All Things Mk5 > How to Guides / Troubleshooting

Screeching noise

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r5gtt:
Nice one Mitch  :happy2:

That sounds like a vacuum leak?. anyone second this?.

Mitch1980:
Gearbox bearing ?

doylebros:
Sounds like a failing PCV to me.

doylebros:
Have a read and play the video at the end http://shopdap.com/2-0t-fsi-pcv-valve-failure-how-it-sounds-and-more/

FoleE:
My car used to screech/squeal briefly on deceleration or occasionally when it was idling. Replaced the PCV as mentioned above and it cured the problem  :happy2:

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