical connector is very close, but under the PR and is connected to another sphere. So, THIS electrical connector has + and - signs on it as it can be turned left-right for about 160 degrees /there is a hole in it and I thought there is an adjustable screw inside/.
So, turning this connector adjusts something. What?
Reading Gabor's textbook I decided the problem should be handled by Citroen specialist and I have already arranged an appointment. I hope he IS a specialist.
Sorry for puzzling you all,
thanks and regards, bojan.
/I learned from this forum that SX means the car is not an hydractiva. But I have a button to set the car to soft or hard mode..?/
Looking from above the engine this electrical connector is very close, but under the PR and is connected to another sphere. So, THIS electrical connector has + and - signs on it as it can be turned left-right for about 160 degrees /there is a hole in it and I thought there is an adjustable screw inside/.
So, turning this connector adjusts something. What?
Reading Gabor's textbook I decided the problem should be handled by Citroen specialist and I have already arranged an appointment. I hope he IS a specialist.
Sorry for puzzling you all,
thanks and regards, bojan.
Hi,
here it is how it turned out. My Xantia IS hydractiva, despite SX suffix. It has two anti sink spheres and I know now that every second computer sends signals to these spheres as it monitors the pressure. There is an identical valve fitted to each of these two spheres and the computer thinks of these two valves as of one.
And as the "rear" of the car was stiff, it was the valve fitted to the rear anti sink sphere which was not working as it should have.
I did manage to find a used valve and it took my "Citroen specialist" 10 minutes to change it; after disassembling spare wheel compartment the job was easily done.
As for the "specialist": he was changing my rear spheres:-(..,till my friend deductively had an idea what could have been the reason of my stiff back Xantia and till I have come up with the new valve.
I am happily driving softly now
Long live the Forum!
Regards, Bojan
here it is how it turned out. My Xantia IS hydractiva, despite SX suffix. It has two anti sink spheres and I know now that every second computer sends signals to these spheres as it monitors the pressure. There is an identical valve fitted to each of these two spheres and the computer thinks of these two valves as of one.
And as the "rear" of the car was stiff, it was the valve fitted to the rear anti sink sphere which was not working as it should have.
I did manage to find a used valve and it took my "Citroen specialist" 10 minutes to change it; after disassembling spare wheel compartment the job was easily done.
As for the "specialist": he was changing my rear spheres:-(..,till my friend deductively had an idea what could have been the reason of my stiff back Xantia and till I have come up with the new valve.
I am happily driving softly now
Long live the Forum!
Regards, Bojan