Vibration/grating noise under acceleration - Alfa Romeo Forum
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Vibration/grating noise under acceleration

Hi all,

Had this quiet noise occaionally under acceleration which last a couple of seconds then goes sounds like a high frequency vibration noise.... hard to explain but its like the noise you would get sticking an object into a fan when its going round, bit like a missed gear but not as low frequency i suppose....

Its getting louder and sometimes happens twice as i accelrate up to 4k rpm lasts a second or so then comes in again further up the range

Any ideas.....
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acceleration , noise , vibration or grating

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