[V8] Charcoal Canister Frequency Valve

dsaad at icehouse.net dsaad at icehouse.net
Wed Mar 10 10:46:00 EST 2004

I think the name gives this one away - It is in fact normal for it to be 
clicking (thats the frequency part). 
All cars I am familiar with click the same way.
If there is a cracked or broken hose here you could be getting un-metered air 
in the motor.


Quoting "Korn, Bob" <Bob.Korn at Fike.com>:

> Don't believe I seen any discussion on this item in my time on the list.
> As I have been trouble shooting the miss or stumble I have in the V8, I
> noticed that the solenoid on the frequency valve on the canister in the
> right front wheel well is constantly clicking off and on.  I had not
> noticed
> before, it sounds like a noisy valve.  Any one have a similar operating
> valve?  Think this could affect the performance of the motor, cause a
> miss
> or stumble?  Can't see in there, will have to remove a few things to see
> if
> I have a vacuum line off or broken.   I was able to get my finger on it
> and
> feel it constantly clicking.
> ???
> Bob
> 90 V8Q  135K  Pearl, Gray Sports
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> Have an Audi V8 question?  Check the Audifans Knowledgebase!
> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
> Have a V8 answer? ... Please help others by adding to the KB ... all
> contributions welcome!

More information about the V8 mailing list