u/gvshook11

07 F250

Having some weird problems recently with the stock turbo. On startup I cannot hear the turbo whistle from the exhaust. My map and baro are identical, also just changed the ebp sensor. I noticed that when you start to drive after it warms up you hear almost like a screech and then you hear the turbo spooling. After that the truck acts normal until it cools down again. I have read about it possibly being a stuck unison ring but wouldn’t that cause it to happen all the time? My boost is reading anywhere from 5-12 psi on normal acceleration and 20-22 wot. Any thoughts?

I noticed earlier that after starting my truck and driving around the lot I could not hear the turbo spooling at all. My boost gauge read anywhere from -.55 to about 1 psi. Seemed abnormal and when I got the rpms up to 2000 or so I heard the turbo kick in. My 30 minute drive was fine, but after pulling on to my road and going about 10 mph I noticed that it was not spooling again. No codes came up, any thoughts?

I noticed earlier that after starting my truck and driving around the lot I could not hear the turbo spooling at all. My boost gauge read anywhere from -.55 to about 1 psi. Seemed abnormal and when I got the rpms up to 2000 or so I heard the turbo kick in. My 30 minute drive was fine, but after pulling on to my road and going about 10 mph I noticed that it was not spooling again. No codes came up, any thoughts?