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Does anyone recognise this hissing or air sound?

mattw1992

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Had this for a while now, sound like an air leak coming from somewhere. Have done a quick check on all the hoses and everything and can't come up with anything, its an obvious air leak coming from somewhere, car is a VT v6ecotec

There are no symptoms associated with this other than the noise, idle is perfect (in fact surprisingly good) no lack or power.

let me know what you come up with, in the video you will hear the engine running then i turn the engine off and you can hear the noise for a few more seconds.

[video]https://youtu.be/ZBixbZnX0Ec[/video]
 
D

devilly

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i'll be getting my wording wrong as always but will try.sounds like pre ignition.my suggest would be.

get some injector cleaner add to fuel tank.for the tapping noise,and also get some hydraulic lifter free stuff to add to oil.

sounds like one of the injectors or more is over spraying into the combustion camber due to a blockage.
 

billythakid

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Check the brake booster one way valve (greyish one ) and hose
 
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