2.0 Hdi power loss, EGR, Turbo? - BobbyG
Car in question is my dad's Peugeot 806 2.0hdi Y reg.

I was driving it a couple of weeks ago and noticed that the power steering was very heavy (not sure if thats relevant) and the car itself just had no poke at all. I used to love driving it as it had a good bit of oomph When I mentioned this to my dad he said that he had noticed when he was pulling his caravan that he was having to change down gears a lot when he doesn't normally need to.

Anyway booked it into his local garage who "specialise" in Peugeot. He hooked it up to a fault reader which said that there was a fault with the turbo solenoid. He stripped it down and said he couldn't find anything wrong with it. Took it to his pal who had more technical equipment and his apparently diagnosed an intermittant fault with the EGR. They put some fuel additive in the car and reset the fault memory and have asked him to drive it about for a few days to see if it has made any difference. I drove it today and it is still the same. I gave it an Italian tune-up but that didn't seem to make any difference (a one-off probably wouldn't anyway)

From what I know of EGR(very little) they can be susceptible to round-town stop-start journeys which my dad has done a lot of over the years he has had the car.

Will this be an expensive fix? Is it the start of lots of repairs trying to get things sorted?

(Re the power steering the first garage said his fluid level was low and topped it up but it was still very heavy today)

Any help appreciated!

{Slight adjustment to header at authors request - DD}
Peugeot 806 power loss, EGR? Turbo - Screwloose
Bobby

EGR valves aren't that much of a problem on the HDi.

This is a wild guess [treat it as such] but I wonder if the crank pulley has started to come apart and is slipping the drive to the power steering pump?

If so; it's common for a strip of metal to fly out and often jump the cam belt a tooth or two. That gives a loss of power all right.

Get the garage to investigate the heavy steering. If the pulley's gone - check the cam timing.
Peugeot 806 power loss, EGR? Turbo - BobbyG
Cheers for that screwloose, will definitely tell my dad to make that suggestion.
Peugeot 806 power loss, EGR? Turbo - BobbyG
Further to this earlier thread in May, car went back and forth to a Peugeot dealer, diagnostic checks etc but I drove it again tonight and it is still the same.
I will try and find out from my dad tomorrow what the dealer said but in the meantime any more suggestions will be appreciated (screwloose, I believe they investigated your suggestion but discounted it)
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
Peugeot 806 power loss, EGR? Turbo - Screwloose
Bobby

It was a wild guess; I was trying to marry-up heavy steering with a power loss. Maybe there's no connexion - have you checked the front tyre pressures?

Have a look in the VIN number on the vehicle [or the log book] for the letters RHZ or RHW - that's the engine code and would help a bit.
Peugeot 806 power loss, EGR? Turbo - BobbyG
Screwloose, VIN is VF3AFRHWB12818289.

Apparently back in June he put it into main dealer who diagnosed that the turbo solenoid valve was faulty and this was replaced at a total cost of £117.50.

Yesterday was my first time of really driving it since then and it is obvious to me that it has made no difference at all. I have told him to go back to the dealer and tell them this and give them another chance but I don't want him to start going down the route of getting one thing after another replaced which, reading threads here, seems often to to be the case!


Don't know if it would be better trying to find a diesel specialist, just feel that, maybe naively, the Peugeot dealer should know the answers!

--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
Peugeot 806 power loss, EGR? Turbo - David G.I.Davies
The position of the turbo solenoid valve on the 806 HDi (low down at the front of the engine) can cause deterioration of the wiring to the valve.This would also cause the fault code for the valve to be set. Suggest you ask your specialist to examine closely the wiring loom connecting to the turbo solenoid valve.
David Davies
Peugeot 806 power loss, EGR? Turbo - Screwloose
Bobby

That makes it a 110hp 16-valve HDi.

It would be interesting to know if that code has returned, as David is quite right; the code is for a fault somewhere in the whole circuit - not necessarily in the valve itself.

Maybe give the dealer a chance to have a more successful try - but don't pay any more.
2.0 Hdi power loss, EGR, Turbo? - injection doc
We had a 406 2.0hdi in our workshop that had very little power & a specialist advised us to run up hot, remove diesel filter & fill with comma injector magic ( diesel one) start back up & idle for 20 secs turn off & leave overnight then take out for italian in the morning & cured that well & good.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
David / Screwloose / ID,

Thanks for your suggestions so far, will suggest these to my dad and let you know outcome,


--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - Collos25
The same as adding a pint of petrol.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Car booked in to dealer next Wednesday, will keep you posted.

