So I've just started my Turbocharged '04 cavalier back up after some winter mods. After the car runs for a couple minutes, it develops a pulsating, whining sound that seems to be from crankcase pressure. I've researched and triple checked to make sure my pcv and wastegate systems are all set up properly, and I've run out of ideas as to what could be causing this to happen.... Has anyone who had turbo'd an L61 experienced something similar?


Turbocharged '04 Cavalier

How do you know its from crankcase pressure?

Simple PCV setup. Nipple on valve cover to catch can to nipple on turbo intake.