High Pitch tea kettle sound while driving

[orthotist]

I have a 06 CTT and I noticed that I hear a high pitch tea kettle sound while driving. It starts around 50mph and up but seams to stop once brakes are appalled. It sounds like it comes from inside the cabin around the middle area (hard to tell). I placed it in neutral while driving and no change, so I'm not thinking drive line area. Doesn't change pitch when I rev the engine and only seems to start once the engine is warm or car itself is warm. Any ideas what it could be?

I did replace only the front brake pads last weekend, fyi.

[bigbuzuki]

If I drive with my windows closed, sunroof tilted open, and fan off, I will get the whistling sound in the cabin.

To eliminate the whistle in this cabin configuration, I turn on the fan to one notch and it immediately stops.

[orthotist]

I took a video of the sound but either it's too big to upload or I don't know how to do it.

FYI, the blower fan has already been replace a while back. It only has 59,000 miles on it.The sounds happens with blower motor on or off though.

Edited November 18, 2013 by orthotist

[orthotist]

It sounds like it is coming from under the console area. It's fainter at slower speeds like (5mph) and gets very high pitched around 30-50mph. Are there any mechanisms under the shifter area that could cause such a sound or other fans motors in that area. It also sounds like a chirpish tea kettle.

[bigbuzuki]

If its coming from the centre console it could be the cardan shaft bearing carrier starting to chirp.

[orthotist]

When There is less load through the throttle it is slightly louder and under deceleration.

[orthotist]

I hear it the loudest and clearest at the very back part of the armrest section going straight down from there. It just seems to me that the wine / squeal should vary in pitch with the driveshaft if it was the bearing. The sounds stays fairly constant. Can I send you the video I recorded via email?

[orthotist]

Well, I check the bearing this morning. Everything seems and looks fine. So, it's not driveshaft bearing (at least for now). I'm still searching for the squeal?

[orthotist]

Finally found a way to get the video uploaded. Maybe this will shed some new light.

[orthotist]

Can anyone help? Maybe some other ideas?

[Black pepper]

I have a 06 s and just watched your video after searching for ages, I have the exact same noise and it driving me mad! Not there all the time though and completely stops when the car is not moving. Did you find out what it was?? Please let me know. Thanks.

[liam_b]

I had this exact type squeaking/whistling noise on an old SAAB 9000, it turned out the aircon air temp sensor had a tiny fan and its bearings were dry, maybe you can check by sliding a small thin cable tie in through the slot in front of the air temp sensor to try and stop the fan, if the noise stops voilá

[wvicary]

It's the brng on the carden shaft.

Edited May 27, 2014 by wvicary

[bigbuzuki]

As mentioned previously, If the noise stops when your stationary it's sure looking like the cardan shaft bearing failing.

[orthotist]

I have a 06 s and just watched your video after searching for ages, I have the exact same noise and it driving me mad! Not there all the time though and completely stops when the car is not moving. Did you find out what it was?? Please let me know. Thanks

I have not yet! i do know it happens after 10-20 mins. of warming up. Greater the sound when the temp. is warmer outside.

[orthotist]

So, the wife came home and said " you have got to do something about that noise". We test drove it again and I crawled around inside the cab of the pig while she drove. I had my ear on the console handle and it seem to resonate quit loud from that area and at the end towards the back seat area.

When I got home, I bumped the air system to max height and went under with my WD40 white lithium grease, a mirror, a head light and started spraying the crap out of the Cardon Shaft Bearing, on both sides. The straw fit right down into the lip of the bearing along the shaft. The rubber around the shaft is all intact and no problems with that.

Went for a test ride and sure enough! SOUND IS GONE!

60,000 miles--what a sh-ty design. I will spray as needed now until I want to spend the cash on the aftermarket DIY kit.

Hope this helps somone else and thanks for all the ideas.

[Black pepper]

Thank you for posting this orthotist, it has helped me a lot, annoying sound has now gone!!!

[hahnmgh63]

Keep in mind you are at the point that the rubber support in the center bearing will fail. Probably a temporary fix so keep an eye on it as the Bearing itself rarely fails.

[orthotist]

Thank you for posting this orthotist, it has helped me a lot, annoying sound has now gone!!!

No problem but hahnmgh63 was right. It lasted for a few weeks the then the rubber broke apart. Thump thump thump under load and I'm sure you know what I had to do next. I ended up doing that DIY aftermarket kit $425 and that fixed everything but that sound sure was annoying. What a piece of crap part on Porsche's part though. I just repacked the bearing with grease as the directions stated. The bearing was fine itself. The Guibo disk was the hardest due to a little rust on the bushings.

Edited July 12, 2014 by orthotist

[bigbuzuki]

Cardan shaft bearing issue was mentioned way back in November post #5.

[Novito]

Thank you Orthotist, is your problem resolved? I have a similar noise to your video. But mine will stop for a week or so then come back. It only makes the noise over 40mph. when coasting down hill it will go away. Porsche dealer said that the cardan shaft is more of a thump sound. I think it may be the fan??? Thoughts please….

 

I drive a 2004 Cayenne S, bought it new. Now with 175,000 miles. It's been a rock star and the best vehicle I have ever owned. 

[orthotist]

Thank you Orthotist, is your problem resolved? I have a similar noise to your video. But mine will stop for a week or so then come back. It only makes the noise over 40mph. when coasting down hill it will go away. Porsche dealer said that the cardan shaft is more of a thump sound. I think it may be the fan??? Thoughts please….

 

I drive a 2004 Cayenne S, bought it new. Now with 175,000 miles. It's been a rock star and the best vehicle I have ever owned. 

I did solve my problem with the aftermarket cardon shaft bearing kit in the end. It's too expensive just to start replacing random parts on a Porsche so I would make sure you know for sure what it is before doing so. Well, at least if you live on a normal budget anyways.