Hey guys, new to the forum and first time post.
I have a 6 cylinder Ford Ranger- 2004 3.0L.
I have had the check engine light on- and off sporadically, got it checked and the computer says my cylinder #4 is missfiring.
I've changed the plug, spark plug wire, power coil. I've run fuel injector cleaner through it 4 times, and valve cleaner in it twice.
I should note that I didn't replace the fuel filter on it for it's first 80,000 miles. A friend of mine says to replace the injector, but i don't want to keep throwing parts at it. Any ideas? Thanks.