Hey guys
My car has started to have an engine wine, ive got a few idea of what it mite be but thort someone may have had it before,, its a V5 sti, if i give it a bit of stick and at full boost and high rpm ie 5000+ then butten off the engine has a loud wine to it, is engine not drivetrain, is directly related to engine rpm as in wine pitch changes with revs, i thort it may have been my turbo on the way out but seems too change with revs too much for that,, was woundering if it could be a cambelt idler or something, does cambelt come under more load with high boost as valve are harder to open? its not a knocking noise so dont realy think its a crank bearing unless someone has heard of one wining before,
The wine goes away again after abot 5mins of normal driving
If anyone has anyideas it would be a big help
Thanks