After putting in my oil catch can and driving home from my friends house. i noticed a loud ticking sound coming from this solenoid by the firewall. What might be the reason for the ticking.

Denso PCS33 211

Heres a picture of it:

 

The catch can should have nothing to do with that. Thats the purge control solenoid (that many complain about)

 

^ is it anything i need to worry about?

 

no, unless the sound annoys you. look in the diy section.

 

for some reason it stopped today