Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

LinkBack Thread Tools Display Modes
Old 09-01-2016, 04:53 PM   #1
Registered User
Giller's Avatar
Join Date: Jul 2014
Location: Listowel, Ontario, Canada
Posts: 1,120
Boxster Whine

Hey guys....my Box has always had a very slight whine to it - but lately that has grown and gotten loud, at times. Don't notice it at idle - but as soon as you feed some gas, it shows up loud and proud. Power steering maybe? I can't quite figure where the sound is coming from.
The sound is very similar to the youtube video below - but more pronounced as you press the accelerator, either stationary or moving.

2011 Boxster PDK 2.9L
2011 Boxster 987.2 Arctic silver / Black leather, PDK with Sports Chrono Package Plus
Giller is offline   Reply With Quote
Old 09-01-2016, 06:11 PM   #2
Registered User
BirdDog's Avatar
Join Date: Oct 2013
Location: Atlanta, GA
Posts: 417
If it varies with RPM, maybe your accessory belt?
2001 Boxster S - Speed Yellow, Black Leather, Tiptronic, Jake Raby rebuilt 3.2 with IMS Solution
BirdDog is offline   Reply With Quote
Old 09-01-2016, 06:47 PM   #3
Registered User
Join Date: May 2014
Location: S.California
Posts: 2,011
or idler bearings
Remove the serp belt and run it briefly to listen.If no noise check each idler+tensioner bearing and alternator .
Pelican has a good diy on this
Gelbster is offline   Reply With Quote
Old 09-02-2016, 12:03 AM   #4
Registered User
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,322
Hello Giller,

the noise you hear in the video directly after startup is the SAI. But that doesn't change frequency if you hit the gas pedal.

As Gelbster said, remove the panel behind the seats and start the engine (2011 987 II has this also). Maybe you can locate the noise immediately. If not, remove the v-rib belt and check every component.

Also you can run the engine for a short time without v-rib belt just to check if the noise is gone with no v-rib belt. So it will be caused by something else.

The noise can also be caused by the v-rib belt itself. So check it for wearing signs. If it is weared, replace it. You can also clean the belt and components. The v-rib belt and all belt pulleys have to be clean. Don't use any oils like WD40. Everything has to be oil free.

Regards, Markus

Last edited by Smallblock454; 09-02-2016 at 01:49 AM.
Smallblock454 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 11:36 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page