2017 F150 Lariat V8 - 9k miles. When I engage 4wd and make a tight left hand turn (like turning into a parking spot) - the front end makes a grinding noise and the truck loses power. I Saw some prior threads about possible reasons/solutions but there seemed to be some remaining questions and some dealers who didn’t know what to do - anybody have anything current on this issue? Appreciate any help/insight!

 

Don't know about the 2017 model but on the older trucks you should never engage 4wd while on pavement, only on dirt or snow/ice. Did you read the owner's manual?