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XC90 '02–'15 General Forum for the P2-platform XC90 model

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Very Excesssive Smoke

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Old Apr 13th, 2022, 08:32   #21
paultyler1
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Latest update. Insurance company now involved and their expert (I use the term loosly!) examined the car yesterday. Not much help! Says I have to take the car to a suitable garage (not necessarily Volvo) for a complete examination at my cost to determine the fault. Volvo still insist that the piston rings have gone even though they have done no compression or cylinder leakage tests. The symptoms now are a lot (but not excessive) vapour coming out of the filler cap. The engine starts easily but the pressure in the system either blows the crankcase vent pipe off the valve at the front of the block or it splits the valve (which appears to be a click fit). Is this the pcv valve and would a blockage of this cause the symptoms? I've read somewhere else that the pcv valve should be replaced at 100k miles. Is this so? Mine never had even though it's been regularly serviced.
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Old Apr 13th, 2022, 09:28   #22
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PCV replacement is not programmed for any mileage. PCV issues are all but unheard of on these diseasel engines.

Is your dipstick being blown out? I find it difficult to believe that the PCV could be at fault and cause smoke that badly and it wouldn't have been blown out.

To be fair to the first garage, a ring problem is still the best fit for the symptoms. What makes you thinkmyou know better than they do? It would be helpful if you could share you reasoning. In the time that had elapsed you could have bought an inexpensive compression hauge and done it yourself if it came to that.

If the next garage say the same will you start to believe them? This has been dragging on for a while now and anyone else would have just had the blasted thing repaired instead of mincing about with this and that. I'm not sure how consumer law works kver there, but its easy here - if a garage tells you a fault is a particular item, they take it apart and they are wrong then you do not have to pay for their mistake (just make sure you have their diagnosis in writing first), so there is nothing really to lose.
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Old Apr 13th, 2022, 10:27   #23
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I think you'll find he is mincing about because he has just spent 7000 euros and believes he still has the same problem. How much could the end bill be? You must make your money a lot easier than the rest of us. His first mistake was reading posts like yours that the only garages that can fix xc90s is a main dealer.
He is struggling and worried due to the high costs and came onto the forum hoping to get help and all you can do is criticise him.
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Old Apr 13th, 2022, 20:20   #24
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Quote:
Originally Posted by ltec View Post
I think you'll find he is mincing about because he has just spent 7000 euros and believes he still has the same problem. How much could the end bill be? You must make your money a lot easier than the rest of us. His first mistake was reading posts like yours that the only garages that can fix xc90s is a main dealer.
He is struggling and worried due to the high costs and came onto the forum hoping to get help and all you can do is criticise him.
You beat me to it! Perhaps it was missed that I had already paid for the repair and, now, 5000 miles later exactly the same symptoms are there. To answer the question, no the dipstick isn't being blown out. I can't buy an inexpensive compression tester because (a) I doubt if I could get an injector out (b) I doubt if I could get a glowplug out and (c) the engine won't run because as soon as I start it the hose blows off or the valve splits. Reading on the internet, all my symptoms are exactly what indicates a blocked valve.
My gripe is with the main dealer who didn't carry out any testing of the turbo, has never done a compression or cylinder leakage test and has never examined the pcv valve. When they replaced the turbo there was never any investigation as to why the turbo had failed and I gather that excessive crankcase pressure caused by a blocked pcv valve can lead to oil seal failures in turbos. I'm now being told that I have to pay for all the investigation work. I've contacted Volvo France and Volvo International but they are not interested.

I'm not too worried about the money and I've just bought a V90 but I didn't want to buy a new car as I was hoping the XC would last me for another 5 years until electric/hydrogen power was more convenient. At the moment the XC is virtually worthless and I just want the issue resolved.

Incidently, I've always gone to a main dealer for servicing/repairs as I thought I'd get a good deal - that was a big mistake!
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Old Apr 13th, 2022, 21:36   #25
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I would change the Pcv valve just to rule it out, but could definitely have potential in either helping or sorting the issue.

They are about £27 from a dealer I have changed mine after a few threads on here about oil consumption and this valve seem to fix it.

Good luck with sorting it 👍
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Old Apr 14th, 2022, 17:21   #26
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As far as I know the PCV is a fairly common issue and there are a few threads on here about it. I changed mine a couple of years back- not easy but not too bad- access is limited. After I changed it, there was a huge improvement on smoke esp. at start up. Also a huge improvement on oil consumption. Make sure you also check all associated hoses for blockages/kinks etc. Oil consumption further improved by only filling oil to mid way up dipstick range.
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Old Apr 20th, 2022, 21:37   #27
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More news. Still waiting to get the car to a garage to do a compression and cylinder leakage test. In the meantime I wrote to Volvo International in Sweden. I've previously written to Volvo France but they can't be bothered to reply. Anyway, I asked Volvo if they considered that less than 150k miles was satisfactory for a D5 engine and turbo in a car that has been regularly serviced by Volvo agents. I also asked a few other general questions. I got a reply today saying that they couldn't answer my questions because they had no one with any technical knowledge in the organisation!! Unbelievable!!
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Old May 5th, 2022, 20:26   #28
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Further update. The car has now been taken to a diesel specialist. The turbo has blown again, the DPF and cat are damaged. Exactly the same as it was before Volvo repaired it. Compression is fine, no evidence of any ring or piston damage. The specialist suspects that the inlet manifold may be cracked as well but will not, at present, investigate further pending additional instructions from the insurance company. Insurance company has told Volvo that they have to repair it again, Volvo have requested another meeting with the insurance expert which is scheduled for 2 June.
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Old May 8th, 2022, 14:12   #29
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I had a similar problem with my 2006 185BHPD5. It turned out that the turbo seals are leaking oil which was causing the DPF to block and give me a spot filter warning.

I ended up replacing the turbo and the DPF and it fix the issue. I had to replace the DPF as it was completely blocked and I couldn’t find it off with a revel. Hope this could be of some help?.
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Old May 8th, 2022, 23:02   #30
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Thanks for this but it's now blown 2 turbos,2 dpf's and 2 cats. Obviously there is an underlying fault but Volvo seem incapable of finding it. Fortunately they have to pay for replacing the turbo etc.
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