T2

Opps my bad - the noise should be from the RHS of the engine bay if it is the hydraulic reservoir issue - I cannot say I notice it at cold or warmed up conditions more of when the engine idles down at 1-2k RPM's and it always goes away when the clutch is depressed.

Stockholm996TT

Quicksilver,

did you solve your noise problem? I have exactly the same sound between 1k-2k RPM. I was hoping that you might have found the solution by now.

Quicksilver01

So many people told me that the sound is normal that I just stopped listening for it. The car is at the dealer now for it's 30k service. My CPO is up in November and I'm sure that if something really is wrong, it will surface the day after it expires. Until then, I'm going to crank up my Fabspeed and ignor the rattle.

Stockholm996TT

OK. But, do these people say that the sound comes with the car from the factory, or is it something that happens after a while?

JasonAndreas

Can you record the sound and post it as an .mp3 file?

Quicksilver01

The dealer told me it was the intermediate shaft chain and that it is a common noise in 996TT's. One of the techs told me that lots of cars come that way. Who knows. They told me that a guy came in with his GT2 and the noise was much louder than mine. The service manager claimed not to hear anything at all and told me to drive the car and enjoy it. Like I said, the day after the CPO ends, I'll find out what it really is. Sounds like a bearing.

Kevin

On previous air cooled 911 engines the belt driven fan generated alot of noise that masked the chain and intermediate shaft noise.. It is VERY common, most 996TT engine make this noise.

Jon Elliott

Kevin and Doc are right, this is there from the factory.

If the current noise bugs you, I recommend NEVER getting a Light Weight Fly Wheel. Once the tranny fluid heats up you would think that someone left a couple extra 4-5 nuts and bolts in the case. I personally like it because I know it should be there and I'm not looking to drive a Lexus.

As to the sqealing sound when the car was cold, this is the drive belt. It is doing it for one of the following reasons 1) it is worn and will get worse until it is replaced or 2) the belt got wet from water draining off of the deck lid ( this happens a lot when you wash the car and get a good deal of water down the venting on the deck lid). Once the belt dries and the car warms up, it will stop.

As to the dealer not talking to you, to address your very real concerns, that is BS.

cgeorgan

Hi-

I had the EXACT same issue last year - at very low throttle settings, and for the most part in 1st gear only (though I heard it in 2nd occasionally), I would hear the most faint rattling sound - like a ball bearing, somewhere in the rear of my car.

You cannot hear it at idle, and you cannot hear it past 1-2k RPM. However, once you hear it, you can't NOT hear it.

I took it to the Porsche dealer in Ann Arbor, MI who gave me the party line - "ya, they did hear it, but nothing abnomal, everybody gets rattles here and there, etc." Sent me on my way.

However, I then took it to my home dealer in Greenwich, CT...the guys never told me what was wrong with it, but they completely replaced the exhaust, at no cost.

My car had about 30k miles on it at the time, an '02 TT that was CPO'd.

Again, never did find out what the problem was, but like I said - I came away with a new exhaust.

Good luck!

Jon Elliott

Kinda sounds like you had a loose baffle. I had one of those but a Europipe cured it....

Oak

loose muffler bearings.

rocketrider2

Might be low on blinker fluid to Oak.

1AS

What about the casaphrator or the nobenlock? AS

phxturbo

I had the same noise coming from my 996TT, just found out it a bad valve on the hydraulic reservoir, they say I need to replace the whole unit?? part alone is $805.00!! Anybody have any other solutions or coments on the cost to fix?
Chris

cpu77

Chris is it there at startup? Does it get louder as it warms up?