Started the truck this morning and noticed a slight chirping from the engine. It seemed to last until I pulled out of our development and toned down < 1/2 mile or so. The weather was cool (55) and wet out from an overnight misty drizzle.

I google searched and saw a lot of posts regarding manifold exhaust leaks, but all on higher mileage previous generation 150s. Mine is a 2016 with only 1,000 miles on it.

It's a very light chirp, but just enough to catch my attention with the radio off. Not sure if this is known issue or just bad luck on my part. Or maybe it's a normal sound for turbos warming up? I've never owned a DI or turbo engine before so all these new noises are hard to distinguish normal vs abnormal.

 

My first thought was that it may be a belt, maybe one that's a bit too tight? Once running for a few minutes, it warmed up and stretched a bit so it stopped making noise.

 

Not sure what engine you have but similar sounds have been reported on the 2.7:

https://www.f150forum.com/f118/f150-...squeal-358257/

https://www.f150forum.com/f118/2016-...-noise-352305/