S60 D3 Whistling noise and loss of power
 

Hello all,

Newbie in the Volvo world here. Few weeks ago I bought a 11 plate, S60 D3, 94K miles on the clock, all things good, quite impressed with it being my first Volvo(owned and driven). 2 days ago I noticed the car does not pull as before around 1500rm - 2000rpm and yesterday I noticed a whistling sound when accelerating but mostly between gear changes and when decelerating, youtube video attached:

https://youtu.be/XmMJg2z2iWk

I can assume this is caused by a loose hose on the intake piping?

any piece of advice is welcome, thank you

It will be a burst turbo hose , get someone to rev the engine whilst you listen under the bonnet , you might be able to feel a jet of air blowing out somewhere .. Favourite place is below the left headlight area …under the air filter box ( Intercooler to throttle hose )

Thank you for your reply. I’ve checked the hose you advised but there is no ‘hissing’ noise from that side. While idling though, you can hear air escaping from the driver’s side but the intercooler hose seems to be fine, no visible holes, cracks, etc. I’m having it serviced next week and I’ll get the guys @ Volvo to have a look at it

So I’m at the dealership and a technician just told me that there are no burst hoses, but the DPF is at 24,6g of soot and recommended to do a manual regen and this might be the cause for the loass of power and even the whistling noise

Will update later

He should be fixing the cause , then it will regenerate itself .manual regenerations are very severe and do not do the Particle filter any good .

Apparently there are no faults other than the DPF according to the diagnostics tool

perhaps it is about to regenerate of it's own accord , You get a message up SOOT FILTER FULL when your driving is not suitable for it to regenerate so you are supposed to go for a 20 minute drive at 50 mph to let it regenerate , if you still cannot do that then the message changes to ENGINE SYSTEM SERVICE REQUIRED when you have to take it in for a forced regeneration , ignore that and will need a new particle filter ..

Has he taken it out for a drive to gain an opinion ?

He’ll have it serviced and then go out for a test drive.
So in your opinion the DPF does not have anything to do with the mentioned syptoms of the car ? Also forgot to mention that fuel consumption went up (43 mpg to 40.5mpg according to the OBC) since the issue started

It is very difficult doing anything like that from a distance , ears and eyes on the job should get to the bottom of it ..
I have never known a damaged Particle filter cause a noise … and I assume you have not had those messages I described ...

No I’ve had no messages, and since I’ve bought it I had a weekly drive ( 30 minutes, at least, from 30 mph to 70 mph) and I’ve just a had a 60 mile motorway drive , but the guy said that if the DPF goes over 10g of Soot it can’t regen itself - I am not a specialist so I will not comment

I’ll see what he comes back with once he drives it ... let’s hope he gets to the bottom of it without a forced regen

Will update



Thanks