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screeching or whislting

  1. Alfa 147, 156 & GT
    Hi all, New Alfa owner here and unfortunately I'm going to start off with posting a problem.. I have a problem with my 156 V6 that I cannot work out... :cry: Its a screeching/whistling sound that starts to get loud at 3000rpm and conitues up. I have checked the intake piping for leaks, I...