Ticking sound from under hood (purge valve??)

[akingzkid]

Hello all. I had the car running last night with the hood opened while I sprayed some of that spray into the vent intake area that removes the musty smell from blowing through the vents. I noticed a pretty pronounced ticking sound that I had never heard before. To be fair, in the 1 year I have owned the car, I probably haven't ever had the hood opened with the engine running so maybe it has been doing this all along and I just didn't notice it.

Also, I can't recall if it was making the sound before I started spraying the solution in the vent intake thingy or if it started as a result of me spraying it in there. I'm trying to determine if maybe I caused it by spraying it in there. I doubt it but thought it could be a slight possibility. The ticking sound does come and go. It will do it for a while and then stop and then start again.

I have circled in the picture where the sound it coming from and I believe that to be the purge valve. When I put my hand on it, I can feel it ticking. I did some research last night and found that it is normal for the purge valve to make a ticking sound. Is that true and is this normal? Video link below.

Car is 2013 A6 3.0T.

Thanks.

https://youtu.be/nCKUNbDSD6w

[gk1]

Yes the evap valve clicks quite loud, as you mentioned you probably just never had your head that close to it while running.
FWIW if you have VCDS you can activate it and hear it clicking without the engine running. As long as no faults it is likely all well.

[akingzkid]

Yes the evap valve clicks quite loud, as you mentioned you probably just never had your head that close to it while running.
FWIW if you have VCDS you can activate it and hear it clicking without the engine running. As long as no faults it is likely all well.

Thanks gk1. I don't have a CEL. Yes, I do have VCDS. I will run a scan tomorrow to see if any faults come up. Listen to yours for me and let me know if it sounds the same. LOL. It's just weird how it sometimes stops clicking.

[gk1]

Thanks gk1. I don't have a CEL. Yes, I do have VCDS. I will run a scan tomorrow to see if any faults come up. Listen to yours for me and let me know if it sounds the same. LOL. It's just weird how it sometimes stops clicking.

LoL. It is a valve after all. Doesn't always need to run. :) Only when it feels like purging.....

[prestige.phantom]

My car sounds the same. I was concerned when I first heard it, but Im not pulling any codes, and the car runs fine, so Im not worried

[akingzkid]

LoL. It is a valve after all. Doesn't always need to run. :) Only when it feels like purging.....

LOL. Gotcha. Makes sense.

- - - Updated - - -

My car sounds the same. I was concerned when I first heard it, but Im not pulling any codes, and the car runs fine, so Im not worried

Thanks for the feedback. I appreciate it.

[krwalkman]

Late jumping in here, my A6 does the same. Interestingly, I have never heard it from the SQ5.

[akingzkid]

Late jumping in here, my A6 does the same. Interestingly, I have never heard it from the SQ5.

You are not late. You are on time. Thanks for your feedback.

[akingzkid]

I ran a VCDS scan today and did not find anything wrong. I also tried to test the purge valve and got an error message (it would not run the test).