Strange sound while running - any ideas???

stormparty · Post by **stormparty** » 12 Mar 2022, 17:48

Hi,

Just completed an oil change on a seldom used 2001 v70. Car run great but just noticed a new sound coming from around the area just rear of the oil pan. Not sure it’s an exhaust leak but hoping to identify it before I embark on a 2k mile road trip. I attached a video (under @ 40mb) taken right after sunset that captures the sound - though I’m not sure if it uploaded correctly.

stormparty · Post by **stormparty** » 12 Mar 2022, 18:02

First time poster so haven’t mastered the art of attachments here. Let me try again.

Post by **jonesg** » 14 Mar 2022, 05:24

You can't expect us to download an unknown file from a first time poster.
Put it on youtube and link it here.

stormparty · Post by **stormparty** » 14 Mar 2022, 05:26

Yeah didn’t realize the file wouldn’t stream. Thanks for the suggestion, I’ll put it on YouTube and post the link.

stormparty · Post by **stormparty** » 14 Mar 2022, 05:41

YouTube Link to video:

Post by **abscate** » 14 Mar 2022, 06:00

Sounds very exhaust leaky. Give the gas a tap and see if the sound follows engine rpm, it might also get a bit quieter after you rev and then let the engine slow back down as the back pressure changes \................

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Post by **vtl** » 14 Mar 2022, 11:04

100% exhaust leak. Usually exhaust gasket, but something around downpipe can fail too: flex section, for example, or the downpipe-catback flange joint.