citroen xantia 1.8i 1997 'R' 2 faults

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. - 20 Apr 2006 22:00 GMT

on behalf of someone else.

fault one: when the xantia is switched off it sinks at the back

fault two: sometimes, after a run, it dies at the traffic lights.

the car was given free of charge and is visually in A1 condition.

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Adrian - 20 Apr 2006 22:10 GMT

. (-@-.com) gurgled happily, sounding much like they were saying :

> fault one: when the xantia is switched off it sinks at the back

Anti sink sphere flat?
Brake valve leaking back to the reservoir internally.

> fault two: sometimes, after a run, it dies at the traffic lights.

Check for air leaks between head/inlet manifold/ducting/air flow meter.

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. - 20 Apr 2006 22:28 GMT

> . (-@-.com) gurgled happily, sounding much like they were saying :
>
>> fault one: when the xantia is switched off it sinks at the back
>
> Anti sink sphere flat?

I'd guessed that.

> Brake valve leaking back to the reservoir internally.

didn't guess that. will pass it on as the xant is used to carry 2 kids

>> fault two: sometimes, after a run, it dies at the traffic lights.
>
> Check for air leaks between head/inlet manifold/ducting/air flow
> meter.

a pipe off or something deeper ?

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Slim - 20 Apr 2006 23:16 GMT

Fault 1, will be an internal leak back to the reservoir, the most
common suspect is the brake valve, but it coule be a suspension
cylinder.

Dont be fooled into thinking that a brake valve return fault will make
the car unsafe, because it dont!! Sounds daft but true. The rear brakes
take the pressure off the rear suspension, therefore the more weight in
the boot, the more pressure is in the rear brake curcuit, if the brake
valve has a return fault it will not effect the braking at all, it
simply makes the back end sink when parked up. Your brakes will still
work fine. if you want to change it, and you will eventually as you
will get fed up with the sinking, check out the on line shopping at
www.citroen-hydraulics.com

The anti sink sphere may or may not need changing (and all the others
if they havent already been changed) but changing the anti sink sphere
alone will not be a cure if the car has a leak back.

Fault 2, I would guess at the idle speed stepper motor, Take the thing
out and give it a good spray with carb cleaner and while you are at it,
clean the throttle body inside with the carb cleaner, this needs doing
on the Xantia from time to time and it will make a hell of a
difference.

Regards
Slim.

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. - 20 Apr 2006 23:40 GMT

> Fault 1, will be an internal leak back to the reservoir, the most
> common suspect is the brake valve, but it coule be a suspension
[quoted text clipped - 22 lines]
> Regards
> Slim.

cut, pasted and printed out for the benefit of the lady in question.

thanks slim.

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Adrian - 21 Apr 2006 07:21 GMT

. (-@-.com) gurgled happily, sounding much like they were saying :

>>> fault one: when the xantia is switched off it sinks at the back

>> Brake valve leaking back to the reservoir internally.

> didn't guess that. will pass it on as the xant is used to carry 2 kids

It's not a safety issue.

>>> fault two: sometimes, after a run, it dies at the traffic lights.

>> Check for air leaks between head/inlet manifold/ducting/air flow
>> meter.

> a pipe off or something deeper ?

Just an air leak, allowing unmetered air in, meaning the mixture is far
leaner than the car thinks.

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