sunbird89
12-03-2016, 03:43 PM
Hi,
Had my golf for 2 years now, has started making a screech noise at about 2700 revs, if i keep the engine there the noise will continue but if i accelerate through the revs the screech will sound but will stop once past 3k revs.
It only does it once the engine is hot. I changed the N75 valve on the supercharger, because some other theads said it helped the problem but nope still howling.
One garage suggested the turbo impeller is hitting the sides. But why would it do it just when hot.
And the turbo still supplys the boost so i dont think its the turbo.
Any advise ?
Had my golf for 2 years now, has started making a screech noise at about 2700 revs, if i keep the engine there the noise will continue but if i accelerate through the revs the screech will sound but will stop once past 3k revs.
It only does it once the engine is hot. I changed the N75 valve on the supercharger, because some other theads said it helped the problem but nope still howling.
One garage suggested the turbo impeller is hitting the sides. But why would it do it just when hot.
And the turbo still supplys the boost so i dont think its the turbo.
Any advise ?