My new (to me) 2019 F-250 was just in the dealer for service and the recall 20E07 PCM reprogramming was completed. Ever since the engine seems to be roaring, like you might get with on/off fan clutch operation, but it happens even on cold starts. Seems like my mpg's have fallen off as well. Anyone else experience this? Did not turn up much on a search. Added on edit; the noise increases with RPM, just checked it on a cold start.