THP power loss

[gar074]

No - every time they have it in, it won't misbehave.

Bloody frustrating. Lost power again on the A11 tonight going home after the football, but I know that if I book it in again next week, it'll run like bloody clockwork.

[ffcphone]

You're getting the full MIL, loss of power etc though aren't you, like back at square one pre-timing chain, temp sensor and fuel pump change?

So far I've just had the half second "stutter" when slamming it at 85 on motorway. No MIL, nothing else.

[Owd git]

Well, my THP has been at the dealership for three days now to have an intermittent power loss investigated - it's taken over two months for them to get their hands on a camshaft setting tool from CUK so they could investigate.

It's been running perfectly for the last two months but I'm expecting to be told that it needs a new chain and so on. When I find out exactly what's been done I'll post it here to add to the knowledge pool

In the meantime I'm driving around in DStyle VTi which, nice car that it is, just doesn't hack it for me after the THP

[monkeynuts]

Two months for a cam setting tool FFS and they call that service
What has the whole Citroen dealership only own one

[gar074]

I would have thought all of them would have had need of a cam setting tool by now - or they could simply pop down the road to the nearest Peugeot or M*n* dealer and borrow theirs.

Mine's booked in for a week (they know by now that it's never a quick job!) at the end of this month. Not much left to replace now.

[Owd git]

I would have thought all of them would have had need of a cam setting tool by now - or they could simply pop down the road to the nearest Peugeot or M*n* dealer and borrow theirs.

Peugeot dealer apparently told them to feck off when they asked to borrow theirs!

[gar074]

Peugeot dealer apparently told them to feck off when they asked to borrow theirs!

They probably need it too often, and can't afford to be without it!

[cyclone]

Oh come on, the stupid thing is only 150pounds and they cant get there own. http://www.bennetts.com/bmw-and-mini...389-805774.php

[Owd git]

They've never given me any reason to doubt what they've said to me over the last 10 years or so that I've had Citroens from them................

They tell me that they only have two instances now of THPs being brought back to them for investigation - both are being looked at now

CUK told them two months ago that they were in the process of issuing the tools to all dealers (maybe there's more to it than just the one above). Getting a car dealer to stump up 150 quid can be a challenge!!!

They have been pursuing the issue with CUK regularly and reporting back to me regularly on (lack of) progress

I have been emailing CUK over the last couple of weeks

Anyway, as long as it's permanently fully fixed I'll be happy...............

[Owd git]

Got her back this morning

The fault was diagnosed as "incorrect cam angle". The special tools are the clamp as above, and a digital angle measuring device.

The inlet cam was 4.3 degrees out

This has been corrected in accordance with info rapid BIEW010JQ0 (if I read the technician's handwriting correctly) and involved just two replacement parts, one of which I believe is a revised tensioner. To complete the process they installed an ECU update.

Hopefully that's it, and I may now have the same engine map as the current version......which might make a few more MPG?

Pulled very strongly on the way home with no discernable difference in performance to that which I usually had!

PS so far as I could make out from the drawings and diagrams that I was shown the variable cam angle mechanism is confined to the inlet cam, and is purely mechanical and does not involve any servo motors

[beck_4ever]

In the meantime I'm driving around in DStyle VTi which, nice car that it is, just doesn't hack it for me after the THP

Lucky you, thy gave me a nemo to drive.... lol !

[gar074]

So, got mine back this morning after over a week in the menders.

The good news - it's going like an effin' bomb again. Did 40 very lively miles around the suffolk countryside with no sign of hesitation or stuttering.

The bad news - they've no idea what the cause of the problem is.

Apparently the diagnostics showed up "numerous faults", chief of which was "excessive clogging" of the cylinder head & valves with a white deposit - which I took to be carbonisation (although would it be white? I gave up Chemistry before GCSEs!).

They used 2 cans of v expensive cleaner (£50 a pop) to clean up the top end, put a clip on the pipe into the cylinder head to stop the oil seeping out, remapped it, changed the oil & filter (at no charge to me) and that's that.

What's to bet that in 4-5k miles, the fault will repeat itself.

Had a long chat with the mechanic, who said to the effect that PSA don't appear to have the foggiest what the source of the problem is, or how to cure it. He reckons the Pug dealer next door has had the cylinder head off a 207 THP four times, but still can't get to the bottom of the problem. I mentioned the PCV delete, and he was v dubious that the oil vapour would be the cause of my problems, but he was interested when I mentioned that several people on here had done it and found (a) that it didn't affect the normal working of the engine (he thought it might raise the crankcase pressure) and (b) that it seemed to cure the hesitation problem.

