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Name that tune! Well, name that nasty engine noise...

pothole

By pothole
in 986 Series (Boxster, Boxster S)

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pothole Member

pothole

Posted
Posted (edited)

My 2.5L manual Box has developed a nasty squeaking noise that appears to be coming from the drive belt / one of the pulleys or components on the drive belt. I've attached a short sound clip in a zip file (the forum would not allow me to attach the .mp4 file unzipped for whatever reason) recorded with the car running in 4th at low revs to keep the engine noise down and make the sound clearer. The sound is recorded with the cabin engine cover removed and the engine and drive belt exposed. It does make the noise when blipping the throttle with the car in neutral, but you get a lot of engine noise doing that, hence the on-the-move run with the car in 4th.

Engine otherwise appears to be running normally and producing good power.

Diagnosis, anyone?

20101105 184939.mp3

Edited by Loren
made audio common format
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pk2 Member

pk2

Posted
Posted

Might try taking the belt off and spinning all the pullys by hand. If that dosn't tell you anything, put a socket extension on a fast electric drill and withe the right size socket for each component on the belt and wind it up..

I think your prob is a seized bearing on the pulley circuit causing the belt to screech. You can also look for "skid markes on the pulleys. Could also be a really winy bearing (electric drill thing should tell you that.

Don't drive to far from home anymore.

PK

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pk2 Member

pk2

Posted
Posted

Yeah, I'm basically not driving it. I will have to drive it about 10 miles to my local shop on Tuesday, but that's the only driving I'll be doing.

IF you drive at really low RPM's you might make it. If the screech stops, best not roll on, no water pump (among others less critical things.

PK

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  • 1 year later...

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