I seem to be getting this random chirping sound on cold starts. It sounds like a squeak almost of some moving part. It doesn't always happen, and I know if I bring it in, i"ll get the "We can't duplicate the noise" routine. Does anyone have any idea what it could be, is it a problem, etc. The car has 16,000 miles on it.

Thank you

 

Joe, does it sound like it could be exhaust hangers jostling slightly while engine initially torques at startup?

On my C2S w/7K miles I get some exhaust rattle for the first few sec's after startup. I think it's heat expansion in the cat converters and/or a bit of metal/metal hanger contact, no big deal at all because it always goes away 100% after around 20 seconds. My co-worker who has a 997 gets the same sort of thing so if it's the exhaust settling in, it seems normal.

 

I can hear it behind the rear tire in the wheel well. It could be coming from the exhaust.

Thanks!

 

I also started noticing the noise after the tailpipe recall was done.

 

I get this too occasionally. I think it's exhaust related. Mine started happening when I installed the EVO airbox and GIAC.

 

Mine has it too, seems to go away after warm, i too noticed it more after the evo intake.

 

Are you sure there isnt a bird stuck inside your front grill?
Well, if you ever look in there,.. you wont believe what you will find!

Seriously check this pic out:

http://www.rennteam.com/showflat.php...&page=1#239070

Silly me