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Automatic Gearbox Fault


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#1 Centaur

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Posted 28 September 2009 - 09:20 AM

Dec 2006 (56 plate) Pic Exclusive 22500 miles.

Fault has happened a couple of times but only on a steepish hill descent under no throttle and within about 5 minutes of being started.

The 'clunk' seems to lock it into 2nd gear and it isn't possible to switch to tiptronic mode, the display showing D only.

Stopping and putting the box into neutral with the engine running allows the auto mode to agin switch freely but still no manual selection available. By switching off completely, normal functions seem to be restored again with both auto and manual selection modes available and the car runs as normal.

The only other thing noticeable from when I got it with about 15k miles, is a whine from the transmission when slowing from around 75mph (not braking) to about 50mph ish, when it becomes less noticeable.

Any helpful suggestion welcomed as am supposed to be taking her to France on 5th Oct !
'56 Picasso Exclusive 2.0Ltr Automatic in red

#2 jimux

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Posted 28 September 2009 - 11:53 AM

The 'steep hill' gives a clue. It is possible that the gearbox fluid level is low. That could also account for the whine as the faster the gears turn the more fluid is thrown about and the lower the surface level is. If it is low then I would suggest changing/flushing and refill with new.

Check for any signs of oil weep under the car or oil mist on surfaces. It need not be a major leak to lower the level over a long period of time.

#3 Centaur

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Posted 30 September 2009 - 03:08 PM

Just had the car bunged on the diagnostic kit and the gearbox cooler checked. Diagnosis is a faulty valve block, fluid found to be both ok and of correct level, no swarf from 'box evident.

As the car is under 3 years (just ! ) it is being done under warranty, they say......will advise if this is not the case.

Though the fault is 'significant' it is apparently not 'common' and the usual fault is the hydraulic valve block solenoids I think.
'56 Picasso Exclusive 2.0Ltr Automatic in red

#4 Centaur

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Posted 18 October 2009 - 09:27 AM

Further news on the topic.

Valve block allegedly replaced under warranty as stated, drove car home (15 miles) parked it and left it whilst off on French hols.

8 days after being stood, I attempted to use it for some errand, only to find all the symptoms of a duff torque convertor....the ones where the engine note rises but the car hardly moves either fore or aft.

Eventually had it recovered to Citroen dealers in Torquay (the lot who 'replaced' the valve block, where they acknowledge 'there's some kind of fault' !

They claimed then to have drained and refilled the 'box with fluid and stated that 'it works ok, but the technician feels there's still an underlying fault'. Hence it's still at the dealers pending another 'looksee' after the weekend.

I have a vague recollection of reading some years ago that if a torque converter develops a leak that this sort of thing happens, anyone know if this is so ?
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#5 Centaur

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Posted 21 November 2009 - 11:46 PM

Further to the above. A couple of weeks after the 'repair' the car had again stood idle for 4 days and there was yet another recurrence of the lack of proper drive......engine revved fine, but there seemed to be little or no connection with the transmission.

Car to dealers yet again, this time they had it for 9 days to check why this happened after being idle.
Yet another replacement of the valve block, plus some seals which fit underneath, along with the wiring from the VB back into the main harness.

Have currently left it standing again for 5 days and shall be testing it again tomorrow, when once again I expect to find exactly the same fault as before, mainly that they completely ignored my opinion that there is either a faulty Torque convertor, or it's leaking into the oil pan....hence no drive.

Shall be back tomorrow to relay the results.

The warranty runs out in about another 3 weeks so I HAVE to get it sorted properly this time !

P.S.
Bit disappointed with the lack of response from any of the real 'tecchies' here........it used to be much more helpful in earlier years.

Edited by Centaur, 21 November 2009 - 11:49 PM.

'56 Picasso Exclusive 2.0Ltr Automatic in red

#6 Centaur

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Posted 20 December 2009 - 12:52 PM

Latest, and last I hope, episode on this topic.

Looks like my diagnosis was wrong after all. It appears that having replaced the distribution valve block for the second time, the adjacent oil seals may have been damaged. These were replaced as a final item, and since then, the 'box appears to be working ok again.

Whilst I'm happy that the fault was dealt with before the warranty expired, I'm less than impressed with the number of times it had to go back and forth, with the attendant disruption to everyday life in my rather isolated location.

As a matter of interest, I looked at the C4 Grand Picasso as a replacement, but found it overcomplicated with far too many controls on and around the steering wheel. Besides which, it sports the same semi autobox as my current car, and I don't fancy a repeat of the hassle in another year or so.

Shame really as I really feel that Citroen are producing some really nice cars today, both in style, and dare I say, improved reliability too ?
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#7 RichB

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Posted 31 March 2010 - 09:50 AM

Latest, and last I hope, episode on this topic.

Looks like my diagnosis was wrong after all. It appears that having replaced the distribution valve block for the second time, the adjacent oil seals may have been damaged. These were replaced as a final item, and since then, the 'box appears to be working ok again.

Whilst I'm happy that the fault was dealt with before the warranty expired, I'm less than impressed with the number of times it had to go back and forth, with the attendant disruption to everyday life in my rather isolated location.

As a matter of interest, I looked at the C4 Grand Picasso as a replacement, but found it overcomplicated with far too many controls on and around the steering wheel. Besides which, it sports the same semi autobox as my current car, and I don't fancy a repeat of the hassle in another year or so.

Shame really as I really feel that Citroen are producing some really nice cars today, both in style, and dare I say, improved reliability too ?

