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portreathbeach
Trainee


Joined: 09 Aug 2015
Posts: 62



PostPosted: Thu Oct 24, 2019 8:35 pm    Post subject: Annoying chirp noise Reply with quote

My 2004 Carrera S which I’ve owned for a couple of months has this annoying chirp noise when going over rough roads. It seems to be coming from the rear of the car behind the driver. It’s hard to describe the noise, it’s a squeaky chirp noise like two pieces of metal rubbing.

The strange thing is, it’s been doing it for a while, but last night after parking the car for a couple of hours, when I got back in to drive home it hardly made a sound!!! Tonight I drove the car and it also didn’t make anywhere near as much noise as previous.

The sound sounds like it coming from inside the car, but could it possibly be some engine or gearbox mount that is making the noise and maybe because it’s raining today, the mount is somehow ‘lubricated’ slightly and not squeaking as much?

It’s more annoying that the sound isn’t constant as it’s gunna make it very hard to find.

Any ideas?
 
  
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DJones
Hockenheim


Joined: 01 May 2011
Posts: 673
Location: Hampshire


PostPosted: Thu Oct 24, 2019 8:44 pm    Post subject: Reply with quote

I’ve got exactly what you describe but in a 996. Goes away completely in the rain and damp conditions. Managed to fix it once, didn’t happen again for almost two years!

Can’t remember how and it’s back again! I think it’s something to do with the rear quarter glass and how it’s fitted.

Best of luck.

Darren.
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portreathbeach
Trainee


Joined: 09 Aug 2015
Posts: 62



PostPosted: Thu Oct 24, 2019 9:14 pm    Post subject: Reply with quote

I was thinking it could be the glass after reading another internet post about it. But the other night when the chirping was happening, I put my hand back to hold the glass and it didn’t seem to make a difference.

But you could be right. Maybe when the glass and rubbers are wet it doesn’t squeak as much.

I’ll see if the noise comes back on a dry day.
 
  
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DJones
Hockenheim


Joined: 01 May 2011
Posts: 673
Location: Hampshire


PostPosted: Thu Oct 24, 2019 9:23 pm    Post subject: Reply with quote

Mine definitely goes when it’s wet.. From memory I think I pushed the plastic pipe on a can of WD40 under the rub and gave it a squirt.. have to have another look again at some point as it is properly annoying!
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portreathbeach
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Joined: 09 Aug 2015
Posts: 62



PostPosted: Fri Oct 25, 2019 6:17 pm    Post subject: Reply with quote

Well, today I did a 120 mile round trip to get the car serviced. It was raining the whole time. Not a single chirp was heard. So I would say that whatever is making the noise only does it when the car is dry. And after talking to the mechanic that serviced the car, it doesn't sound like it could be related to bushes of mounts on the underside. He said it was an excellent example of a 2004 911 S. All of the underside stuff on the car is in excellent condition, all the mounts, bushes, suspension etc.

So, as well as maybe knowing where the annoying chirp is coming from, I now also know I have a solid car. Smile
 
  
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DJones
Hockenheim


Joined: 01 May 2011
Posts: 673
Location: Hampshire


PostPosted: Fri Oct 25, 2019 6:53 pm    Post subject: Reply with quote

Good stuff, sounds like we have exactly the same chirp.... I know mine isn’t suspension either as it’s all new and it did it prior to changing it...

Darren.
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7573
Location: Brighton


PostPosted: Fri Oct 25, 2019 7:18 pm    Post subject: Reply with quote

Door seal rubber can make a similar noise ..

Get some Rain X .. wet a cloth with it .. wipe it over the window where it will touch the door aperture seal .. do the same on the door seal and leave to dry.

Old door rubbers go hard and can stick on the glass .. this can cause noises as it vibrates .. worth a try anyways if only to eliminate it .
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DJones
Hockenheim


Joined: 01 May 2011
Posts: 673
Location: Hampshire


PostPosted: Fri Oct 25, 2019 7:21 pm    Post subject: Reply with quote

deMort wrote:
Door seal rubber can make a similar noise ..

Get some Rain X .. wet a cloth with it .. wipe it over the window where it will touch the door aperture seal .. do the same on the door seal and leave to dry.

Old door rubbers go hard and can stick on the glass .. this can cause noises as it vibrates .. worth a try anyways if only to eliminate it .


Thanks for your help. The fact it goes when it’s wet would point towards lubrication to something..

Will give it a try.

Many thanks

Darren.
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2006 Ford GT40 Gulf Racing colours
1994 AC Cobra 427 Guardsman blue
 
  
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portreathbeach
Trainee


Joined: 09 Aug 2015
Posts: 62



PostPosted: Sun Oct 27, 2019 1:26 pm    Post subject: The chirp may be sorted Reply with quote

OK, it was dry today and that annoying chirp could be heard over every bump.

I got some WD40 and a credit card. I gently put the card between the window and the rubber and squirted a bit of WD40 in. I did this all along the bottom of the window and then squirted some up around the top of the window (without the card).

After another test drive, the chirp has nearly gone. Only did it very very occasionally.
 
  
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DJones
Hockenheim


Joined: 01 May 2011
Posts: 673
Location: Hampshire


PostPosted: Sun Oct 27, 2019 4:51 pm    Post subject: Reply with quote

I think that’s the cure. I remembered doing the same so I did it again last night, not had time to try it but I do think what you have done is what cured mine.

I’ll let you know when I drive it again.

Darren.
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2017 Ferrari 488 GTB Nero black
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1994 AC Cobra 427 Guardsman blue
 
  
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