Cheers,
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Update and more advice required!
Car went into dealer today and they have advised him that he needs a new "turbo pressure unit" and new PAS pump. Total cost inc fitting, £1k. Apparently the turbo part alone is £400 + vat.

So, where does he go from here? Can you get "reconditioned turbos" and PAS pumps? Does this look like it is the correct answer or are the garage going for an easy option?

Any advice appreciated.
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - Screwloose
Bobby

What the... is a "turbo pressure unit?" [Nobody say PSI.....]

The code was for a turbo control valve; is that what they mean? [£400 seems a bit keen?]

Re-con PAS pumps are widely available.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Screwloose, He is on his way to collect the car just now, I have asked him to find out as much info as possible, fault codes, part numbers etc and will report back.

Thanks,
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Apparently it registered the code 8930 on the Peugeot Planet 2000 system (if that means anything??)

It will be a new turbocharger unit at a cost of £400+vat for the part alone.

Had a quick look on ebay and there seems to be some although not sure of exact part he would need. Going to speak to his local independent to see if he can do the labour if required and also if he knows of any contacts who can supply the turbo / PAS pumps.

This is quite annoying as my dad was thinking of downsizing maybe at the end of this year if he decides that he is no longer going to be pulling a caravan. If he spends money on it now, I don't believe he will recoup a single penny of it in trade in as the car still drives just now and with it being a Y reg, realistically it would probably go to auction and he would just be given book price for it without a drive to check it out.

Just concerned that, as hinted in my earlier post, that this is just going down the road of replacing bits at a time and this won't be the end of the matter. At least if he goes to the dealer and spends full whack, he will have comeback against them as opposed to going to an independent and instructing them to change the part?
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - Aprilia
If it'll drag itself about under its own steam then get it p/x'd or off to the auction.
2.0 Hdi power loss, EGR, Turbo? - Screwloose
Bobby

Another HDi fault has just made me think of yours. Has this one got a primitive soot filter in the front of the exhaust?

Given it's type of use; I'm wondering if it's blocked up.

Apparently; that can flag false turbo boost solenoid codes when the ECU asks for more boost and doesn't see any.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Screwloose, I have no idea - how do I check?

Aprilia - that is one of the possibilities buthe really wasn't wanting to change the car just now unfortunately. Car is still going just now so that gives him a wee bit of time to think through the options open to him.
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - Screwloose
Bobby

Just stick your head under the car and look for a taper-ended canister in the front pipe just back from the engine.

There doesn't seem to be any rhyme or reason as to fitment; but it fits the symptoms to a tee.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Screwloose, passed your info to my dad and he was going down to see his independent anyway. He confirmed that it didn't have the soot filter.

Another suggestion had been a cracked intercooler pipe but apparently this is very obvious due to the noise it gives and that wasn't the case. However the indie has suggested that he has heard of problems with Air Mass Sensor so he is going to see if this could be the problem.

Unfortunately my dad goes to Ireland next week so wont be able to book car in till he comes back.

Whats your thoughts on the possibility of air mass sensor?
--
2007 Seat Altea XL 2.0 TDI (140) Stylance
2005 Skoda Fabia vrS
2.0 Hdi power loss, EGR, Turbo? - Screwloose
Bobby

Ah well; it was worth a look.

Split pipes should hiss, but I've had a run of 406's with split rubber hoses that the drivers were apparently unaware of. It might fit your symptom; but none have had that code.

Oilyness around the leak is usually the giveaway. The one right down at the bottom of the radiator is the most common.

MAF sensor is very possible; but the "lack of boost" code doesn't tally - wouldn't be the first time that a code was wrong though....
2.0 Hdi power loss, EGR, Turbo? - wicked_buffy
I'd make absolutely certain it's not the air mass flow sensor. On my 206 2.0 HDi I've had 3 go, thankfully all under warranty. Everytime there was a loss of power, but with no fault lamp on the dash. Initially, the dealer said it was a leaky turbo the first time around, and spent 4 days with the car and then said it was OK. Well it wasn't - no change. After a heated debate he agreed to try a new MAF sensor, which fixed the problem instantly. As for a sluggish PAS, don't know unless by coincidence the pump had degraded.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Well believe it or not, this is still ongoing, just reading the other thread on Peugeot HDIs made me dig this one out again.

To cut a long story short , dad hasn't been too well and couldn't be bothered with hassle of getting car fixed. It was still driving around albeit with no turbo.

Booked it back into his Peugeot indie as he has just invested in a new diagnostics system thingy and it is now saying he needs the air mass sensor (as previously suggested).

He has been quoted £142 + vat. Dad said to indie to go ahead as long as he was sure it would make the difference!
Indie apparently has a friend with the identical car so going to try swapping the sensor first of all to see if it makes the difference.

