Know this might be a stupid question, I have a 13 fx4 ecoboost and I've noticed their so are Lot quieter now compared to when I first got the truck, I've only put 2300 miles on it since I've got the truck, idk I've been rolling around with windows up lately but even before that I noticed the loudness of them dropped off before I even got my windows tinted

 

171 views any nobody has any clues?
Went to dealership today and service guy mentioned a transit mode? Made an appointment for next Friday for them to "diagnose" it

 

Has there been a change in ambient temperature lately? I wouldn't bother with getting it diagnosed. There really isn't anything wrong with your truck. Enjoy it!

 

Lol it's gotten colder here but it's not Alaska type cold. I just don't wanna have a lemon and end up with problem after problem that's why I waited till now to get the eco

 

The only time I'd get concerned is if the turbos got significantly louder, like what happened on my old truck. Sometimes they were so loud that they overpowered the engine noise itself. I'm not particularly mechanically inclined but I believe that turbos thrive when it's cold, so colder temperatures should theoretically make them quieter.

 

I thought it was the opposite, idk I'm gonna keep my ears open but was curious if anyone else had the same situation