All stock nothing noticeable under the hood. When it starts and is put in gear the engine sounds as if it's under load. The turbo indicator goes up and down erratically it seems and then when highway speed is achieved it goes away. All around mileage is 12mpg. Transmission shift is smooth all...
I have a 2016 f350 and it has a high pitch whine when I drive it, almost like it is stuck in some way. It seems to disappear "sometimes" once I get on the highway and attain speed. Any suggestions?
I have the navigation in my factory system however it is not activated. I have the SD card for the maps. When I try to install from the screen it states their is a file missing from the "root" directory. I called the Ford owners line and after dealing with a non-English speaking person they aid...