Ok, I think I know where the disconnect is. You may be thinking of something other than turbo flutter, which occurs at high RPM when you rapidly close the throttle. Maybe you’re thinking of turbo lag?
This issue seems to have my dealership scratching their heads. Can’t figure it out
I was corrected and rightfully so on my use of the term Turbo Flutter. I did a deep dive into the term, cause and effect and it definitely is different from what I was trying to convey. In my case the flutter noise would be more accurately described as Turbo Rattle, or more specifically Waste Gate Rattle. Sort of sounds like a air compressor at low rpms. Ford has a Technical Service Bulliton on the issue on EcoBoost 3.5s and 2.0s. I'm not positive yet that is what I'm actually hearing but it gives me something to follow and figure out. Combined with delayed shifting into a lower gear I get the transmission shudder (lugging) feedback plus the audible feedback as well. It's easy to correct and is brought about by my very light foot on the peddle. I'm always doing the hyper mileing thing even in the city when traffic is light. Sorry if I misconstrued Turbo flutter with Turbo rattle.
I get what you're saying but no. Putting it into sport does not eliminate it. And if it is turbo flutter or trans putting it into sport mode, youll be adding more boost & increased line pressure in the trans. Which is liable to make your problems get much worse vey quickly.
Since I posted that I researched the rattle in depth and became more versed in the subject. I narrowed the sound to more of a rattle than flutter. I started running 93 octane and used the low gear button on the gear selector when my speed was under 15mph. The trans was staying in 3rd gear so I was lugging the engine and getting some pre-ignition. Once the engine dropped into 2nd the rattle, flutter, lugging disappeared. I attribute my intial response to lack of research and a cheap set of ears.
I think you meant detonation (knocking), not pre-ignition.
From the article:
You cannot have a little preignition, any more than you can be a bit pregnant. If your engine enters preignition, you will hole a piston almost instantly.
Pre Ignition is and detination are easy to flip flop. Even for semi experienced people.
