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Engine Whining
I have a 2000 Boxster with about 78,000 miles on it. Recently I have had an engine whine that is puzzling me.
The whining starts a bit quiet, then it tends to get a louder. It is loudest when in traffic and stopped at idle. When I accelerate and increase the RPM, it changes pitch and gets a bit quieter. Odd thing about it is, after about 10-15 minute, it just stops. There are no issues with heat, performance and no warning lights. I am going to replace the drive belt which will give me an opportunity to inspect the pulleys, but was wondering if anyone had a clue what to look for. No use taking it to the shop as it would be silent by the time I got there and I try to do all my maintenance myself anyway. Any input will be appreciated |
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11-02-2017, 08:21 AM
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Registered
Join Date: Jan 2004
Location: Pittsford, NY
Posts: 3,704
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Check your spark plug tightness. A loose plug makes a similar sound. Search that.
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11-02-2017, 01:57 PM
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Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,573
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Could it be a secondary air pump?
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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11-03-2017, 11:13 AM
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Join Date: Jul 2017
Posts: 217
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Could be the power steering pump. The noise goes away after the pump warms up, fluid expands, and gets thinner. If it's whining, does it change pitch if you turn the steering wheel?
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Brian Lamberts Tucson AZ Last edited by Brian in Tucson; 11-06-2017 at 09:17 AM.. |
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11-06-2017, 09:15 AM
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Join Date: Nov 2009
Posts: 181
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Belt or tensioner? Seems like there's a bunch of things that it could be.
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11-07-2017, 03:22 PM
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