Ford Enthusiast

[LincolnTech10461]

Try checking the fuel injectors, the one on CYL 4 may be clogged which could either prevent the proper amount of fuel from entering the combustion chamber or the clog could be keeping the injector open which will "dump" excessive amounts of fuel into the combustion chamber


Btw, if your MIL (engine light) is blinking, the car is warning you that the misfire IS CAUSING MODERATE DAMAGE TO YOUR CATALYTIC CONVERTER due to raw unburned fuel entering the catalytic converter which will in a surprisingly short amount of time DESTROY the catalytic converter (to R&R a Cat Converter is appx a $3K - $3.5K job)