The above has not given me much comfort. I have been getting infrequent warnings " Automatic gearbox failure" getting stuck in second. However, stopping and starting up again resolved the problem. I mentioned this when I took the car in for a service and asked them to check. Nothing to report they said. However, the other day there was a clunk from the gearbox and the warning appeared. Stopping and starting again resolved the matter, but I have now got the car booked in for a proper check.
Off course it's sods law that the warrenty has now expired and wondering what sort of bill I am likely to get!!

#8 Michael Crane

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Posted 22 April 2010 - 10:09 AM

.... Stopping and starting again resolved the matter, but I have now got the car booked in for a proper check.....

Have you had the service yet, and did they discover the 'fault'? I have had this happen to me recently and I am trying to figure out what to do.

#9 caguila

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Posted 10 May 2010 - 03:28 PM

The above has not given me much comfort. I have been getting infrequent warnings " Automatic gearbox failure" getting stuck in second. However, stopping and starting up again resolved the problem. I mentioned this when I took the car in for a service and asked them to check. Nothing to report they said. However, the other day there was a clunk from the gearbox and the warning appeared. Stopping and starting again resolved the matter, but I have now got the car booked in for a proper check.
Off course it's sods law that the warrenty has now expired and wondering what sort of bill I am likely to get!!


Idem Michael Crane... Did they discover the 'fault'? I have had this happen to me recently...

thanks in advance...

#10 RichB

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Posted 29 June 2010 - 02:10 PM

<!--quoteo(post=173902:date=Mar 31 2010, 05:50 AM:name=RichB)--><div class='quotetop'>QUOTE (RichB @ Mar 31 2010, 05:50 AM) <a href="index.php?act=findpost&pid=173902"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->The above has not given me much comfort. I have been getting infrequent warnings " Automatic gearbox failure" getting stuck in second. However, stopping and starting up again resolved the problem. I mentioned this when I took the car in for a service and asked them to check. Nothing to report they said. However, the other day there was a clunk from the gearbox and the warning appeared. Stopping and starting again resolved the matter, but I have now got the car booked in for a proper check.
Off course it's sods law that the warrenty has now expired and wondering what sort of bill I am likely to get!!<!--QuoteEnd--></div><!--QuoteEEnd-->

Idem Michael Crane... Did they discover the 'fault'? I have had this happen to me recently...

thanks in advance...



#11 Robguy

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Posted 03 February 2011 - 10:20 PM

<!--quoteo(post=173902:date=Mar 31 2010, 05:50 AM:name=RichB)--><div class='quotetop'>QUOTE (RichB @ Mar 31 2010, 05:50 AM) <a href="index.php?act=findpost&pid=173902"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->The above has not given me much comfort. I have been getting infrequent warnings " Automatic gearbox failure" getting stuck in second. However, stopping and starting up again resolved the problem. I mentioned this when I took the car in for a service and asked them to check. Nothing to report they said. However, the other day there was a clunk from the gearbox and the warning appeared. Stopping and starting again resolved the matter, but I have now got the car booked in for a proper check.
Off course it's sods law that the warrenty has now expired and wondering what sort of bill I am likely to get!!<!--QuoteEnd--></div><!--QuoteEEnd-->

Idem Michael Crane... Did they discover the 'fault'? I have had this happen to me recently...

thanks in advance...



#12 tomron

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Posted 10 February 2011 - 06:37 PM

Hi all ,

I too have had the same problem with a 53 Picasso 2lt auto . Am going to take the gearbox off the car as the report from a dealer says that either a fault with the bands breaking up or the valve block inside has a problem . I have tried flushing out the box but not enough improvement to last any length of time . It may take a while , as I am not as young as I was , but if I have any answers , I will post back here .

#13 Michael Crane

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Posted 10 February 2011 - 07:00 PM

Sorry about not getting back.

OK, I don't know what happened and I am probably tempting fate, but here goes . . . .

Last August the car went in for a 30,000 service and I asked the garage to check why this was a recurring problem. The last instance was just 10 days prior to the service. The garage carried out the service but did nothing to investigate the problem claiming I needed to see a specialist - and they recommended one on Mansfield (UK).

But, I never got around to contacting him and the funny thing is, the car has behaved perfectly ever since! The garage swear they didn't do anything (and my bill confirms this) and it seems to have cleared on its own! :rolleyes:

I will, if this email is jinxed, get back to you all and tell you if it reoccurs. :angry:

Fingers crossed. :P


Michael

#14 tomron

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Posted 25 February 2011 - 05:42 PM

Hi again ,

With the help of a rather good mechanic , we took the gearbox out of the car . Not too bad a job if you are used to working on engines .
Approached Citroen Dealer about a replacement box , very unhelpfull and quoted a price of " over £2000.00 " + VAT . They wanted to do the work as well .
Approached an automatic gearbox service co. and was quoted less than £900.00 for a rebuilt box , with a 12 months or 18.000km guarantee . No brainer there then , we fitted the refurbed box back into the car . New oil cooler too , all set up and now running again . The new box is getting better with the changes as it seemed not to know when to change down at traffic lights etc. but is learning fast . The co. told us about this so we were ready .
If I were to give any advice on doing this kind of job to any of the general drivers on this forum , then I would suggest that you ask a garage to give you a quote for the work . I have been told that the gearbox co. allow 9 hours for the work . It took us nearer 20.
So , you can have a refurbished automatic gearbox replaced and running for less than the suggested price of just a gearbox itself from Citroen .

Happy Motoring , Tomron .

#15 beechy

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Posted 26 February 2011 - 01:52 PM

Hi,

If it's any help to anyone, i got this fault when i removed the number 5 fuse from the fuse box under the bonnet. The manual said that specific fuse wasn't used but obviously it was!

#16 biggs682

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Posted 13 April 2013 - 06:29 PM

we have started to get same fault as listed above , car done aprox 55k . its a 55 plate so wont be worth a lot .