Jabrony

Is this common? The original OEM Bosch DVs were not failing but I figured that I would replace them when I did my 30,000 service along with plugs and solenoids. I had never noticed that noise before the change to replacement DV's.

Thank you for your help.

T10Chris

I had the same thing happen to me, double check all of your connections. I found something had came loose.

Kevin

Pressure test your intake system. And then pressure test it again for practice

Jabrony

Thank you Sir...Thank you Kevin..... Love the practice advice...

z06801

I swapped mine out for some Kayser brand from Pelican so I could send my Evoms units back to be rebuilt. Was getting secondary air codes so I suspected leaking or worn out DVs, Now I do to hear a slight honk coming off low boost accelerations do I'm still getting the the same 0491 0492 codes for the secondary air.

Jabrony

I have not seen any codes in quite a while. However, prior to the replacement I was getting the same 0491/0492 codes....weird...

levinsje

It happened to me last week.
The fix was very easy as one of the diverter valve hoses came off.
5 minute fix but I needed to clear the check engine code with Durametric before the limp mode would turn off.

ducnine

Our cars are not supposed to make that blow off "whoosh" sound?
I assumed all turbos had some noise, but in my car I have not been able to distinguish any sort of Turbo noise.

jerry1847

the oem intake and exhaust setup mute all the turbo sound.

If we had an intake option that deleted the air box and replaced it with a cone filter you would probably hear the turbos loud and clear.