So I am in the UP so the temps are cold so it makes sense, however my truck will not idle down to under 1000 rpms. I have remote started it and let it sit for 5 minutes in 40 degree weather. It still sits at just above 1000 rpms. Anybody know what’s going on or if it just takes a long time to warm up.

 

Welcome to the forum. We gonna need to know what you're driving at the very minimum. The more details you can provide, the better.

 

I drive a 2016 F150 with the 2.7.

 

High Idle that does not come down to normal after sufficient engine heat is either a commanded more open Throttle Body position from a fault with the cooling system or throttle is stuck more open for some reason.
Cooling system:
Thermostat stuck open causing engine to run to cold. This causes commanded higher Idle and Richer Fuel Injection and additional air and some Ignition advance all = higher Idle.
Cylinder Head Temp Sensor fault.
A Vacuum leak allowing uncontrolled air (after) the Throttle body
.
Throttle Body plate gummed up and or needs cleaning and or a re-set done.
Or faulty Throttle Body.
.
Feel check the top Radiator hose for Heat from cold idle. It should get much hotter when Thermostat fully opens.
What is the cooling system Temp? should see 195*--210* +/-
Less than 195 is too cold for engine and control program under which it is under command.
Good luck.

 

I have a 2017 with the 2.7 so same gen engine and transmission as you. I live near detroit, even if it's 10F out my truck willidle down after just a couple minutes. Sometimes it will idle down sooner if I shift through the gears. I suspect it's something to do with a little load, but might just be programming. Something is up, you should investigate the things bluegrass mentioned.