Re the power steering issue, it still is very poor when parking but works fine while driving. Dad will get this fixed if he gets the other thing fixed first.

Just like to echo the comments on the other thread, thanks to Screwloose for all his help.
2.0 Hdi power loss, EGR, Turbo? - ex-Triumph man
The loss of power sounds as though it could be similar to that experienced on the Land Rover Discovery Tdi. This was found to be the turbo air intake hose delaminating. It looked fine on the outside, but the inner layers collapsed starving the engine of air. Good Luck.
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Screwloose, quick question, how likely is it that one air mass sensor from one 806 2.0hdi will fit another with the same engine? Are they all the same or is it like various other items like starters etc that there are different makes and models which might not be compatible?

Indie can't get hold of friends car this week and goes on holiday at end of week. Dad has the option of paying for the new mass sensor to get fitted and taking a chance that it definitely does work or waiting till the indie comes back from holiday and tries to get his friend's car?
2.0 Hdi power loss, EGR, Turbo? - BobbyG
Bump
2.0 Hdi power loss, EGR, Turbo? - Screwloose
Bobby

Sorry; missed this one yesterday - too many posts on too many forums....

It's quite possible that they are similar; if the hole's the same size and the wiring numbers match, worth a try.

How does it go with the MAF unplugged? Default values on these things are pretty good.

2.0 Hdi power loss, EGR, Turbo? - BobbyG
Well he swapped the sensors and it made no difference.

Indie has stripped down "the whole turbo unit" tested it and everything is OK. Indie has recently taken delivery of new Bosch diagnostic eqpt and is going on a "training course" with them next month on common rail diesels. He has said to my dad that he will take my dad's car along to use it as a guinea pig!

This is just so annoying, my dad is loyal to his Indie, quite rightly since he hasn't really charged him for any labour (yet) but if this is ultimately going to a be a £1000 repair, dad would just trade in now.

However if it turns out to be something simple, say for a couple of hundred, he would get it fixed and keep car for a bit longer!

Dad didn't ask about the MAF unplugged, worth going back now to ask?

Screwloose, can you not move to Glasgow?????
2.0 Hdi power loss, EGR, Turbo? - Screwloose
Screwloose can you not move to Glasgow?????


Funny you should ask that - for the last seven years I've been desperately searching for a nice little semi-retirement workshop all along the West Coast from Kilchenzie, via the islands, to Ardnamurchan and Aultbea.

Frankly; a nuclear waste dump would probably have got a warmer reception from the local councils. I've rung the local, tax-funded, HIE on numerous occasions and I'm still waiting for the first of the oft-promised ringbacks.... [I even called round once - they'd moved....]

I can only assume that everyone in Argyll, Lochaber and Wester Ross is already well-served by myriad diagnostic specialists in every coastal village and crofting settlement; or that they haven't yet realized what's just about to hit them......

Edited by Screwloose on 21/02/2008 at 19:20

2.0 Hdi power loss, EGR, Turbo? - BobbyG
They don't need diagnostic eqpt - electricity hasn't reached them yet!! :)
2.0 Hdi power loss, EGR, Turbo? - drivewell
They don't need diagnostic eqpt .......


..... because the 20 - 40's are driving Impreza WRX's, 40-60's are driving Outbacks, and their grannies are all driving Justys. That's why they don't need you, Screwloose!

No, seriously. It would be great to live and work out on the West Coast. Spent the second half of our honeymoon in a wee yacht haven half way between Oban and Lochgilphead. (good grief - 20 years ago!)

Hope you find a place eventually - Love Aultbea as well - used to holiday at Laide (just the other side of the hill)

And hope your dad finally gets his 806 sorted, Bobby.

2.0 Hdi power loss, EGR, Turbo? - Screwloose
drivewell

I think you'll find that yacht haven isn't exactly wee anymore.... You must've stayed well clear of the Corryvrecken Sea Monster; or you wouldn't be here anymore....

Funnily enough; I came within a few hours of sealing a deal on a harbour-side workshop, with a jetty, at Salen, Ardnamurchan - but the local yachties decided that their need for [free] access to their boats was far more important and are using £500K of taxpayer's money [and the Land Reform Act] to push me out.

So if anyone knows of somewhere near the coast.....
2.0 Hdi power loss, EGR, Turbo? - Waltervp

I know it was a long time. .. but was this ever solved? ??

2.0 Hdi power loss, EGR, Turbo? - Gibbo_Wirral

If you're having the same problem, take note of all the things it could possibly be. It would be a huge waste of time and money to throw parts at the problem without a good diagnostic check.