I have an 07 Sport Trac with 4.6 with #4 cylinder misfire. on 2007 Ford Explorer Sport Trac

So far I've changed out all plugs and coil packs for cylinders 4 and 8 because I retrieved codes P0304 and P0308 and P1000. My truck continues to throw P0304. I've also used an EXPENSIVE injector cleaner. What else can I do, Could you please help?

by in Richmond, VA on January 12, 2013
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1 answer 2 comments
ANSWER by , January 12, 2013
maybe your injectors are starting to fail, try switching injectors with others.
COMMENT by , January 13, 2013
I agree
COMMENT by , January 13, 2013
I went out last night and picked up a multimeter to test my injectors. Can anyone advise me on what the normal resistance should be for my injectors.