Q&A

Try changing one of your coils with another cylinder, clear the code(s) and see if the misfire and code changes. Actually I have replaced a lot Ford coils. Remember, the parts store guys/gals mean well but they aren't trained and seasoned techs. If this doesn't help let me and I will give another thing to do.

The next thing to check is the intake manifold gasket and the manifold it self. You have a misfire code on each bank i.e. P0304 and P0307, so that means there is a problem for both cylinder banks. I really doubt that injector flush will help much. I do Emissions work in N Calif and have to deal with misfiring Fords to get them to pass Smog. Have some one check your Fuel trim numbers to see if the engine is running too lean, also a sign of a vacuum leaking manifold/gasket.

clean the injectors/ shop air over a cleaner canister- gm top engine cleaner recomened, and then z-max micro lube with gas 50 50 for final will clear it right up.tom from palmer automotive palmer alaska

were having the same problem.what i found out was if you take the sparkplug out thats misfire and see if its soaked with fuel.the gap is to wide.thats what i found out.if the cylinder is wet with fuel it will trigger alots of codes.