Your on!

 

So I have had this noise since I posted this. Today, I replace a broken spark plug and, lo and behold, the ticking nosie was GONE. Why would a broken spark plug be causing a noise like that I wonder? With no secondary electrode to arc off of, I bet that spark was just arcing either off the plug itself or the cylinder wall! YIKES! Still, no performance issues that I noticed but sure is more quite now. Will update (if people are interested). So for future readers, If you have a new ticking noise, although most likely extremely rare, it could be a plug! Who knew!

 

I ran a plug with a broken whisker for a while, didn't even affect MPG. That was when I learned not to try adjusting Iridium plugs.

 

Hello! My chevy hhr 2009 is currently making that noise but it’s only while I am driving not while the car is parked and running. Did anyone come to any conclusions as to what it could be? I’m clueless. Thank you in advance.

 

Hi Colleen, to the forums!

The solution to the OP's problem is mentioned above, as are other suggestions.