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Join Date: Nov 2017
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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
Old 11-02-2017, 08:21 AM
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Check your spark plug tightness. A loose plug makes a similar sound. Search that.
Old 11-02-2017, 01:57 PM
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Could it be a secondary air pump?
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Porsche 2005 GT3, 2006 997S
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Old 11-03-2017, 11:13 AM
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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..
Old 11-06-2017, 09:15 AM
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Belt or tensioner? Seems like there's a bunch of things that it could be.
Old 11-07-2017, 03:22 PM
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