Cheekily I said "I suppose if I did that, and then had more problems, you'd tell me my warranty was invalidated" , and he smiled & said "Reckon we'd turn a blind eye".

So, I might give that a go. Not sure what else to do (other than sell it before the warranty runs out).

(Oh, and apparently the whisper in the trade is that the reason why so many DS3Rs had engine failure was that they put the wrong oil in them in the factory...)

[Czar]

So, got mine back this morning after over a week in the menders.

The good news - it's going like an effin' bomb again. Did 40 very lively miles around the suffolk countryside with no sign of hesitation or stuttering.

The bad news - they've no idea what the cause of the problem is.

Apparently the diagnostics showed up "numerous faults", chief of which was "excessive clogging" of the cylinder head & valves with a white deposit - which I took to be carbonisation (although would it be white? I gave up Chemistry before GCSEs!).

They used 2 cans of v expensive cleaner (£50 a pop) to clean up the top end, put a clip on the pipe into the cylinder head to stop the oil seeping out, remapped it, changed the oil & filter (at no charge to me) and that's that.

What's to bet that in 4-5k miles, the fault will repeat itself.

Had a long chat with the mechanic, who said to the effect that PSA don't appear to have the foggiest what the source of the problem is, or how to cure it. He reckons the Pug dealer next door has had the cylinder head off a 207 THP four times, but still can't get to the bottom of the problem. I mentioned the PCV delete, and he was v dubious that the oil vapour would be the cause of my problems, but he was interested when I mentioned that several people on here had done it and found (a) that it didn't affect the normal working of the engine (he thought it might raise the crankcase pressure) and (b) that it seemed to cure the hesitation problem.

Cheekily I said "I suppose if I did that, and then had more problems, you'd tell me my warranty was invalidated" , and he smiled & said "Reckon we'd turn a blind eye".

So, I might give that a go. Not sure what else to do (other than sell it before the warranty runs out).

(Oh, and apparently the whisper in the trade is that the reason why so many DS3Rs had engine failure was that they put the wrong oil in them in the factory...)

I can't see this being true, however if and it's a very Big IF, this was true, that's a scary monumental error for Citroen, if they can't get the basics right, what chance do they have with any diagnostic repairs!

[Jonbays]

This all sounds like a lot of rubbish to me except for the bit about not having the foggiest which applies to more than just PSA. They changed the oil and filter tried a some magic snake oil treatment and prayed for the fault to be fixed by clearing all the fault codes in the ecu.

I think you are rught in a few k the fault codes will build up and the ecu will drop in safe default values to protect the engine rather than run from the std table and you will be back to square one.

I think I would be looking for another garage unless these guys are genuinely going to work with you on finding the fault(s) and prepared to put the time in to study up a little on the engine and take careful observations back to PSA an bully answers out of them.

So, got mine back this morning after over a week in the menders.

The good news - it's going like an effin' bomb again. Did 40 very lively miles around the suffolk countryside with no sign of hesitation or stuttering.

The bad news - they've no idea what the cause of the problem is.

Apparently the diagnostics showed up "numerous faults", chief of which was "excessive clogging" of the cylinder head & valves with a white deposit - which I took to be carbonisation (although would it be white? I gave up Chemistry before GCSEs!).

They used 2 cans of v expensive cleaner (£50 a pop) to clean up the top end, put a clip on the pipe into the cylinder head to stop the oil seeping out, remapped it, changed the oil & filter (at no charge to me) and that's that.

What's to bet that in 4-5k miles, the fault will repeat itself.

Had a long chat with the mechanic, who said to the effect that PSA don't appear to have the foggiest what the source of the problem is, or how to cure it. He reckons the Pug dealer next door has had the cylinder head off a 207 THP four times, but still can't get to the bottom of the problem. I mentioned the PCV delete, and he was v dubious that the oil vapour would be the cause of my problems, but he was interested when I mentioned that several people on here had done it and found (a) that it didn't affect the normal working of the engine (he thought it might raise the crankcase pressure) and (b) that it seemed to cure the hesitation problem.

Cheekily I said "I suppose if I did that, and then had more problems, you'd tell me my warranty was invalidated" , and he smiled & said "Reckon we'd turn a blind eye".

So, I might give that a go. Not sure what else to do (other than sell it before the warranty runs out).

(Oh, and apparently the whisper in the trade is that the reason why so many DS3Rs had engine failure was that they put the wrong oil in them in the factory...)

[gar074]

I think I would be looking for another garage unless these guys are genuinely going to work with you on finding the fault(s) and prepared to put the time in to study up a little on the engine and take careful observations back to PSA an bully answers out of them.

At this stage Plan A is to sell it on while it's still in warranty.

Does anyone have any idea what the hard white deposits that clogged up the cylinder head might be?