This is my first time posting on this site, and I need some expert advice please.
My Taurus SE is a 2006 model with 25k actual miles. I haven't had any trouble with it until now. I took it on a 200 mile round trip last week & everything was fine. When I next started to take a ride, I noticed that the engine misses at higher rpm. I discovered it like this. I got out to close my gate & thought I heard a little squeaking from under the hood. I reached in and revved the engine and it starts missing above 3200 rpm. There is no check engine light on. When I attached a code reader it does not indicate a problem. Anybody got any ideas?