I brought my truck by the shop but they can't get to it until wednesday.
I do have one question,
I i pulled the little grey conector off of the #1 fuel injector and nothing happens, and then I pull the one next to it and engine runs even more rough.
Does this mean the injector on #1 is bad and not getting fuel or that it is not getting fire.
I have replaced: both coil packs, plugwires (lifetime warranty) plugs (Autolite plat.) EGR valve, fuel filter and air filter.
When I run it and then pull #1 plug, it is clean but does have what looks like oil or gas residue on it but if I put the plug into the plugwire and ground it I get a good spark.
Also I have no smoke coming from tail pipe.
I just trying to figure it out before I bring to shop,