[BillinPhilly]

[color=rgb(0,0,0)]I noticed that when I first start out driving in the morning or on any cold start, I hear a chirping. The sound is not coming from the engine. T
[/color][color=rgb(0,0,0)]he recording I attached is from the rear drivers side as I was parked.
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Already has this to a local German specialist garage and they told me the noise was gone. Here is what was on the work order.

 

Diagnose and Evaluate Condition. Noise is coming from the transmission area. Topped up trans fluid as it was a bit low. Checked the tightening torque of torque tube flange and torque converter bolts, all ok. Lubricated transmission and torque tube mounts. Noise has not returned


Park inside over night and next morning, no noise heard. Return to owner for additional follow up.

 

However, after driving away, the chirp is there and clear as day. That's 125 dollars I won't see again.


https://drive.google.com/open?id=0B7r9cy...XhQY2RQS3M

 

I posted the audio here as I was unable to upload it here.

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[Bulti]

Yuk sounds ugly.


The fuel pump is located there but I seriously doubt if it could produce a noise like that.


Does the pitch change when you rev the engine or start driving?

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[94SilverCab]

Rear wheel bearings?

 

Jay

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[robbgerard]

Am I missing something? Can't figure out how to listen to the audio...

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[Bulti]

The link is gone.

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[BillinPhilly]

I guess they didn't like my rennlist link to the audio. The sound is constant either parked or driving. Doesn't increase in pitch either way. I'll try and upload the audio somewhere and link it so it can be heard.

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[Bulti]

If it would be a bearing which speeds up when accelerating it should change pitch. That is, if my reasoning is correct. Maybe you should get under the car and try to pinpoint the exact location.

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[94SilverCab]

Sounds like a muffler bearing  :ninja:

 

Jay

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[BillinPhilly]

If it would be a bearing which speeds up when accelerating it should change pitch. That is, if my reasoning is correct. Maybe you should get under the car and try to pinpoint the exact location.

 

I plan on spending some time this weekend doing just that.

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[Ryan]

I am with Jay on the muffler bearing or maybe low muffler bearing fluid.

 

No really...the sound is the same when the car is parked? This makes no sense. 

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[94SilverCab]

http://www.provostmotorsports.com/

 

Call Max...

 

Jay

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[BillinPhilly]

I am with Jay on the muffler bearing or maybe low muffler bearing fluid.

 

No really...the sound is the same when the car is parked? This makes no sense. 

 

I can tell you this, as I drive I can hear it faintly (given street and engine noise but it is there). If I am stopped at a light, it is the same tempo and pitch as the audio recording (which is when I was in park.)

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[BillinPhilly]

http://www.provostmotorsports.com/

 

Call Max...

 

Jay

 

Thanks Jay!

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[MCL968]

Does it chirp with the clutch engaged and the trans in gear? If yes, look at the exhaust hangers and flanges.  I would also take a look at your motor mounts. If the engine drops a bit, there are a few places that could make contact and "chirp". Otherwise, the muffler bearings could be the problem.

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[williamoss]

I have been having a rattle noise whenever I rev up the engine. MY mechanic has found a heat shied up in the area of the engine. They are trying to figure out a way to weld the shield as it seems to be in a weld position. I am going to go there tomorrow if I get there I will try to take a picture of the shield. Perhaps that is the noise?

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[az968]

D1R sells a nice heat sield for over the exhaust if yours is damaed.

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[94SilverCab]

D1R sells a nice heat sield for over the exhaust if yours is damaed.

Different heat shield, and William, I had the same problem. The noise was hear in the passenger well.

 

Jay

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[BillinPhilly]

Here is the latest. For right now I am just going to deal with the noise until I can get some funds together to do what most likely will need to be done going forward. Here is the email from the porsche mechanic.

<b>"We heard the noise last night and today. It was actually about a quart still low on fluid. Adjusting the fluid level did not change the noise. The noise can clearly be heard coming from the front of the transmission with a stethoscope. The only thing is we can't determine if it is the bearing at the torque converter carrier or if it is the pump in the front of the transmission. 


The labor to pull the trans in and out is around $630 and if we have to open up the trans it would be more. If we drop the transmission we could put our hands on the torque converter carrier and see how it feels. Before condemning anything inside the transmission.


One way to approach it without going to the expense and for more investigative work would be to perform a true AT service. Drain the fluid, remove the pan and replace the AT filter. If we perform a service and see large amounts of metal in the transmission then that could be a game changer or it could dictate that the transmission would have to come out and be taken apart anyway at some point.


The transmission appeared to operate normally and the good news is it didn't make any grinding noises while driving."</b>

They want $400 to do the AT service. That's why I am passing at this time.

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[unknown4u]

The damperplate is not shot?

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