Ok, a couple weeks ago I noticed that it was making some different/weird noises at idle when fully warmed up. It doesn't do it all the time. Maybe 3-4 times in the past 2.5 weeks. It only does it when warmed up (and not always). Oil is roughly 4 months old but topped off with new oil every so often (I travel alot so the car sits for some time). I checked to make sure that the oil wasn't low (according to the computer). Car otherwise seems to drive fine.


http://www.youtube.com/watch?v=RXwRL-U083c

 

does it go away when you rev it up??

 

Colorinc, thanks for the reply. Yes when you rev a little it goes away... Comes back at idle. Goes away the next time I drive (after completely cooled down and sitting overnight). As previously stated only happened 3-4 time in past 2.5 weeks.

 

they all tick/rattle a little then it goes away when you bring it off idle... these engines are pretty bullet proof unless you crank the boost and run pump gas....IMO nothing to worry about... could be a chain tensioner making some noise i have listed to a ton of these things and they all make some sort of sound... some worse than others.. relax and enjoy

tim

 

Sweet... Got me worried because it didn't do it previously, and it seems pretty loud.

 

keep an eye(ear) on it if it changes frequency or gets louder you may want to get it checked out

tim

 

It sounds like a flapping noise and it sounds rotational rather than a clicking. I would check belts for any fraying. Maybe part of the belt is flapping arround.

 

Just incase no one caught it... it sounds louder around the wheel wells and not from directly behand car if that maks a difference...

 

Stupid to answer from a computer which doesn't have audio but anyway, check out if the exhaust system is properly installed. One of the mufflers might be only a tiny bit loose and thus making the sound.

 

Sounds like a frayed belt? Let us know if you learn more....curious. G/L!

 

i have the same noise, i disconnected the belt and it still has the same noise. is it possible the flywheel is making that tinny sound,chain tensioner?,or what do you think? bring it above idle it seems to go away.... thanks

 

Take a garden hose and cut a foot or more ... place one end next to ur ear and the other on the car.... you find it in no time....

it sounds like a clutch... did u ever put in a aftermarket clutch? what happens when you predd the clutch pedal all the way to the floor?

 

i did that with the hose,it sounds like it is coming from the case. no new clutch. no rattle noise from exhaust.

 

i have been through this with my local dealer i brought it in and there hapend to be 2 other 996tt there and they all bade the same sound at idle a rattle that goes away just off idle 1500rpm's or so... the ptech seemed to think it was chain tensioner noise.... anyways its been 5000 miles and it still rattles and runs strong as ever...

 

As far as I know (bought it used) there is only the Fabspeed exhaust, and I added the AP carbon fiber intake that Vivid was offering. Noise seems to be louder in the wheel well area and you can hear that in the video (I know its at night but you can kind of make out the car). I want to swap on a few parts but am hesitant as if there is an issue with the motor/clutch/etc. then adding performance parts won't help...


BTW thanks all for your help!