2004 GTP whistling noise. Now with video

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haro1225
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2004 GTP whistling noise. Now with video

Post by haro1225 »

There is a whistling noise that I can't pinpoint on my car. It happened a lot during the winter but it seemed to go away after a car wash. It hasn't done it in a while but it's back, only while the engine is running. It can be heard inside and outside the car and does not change with speed or RPMs. I have taken the access cover for the fuel pump off and it is not coming from there. It's starting to drive me crazy. I know I'm not crazy since Matt and his brother heard it too. Thoughts?
Last edited by haro1225 on Sun Apr 19, 2015 11:36 am, edited 1 time in total.
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2004 GTO....LS1, LSA supercharged 525whp, 6MT
96 SSEi...September 2010 COTM........GONE
04 GTP comp G.... December 2015 COTM........GONE
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nos4blood70
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Re: 2004 GTP whistling noise.

Post by nos4blood70 »

Can you localize it even slightly?
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Re: 2004 GTP whistling noise.

Post by haro1225 »

I checked around a bit more and it's on the left hand side and a bit louder underneath. I even tried to duplicate the conditions of the touchless carwash and sprayed the underside of the car and nothing changed. I did drive it a bit after work when I went to get dinner and it is intermittent now.
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-Ryan
2004 GTO....LS1, LSA supercharged 525whp, 6MT
96 SSEi...September 2010 COTM........GONE
04 GTP comp G.... December 2015 COTM........GONE
2013 Audi Allroad Quattro
yourgrandma wrote:Hi.
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Re: 2004 GTP whistling noise.

Post by RJolly87 »

Possibly an evap vacuum leak?
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Re: 2004 GTP whistling noise.

Post by haro1225 »

I was thinking that but now the noise has stopped, I'm sure it will be back and I'll poke around when it does and also get a video of it as well.
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-Ryan
2004 GTO....LS1, LSA supercharged 525whp, 6MT
96 SSEi...September 2010 COTM........GONE
04 GTP comp G.... December 2015 COTM........GONE
2013 Audi Allroad Quattro
yourgrandma wrote:Hi.
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Re: 2004 GTP whistling noise.

Post by CMNTMXR57 »

Does it happen only upon cold startup and last for about a minute or two?

If so, I'm leaning towards the electric motor for Seconday A.I.R. It's over in the left front corner.
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Re: 2004 GTP whistling noise.

Post by haro1225 »

When it happens it does it no matter what while the engine is running. Cold starts, warm starts, and even during long drives. I almost thought it was the speakers and then I disconnected all of them and no change.
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2004 GTO....LS1, LSA supercharged 525whp, 6MT
96 SSEi...September 2010 COTM........GONE
04 GTP comp G.... December 2015 COTM........GONE
2013 Audi Allroad Quattro
yourgrandma wrote:Hi.
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Re: 2004 GTP whistling noise. Now with video

Post by haro1225 »

I got a video of the noise.
http://youtu.be/Buh5d9lbRDg
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2004 GTO....LS1, LSA supercharged 525whp, 6MT
96 SSEi...September 2010 COTM........GONE
04 GTP comp G.... December 2015 COTM........GONE
2013 Audi Allroad Quattro
yourgrandma wrote:Hi.
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Re: 2004 GTP whistling noise. Now with video

Post by Backhoe »

I just came across a description of a similar whistling on a Monte, apparently there was a missing o-ring on the PCV.
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Re: 2004 GTP whistling noise. Now with video

Post by haro1225 »

I figured it out. This sounds really dumb but it was coming from the fuel lines near the filter. If they touched a certain way they made the noise. I pushed them away from each other and it stopped.
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-Ryan
2004 GTO....LS1, LSA supercharged 525whp, 6MT
96 SSEi...September 2010 COTM........GONE
04 GTP comp G.... December 2015 COTM........GONE
2013 Audi Allroad Quattro
yourgrandma wrote:Hi.
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