just curious forum, every time i shut off my engine get out of the truck and walk around the front, i can hear the fans shutting off and they start squealing as they come to a stop, normal?

 

Wait till the twin-panel moonroof starts popping, if ya got one, till the bed starts creaking, till the roof starts popping, till the wind noise starts a whistling, till the dash starts a rattling, till the steering starts a popping, till the clunk from the rear of the truck, till the tailgate step pops a open, till the dash starts a warping, etc., etc. It's almost like these 2015 F150's are trying to talk to you, you think??

 

HA! well put, good perspective on things, not trying to make a mountain out of a molehill.

but,

wd40 ok to start spraying under the hood?

 

This should be easy one for Ford dealer service dept., good luck.

 

You would think it would be easy... I've had 7 fans replaced... and now it's doing it again... on to fan number 8

 

My 2015 did that from day one. I just ignored it.

 

Mine went through 5 sets of fans, all squeaky. They never stopped working, but they did sound bad. Dealer replaced them each time. They'd be quiet for awhile then squeak during wind down.

If you search the forum there's a decently long thread about this from probably a year ago.