Turbo problem

[Dozz]

exhaust gas recycling valve I would tell you to block it off to see if the problem goes away but I got hauled over for the carb cleaner comment I ran my 2.8 paj with it blocked off for about 40000 miles without an issue but I know nothing of vw set up but i'm sure if you just do it to test it it should be fine

[chrisvrscrx]

how is it blocked off??

[chrisvrscrx]

just found this

another reader explained why diesel turbochargers sometimes fail: "The Exhaust Gas Recirculation valve should open to allow carbon dioxide (which acts as a cooling gas) into the combustion chambers when the engine is under load (more than 30 per cent boost). This allows the combustion chamber temperature to drop and thus the temperature of the exhaust gases. If it sticks in the closed position the exhaust gas temperature will rise, causing the turbo bearings to fail and eventually allowing engine oil into the induction system. This can cause the engine to run on its crankcase oil until it is either stalled or goes bang. Problems with EGR valves are also often the cause of rough running when the valve is stuck in the open position as well. In several cases turbos have blown but the EGR valve has not been replaced. Inevitably the new turbo unit will not last long." The most common cause of the EGR valve sticking is dirty, sludged or otherwise contaminated engine oil.
this could explain the oil on the egr but why didnt the ******* pick it up

[chrisvrscrx]

and this too

VW Passat lacking in power,plugged in & retrieved these codes,any ideas anybody please?

17964 charge pressure control (intermittent)

17564 intake manifold pressure sender (present)

17569 intake manifold temperature sender (present)

Thanks in advance.

Sorry forgot to mention it is a 52 plate 1.9 TDI (130bhp)
Hi,

Have you checked the turbo wastegate valve very common on VW & Audi`s causes lack of power when seized.

Phil
robski
Post subject: Posted: Aug 13, 2006 - 02:33 PM
Joined: Jul 03, 2005
Posts: 62

no mate i have not,all i have done is check for codes.It has been into a garage&had a boost pressure sensor fitted apparantly.
When the lad turns the engine off he reckons he hears an air leak from around his brake servo area?he also reckons when he pulls the pipe off from the waste gate there is no vaccum??

robski
Post subject: Posted: Aug 13, 2006 - 03:59 PM
Joined: Jul 03, 2005
Posts: 62
checked the waste gate and it appears to be free!lifted the rod upwards with a screw driver.


robski
Post subject: Posted: Sep 02, 2006 - 06:49 PM

Joined: Jul 03, 2005
Posts: 62
for those who are interested i finally got to look at it myself&sorted the problem today!

after checking everything on the boost side from wastegate actuating valve to the boost pressure control valve,by the way you can swop the EGR control valve for the boost control valve because they are the same to eliminate if its the boost control valve,to eventually finding a vacuum pipe disconnected along the bulkhead.

This was the hiss from around the servo area(intermittent),so the pipe must have only just in the plastic connector,connected back up&runs&pulls like a good un&no DTC's stored !

[Huweth]

If you are thinking of changing the EGR, they are about £100. Check out GSF or ECP online.

[chrisvrscrx]

does anyone know a good specialist in liverpool or lincoln area (i work away) to try and sort this problem out I got told today the oil that is coming out of the egr is because the turbo is knacked in the first place and thats why the oil is in the induction system. And is it safe to drive I have to drive 360 round trip and i dont know weather to take my other car. The fella i went to said some people are told there turbo's are gone and just keep on drivin it for years! I'm off work from wednesday so i'm gunna leave it with someone so they can figure it out but would appreciate some advice on where to take it. I'm handy when it comes to fixing cars just not very good finding the problem espeacially when its so complicated,
Thanks in advance,
Chris.

[ini]

The oil that seeps through your turbo oil seals will eventually blow along the boost pipes, through the intercooler and along to the EGR.

This does not necessarily mean that anything is wrong with your turbo, all the higher bhp PD engines seem to do it.

It is a simple job to drain the lower boost pipe (maybe flush the intercooler on a PD130) and clean the EGR valve.

The best thing that you can do is change your oil on a regular basis, and make sure that you are using the correct oil, which is essential!

Personally, if you have no particulate filter, i would ditch the 'long life' oil type servicing if you use it, and change my oil every 4-6 months.

I would examine the very limited range of oils that you can use, and go for one that is a little more viscous (thicker) at operating temp's. This should help to reduce turbo seepage.

[Huweth]

What ini said.
The mechanic who told you the turbo is shot could easily be lacking knowledge or trying to get money out of you.

[chrisvrscrx]

thicker as in higher number say 4w40 instead of 0w30? i got some fuchs 0 w 40 the guy in GSF said it was what VW put in the engines in the factory dunno weather he was fibbin tho.

[chrisvrscrx]

The thing is the turbo is still a bit funny not boosting properly I've got new oil and a filter and i'm gunna clean everything out and see what happens. oh and its still whistleing but im getting it on the ramp in work to do the oil so i'll have a good luck around.