05 F350, 6.0 Turbo Farts
Stock except for injen cold air intake.
Started with intermittent turbo fart; to infrequent to determine when it occurrs.
Then in January it occurred more frequent; decel when shifting gears.
After two weeks, blew off hot side blew hose at intercooler at 20 boost. Reinstalled and blew off again; replaced hose, tested up through 30 boost; ok
Now it occurrs more random, decel and acel; cold and hot.
Read many forums providing number directions. It there an inexpensive method to troobleshoot this problem.