What is the timer sounding noise coming from under the hood while the SS is idling? It's not a motor tick or anything, it literally sounds like a timer. When I shut it off it sounds like something closes or drops. I you haven't heard it before, sart up your SS and listen to it idle, I bet you'll hear it =-) Like I said, I don't think it's a problem, just want to know what it is!

 

Since I can't hear the noise I can't be sure, but it is probably the purge solenoid. There was a thread about this before and other SS owners were hearing it. It's normal to hear it because it means it is working.


Here's the link:
https://www.chevyhhr.net/forums/hhr-ss-45/clicking-noise-engine-after-turned-off-parked-14711/

 

Good! Glad someone else is hearing this too! Guess I should have used the little search button, oh well that other thread was a long time ago. A good time to bring it up again!

 

LOL......I hear it every day.......

 

I believe what your hearing is the Direct Fuel Injection. Don't know what's dropping out after you shut it off but I hear it too

 

My 07' Golden Teal Does The Same Thing As Well!!

 

isn't it just the belts stopping when you turn the car off, that what i always thought the dropping sound was, and yes the ticking is the direct injection.

 

I think Chadpuska is wrong its not the belts it happens like 3 or 4 sec. after the engine is completely stopped all the way... So it's not the belts.

 

I would guess it's the throttle blade , at least that's what it sounds like to me on mine

 

direct injection is the cause of the sound, there is also a secondary fuel pump that is noisy, capable of over 2000 psi