Whooooosh when let throttle

[passenger]

I did, nothing changed

Today I read a lil bit about problem. So turbo like mine has no blow off valve, so if actuator is jammed or vanes are jammed, he is sending air back to air filter housing (like mine case).

What I can do:

- in VIDA to find how to move actuator and see what's happening. Electronic is okay, otherwise would be error about actuator itself.

- if I hear actuator motor running but no moving, can be that gears in actuator are broken (or what ever is moving that) or vanes are jammed. I dont know how to unjammed vanes.

Thanks for effort. I appreciate it.

[passenger]

I cannot wait. I'm taking wife and baby to listen under the bonnet while I'm doing on VIDA.
I will write back

[hal9000f]

Originally Posted by passenger

....
I dont know how to unjammed vanes.

Thanks for effort. I appreciate it.

You seem like you are capable of doing a lot of difficult work yourself and one would be very happy that you succeed :-)

Try googlin this for vanes:

how to unstick turbo vanes volvo

(or any other car maybe)

But, who knows if you can do some damage when trying that :-(

[bananarama]

Cleaning out the vanes probably means removing the turbo and giving it a clean OR a new turbo.

In case it helps, I found this video really useful. I used to have a Golf TDI which had vacuum operated vanes instead of electronically.

Good luck man!

[Baffler]

I'll go back to my original point in relation to the intercooler...have you had it pressure tested to determine if it's damaged or not?

If it is the original part it is now at 15 years so, given its location, has been through a lot of conditions in that time and may very well be the root cause of your issue.

VIDA will not diagnose a damaged intercooler but will pick up on every sensor along the charged air route...including the turbo.

In your earlier video it was clearly boosting, which eliminates the turbo, but it is that pressure release that is of concern. Where is that pressure being released from?

[passenger]

Not a option by me. I dont have conditions for that, seems turbo iz behind and I need autolift for some time to do it (for post about removing turbo.

So in corner again but step closer:

First of all, I put down my hand searching for anything loose and of course hose clamp from turbo is completely loose. I'm spinning clamp around hose. Thanks mech for that. I didn't thing it now, because it's pig job and also I have plan to remove it on weekend and to see what is behind and how dirty.
Loose clamp is for sure not problem here, but maybe caused, dont know, I'm cheese curing robots mech, not car mech lol



VIDA says it's done without hearing or without moving rhat connection link. Strange. For example, I did adaptation of swirl flaps stepmotor and clearly it's moving



After I gave push with finger I a little bit while doing adaptation, Some bzzzz noise came. Then 2-3x no connection with motor (no errors tho) , then again doing normal adaptation (again without moving parts)



Then I drove and same whooooooshhhhhhh sound after letting throttle and not having full boost.

Here is graphic





And just standing car without starting it, position should be 0 or 100??



I wish I can trust those chemie and clean turbo. Dont know what next.

Any suggestions?

[passenger]

Originally Posted by Baffler

I'll go back to my original point in relation to the intercooler...have you had it pressure tested to determine if it's damaged or not?

If it is the original part it is now at 15 years so, given its location, has been through a lot of conditions in that time and may very well be the root cause of your issue.

VIDA will not diagnose a damaged intercooler but will pick up on every sensor along the charged air route...including the turbo.

In your earlier video it was clearly boosting, which eliminates the turbo, but it is that pressure release that is of concern. Where is that pressure being released from?

No, I didn't check IC, dont have equipment for that. What I can do is remove bumper and remove IC and give a look. It will cost me 2-3h probably. But would be some sound if IC is leaking?

Yes, it's boosting but now a lil bit less, causing car shaking a lil bit and hesitation in acceleration.

Well as I read a little bit about it: if actuator is not working, boost is going back to air filter housing like mine case.

[hal9000f]

Originally Posted by passenger

I wish I can trust those chemie and clean turbo. Dont know what next.

Any suggestions?

Found this with your error ECM P023484, and google translated it. The problem was the actuator:

https://www.volvov70forum.com/noodlo...ik-t21234.html

Good luck.

[Baffler]

Originally Posted by passenger

No, I didn't check IC, dont have equipment for that. What I can do is remove bumper and remove IC and give a look. It will cost me 2-3h probably. But would be some sound if IC is leaking?

The intercooler can be pressure tested in situ by removing the boost/charge hoses, blanking off one end and fitting a cap with a built in valve on the other end and then applying pressure with a suitable pump with guage.

Originally Posted by passenger

Yes, it's boosting but now a lil bit less, causing car shaking a lil bit and hesitation in acceleration.

The hesitation may be caused by the loose fresh air pipe clamp allowing unmetered air (MAF sensor can't correctly monitor flow) to be drawn into the turbo/engine. Tighten up that clamp as your next step.

Originally Posted by passenger

Well as I read a little bit about it: if actuator is not working, boost is going back to air filter housing like mine case.

Ok...I wasn't aware of this...I've never owned a D5.

I think I may have read something on how to free out sticking VNT vanes...will have a search.

[passenger]

Tomorrow I will bring car home. Today I took company's car. And on weekend I will try to remove actuator and try to move vanos or how it that name. If is free moving, I will order actuator. If it's stick, then I will order new turbo or remove that and cleane it. But need to pay that, cause apperantly bevel gear need to be removed. Jesus Christ, I will buy Mazda 6 2.0 petrol 2016-17 year. Dont have time for this kind of shyit

Thanks all for suggesting. I will writebback as soon I know more. And yes, I will tight that clamp vefore I drive tomorrow