[Bmiller17]

I'm not sure if the turbo isn't spooling but when the car is revved or under load you can hear air moving but the turbo doesn't seem to spool. I've looked for leaks ( visually, not with smoke or a leak test) but my friends say it sounds like the turbo isn't moving at all. Anyone dealt with this before?


Also, car has bone stock 2017 m240i 8AT

[R_don_abon]

Are you sure you checked all your charge pipes between the turbo to the throttle body to make sure something didn't break/disconnect?

[Bmiller17]

Originally Posted by R_don_abon

Are you sure you checked all your charge pipes between the turbo to the throttle body to make sure something didn't break/disconnect?

I'm pretty sure it's the pcv. I have a friend who was a bmw tech and he said it sounds like the pcv. It'll drive fine for a bit then start sounding like it has a supercharger. I have a garbage video of it but it's hard to hear