Have changed the fuel filter lately? You may moisture in the fuel, I suggest you change the fuel filter and add some fuel addatives to the gas tank. This will help to help get rid of the moisture and clean the injectors. The fuel filter requires special tools to remove the old one. If you are going to attempt this yourself make sure you let the truck sit with the ignition off for at least a half hour. That should be enough time to allow the fuel pressure to bleed down, or you can relieve the pressure at the fuel pressure test port. Keep that hot trouble light a good distance away too, you don't want cold gas hitting that hot bulb.
I apologize for suggesting the fuel filter again, I had read through your problem and must have not noticed the fact that you had already changed the fuel filter. There is a product out there for cleaning the injectors, available at most auto parts stores. It attaches to the fuel pressure test port. Then you remove the fuse for the fuel pump and start the engine and allow the engine to run on the injector cleaner that's in the can. With all new ignition components it almost has to be fuel. No "Check Engine" light?
Yes, hook the injector cleaner to the schrader valve, there should be instuctions on the can. That truck has a coil pack and wires, correct? If you are getting a misfire on No. 5 try switching that plug and wire to another cylinder to see if you can get the misfire to move. You may have a bad plug or wire. Even though they're new.
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while im thankful of your effort, as i already said, changed fuel filter already, one thing i did not mention in my original post was that ive been dumping chemtool to it off and on since this all started as well.
thats what i didnt understand, the check engine light isnt on, it came on once when i pulled my maf sensor out, but only because i didnt put that rubber boot, where the wires for the maf go into the airintake, back in all the way and it was throwing a air temp code, when it threw that code it also said p0305 cyl 5 misfire, i cleared the codes, and pushed the rubber boot back in and drove around all week, still no check engine light.
now as far as the injector cleaner that hooks up to the service port, the port your refereing to is that the schrader valve on the driver fuel rail? or better yet, is there some diagram or walkthrough for that procedure, im not mechanically illitereate just not very familiar with engines.
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