'97 e150 hesitation/stumbles between 45-55mph in overdrive
I finally found the reason for the hesitation problem on my 1997 Ford F150 Extended Cab 4x4 Lariat (79,500 miles). Bad spark plug wire, number two cylinder. I replaced the entire spark plug wire harness system. Truck runs great/smooth. I also had the injection system professionally cleaned/flushed.