main bearings dont create a high pitch noise, my car had the same situation off and on for a month until it was constant, it was the crank case vent valve, towards the back of the intake, round piece of black plastic __________________ ^being rebuilt^ until then: daily car: 96' Blue DASC'd ti with koni coilovers slowly progressing... weekend car: 85 1/2' 944 Porsche no a/c, p/s, gutted cat, loud as hell exhaust, loud as hell sound system |