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Registered
Join Date: Jul 2005
Location: Seattle
Posts: 5,824
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New noise. Whirrrrr hummmmmmmmmm
New noise appeared today that I've never heard before. I noticed it after Autocross.
Coming front the front, near the fuel tank. A loud hum with a slight, slow oscillation. Does not seem to be affected by engine speed. Definately from the front, and it sounds like it's from the right side...perhaps under the right front fender? Only happens when car is running. At first, I thought it was the A/C as there is a similar noise when the A/C is running....bu then I noticed the A/C was not running.... No heater on, no A/C running.... I don't know where the fuel pump is, but that's my first thoughts... If it is....I did NOT notice any acceleration or stumbling issues. Any ideas? I might have captured this sound on the in-car camera....I'll check and post a clip if so.... edit Well, after eading quie a bit, I'm convinced it's the fuel pump. Blast it. Finally new shocks and alignment, and the pump wants to poop itself.  Oh well. The new shocks and alignment made a HUGE improvement on handling at Autocross today. 
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'85 911. White - 53,000 miles bought 3-16-07. "Casper" '88 924S. Blue - 120k miles bought with 105k miles. '94 968 Coupe - White - 108,000 miles bought 9-28-17 '09 Cayman - Grey - bought 9-8-20 Last edited by WolfeMacleod; 04-12-2008 at 06:39 PM.. |
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04-12-2008, 05:33 PM
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Registered
Join Date: Feb 2002
Location: Maple Ridge, BC, Canada
Posts: 984
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Wolfe, the pump can get quite noisy before it has to be replaced.
Try cleaning the strainer at the bottom of the fuel tank before you do anything else. The mesh is really fine, and after many years it gets varnished and partially clogged, causing the pump to cavitate.
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Al Shkuratoff 86 Carrera, SW chip, Fabspeed, M&K 83SC Platinum - Sold 83SC Slate Grey - Sold |
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04-12-2008, 07:18 PM
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MEMBER # 930
Join Date: Dec 2007
Location: Olympia Wa
Posts: 347
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My fuel pump was making noise so I replaced it and new one makes noise also buzzing sound . yours may be ok . Hope you had lots of fun today ,we had other obligations today and missed out on all the fun at bremerton , will hope to see you next month
Wayne/Kelly |
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04-12-2008, 07:51 PM
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Registered
Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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The audio warning signal is a plus, no?
You could have been stranded high and dry in the hinterlands. Instead, you'll be stranded at home. That's relatively better. There's no place like home. Sherwood |
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04-12-2008, 08:17 PM
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Registered
Join Date: Jul 2005
Location: Seattle
Posts: 5,824
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Quote:
The Audio warning is nice, yes!
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'85 911. White - 53,000 miles bought 3-16-07. "Casper" '88 924S. Blue - 120k miles bought with 105k miles. '94 968 Coupe - White - 108,000 miles bought 9-28-17 '09 Cayman - Grey - bought 9-8-20 Last edited by WolfeMacleod; 04-12-2008 at 08:31 PM.. |
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04-12-2008, 08:24 PM
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