04-06-2016, 11:56 AM
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#1
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Registered User
Join Date: Feb 2011
Location: Hermosa Beach, CA
Posts: 13
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03 Boxster S...what is this sound ???
Take a listen to this video and let me know if you've had this problem or what you think it may be. Thanks : )
https://youtu.be/c8v8lsIujVc
So here is what happened: - I heard this noise with no other symptoms, I thought, coming from the tank, no brainer, its the pump. Replaced the pump...easy. Did not solve the problem.
- Still no other symptoms other than the noise Then I did some more research and found the comments about the Fuel Tank Vent Valve on Filler Neck, (aka Bleeder Valve), I changed that. Did not fix the noise, AND I was able to fill the tank once but last time I tried to fill the tank it wont accept the fuel.
- So now Im looking for help. Any help is appreciated.
Thanks. : )
__________________
Pete
2003 Boxster S
1968 Camaro
http://www.cardomain.com/ride/2543196/2003-porsche-boxster
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04-06-2016, 01:19 PM
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#2
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Registered User
Join Date: May 2014
Location: S.California
Posts: 2,029
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Inspect the fuel cap seal very closely - cracked?
Use an "Engine Ear" to pinpoint the exact source of the sound.
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04-07-2016, 04:34 PM
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#3
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Registered User
Join Date: Feb 2011
Location: Hermosa Beach, CA
Posts: 13
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Thanks, cap is OK. Sound is coming from the hole near the gas cap, you can see in the video the sound stops when I put my finger over it.
__________________
Pete
2003 Boxster S
1968 Camaro
http://www.cardomain.com/ride/2543196/2003-porsche-boxster
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04-07-2016, 04:48 PM
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#4
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Registered User
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,515
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This noise comes from a bad bleed valve (number 13 on the chart).
Part number from 98 on is 996 201 143 01
Regards, Markus
Last edited by Smallblock454; 04-07-2016 at 04:59 PM.
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04-08-2016, 10:00 AM
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#5
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Registered User
Join Date: Feb 2011
Location: Hermosa Beach, CA
Posts: 13
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Danke Markus, but I have already changed that part. Any other ideas?
__________________
Pete
2003 Boxster S
1968 Camaro
http://www.cardomain.com/ride/2543196/2003-porsche-boxster
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05-09-2016, 11:37 AM
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#6
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Registered User
Join Date: Feb 2011
Location: Hermosa Beach, CA
Posts: 13
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Well looks like Im off to the independent shop. Damn, in 10 years of having the car other than the clutch this is the only thing I could not do myself. : (
__________________
Pete
2003 Boxster S
1968 Camaro
http://www.cardomain.com/ride/2543196/2003-porsche-boxster
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05-09-2016, 12:12 PM
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#7
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Registered User
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,515
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Hello Pete,
sorry, hadn't seen your last post.
If you open the fuel tank cap while the engine is running, does the noise go away?
Regards, Markus
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05-31-2016, 09:59 AM
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#8
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Registered User
Join Date: Feb 2011
Location: Hermosa Beach, CA
Posts: 13
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Thanks everyone for the comments.
I saw on another post there is a sensor that can easily fall out when changing the Fuel Tank Vent Valve, I took it all apart again and correctly installed the sensor that sits in between the fuel tank vent valve on the filler neck. With the sensor back in the right place all is well, the noise is gone and I can fill with gas again. : )
__________________
Pete
2003 Boxster S
1968 Camaro
http://www.cardomain.com/ride/2543196/2003-porsche-boxster
Last edited by Pete03; 05-31-2016 at 10:02 AM.
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05-31-2016, 10:47 AM
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#9
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Another Festivus MIRACLE!
Glad it worked out.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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05-31-2016, 12:33 PM
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#10
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Registered User
Join Date: Sep 2013
Location: Chandler, AZ
Posts: 1,796
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Fantastic that you were able to determine the issue and fix it yourself.
__________________
03 Carrera
02 Boxster S Guards Red, black interior with matching hardtop
89 Carrera 4
89 944 S2
78 911SC
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