Hi I have a 2001 ford explorer sport I have two problems I think first my truck is giving me two trouble codes p0300 random misfire, and p0304 cylinder 4 misfire, so I replaced spark plugs and wires still having problems it idles like it is still misfiring and also when I first start my truck it idles real rough and dies.
What should I look for on the egr valve I took it off and it doesnt really look that dirty the truck only has 60k miles on it. Is there anything else that could cause this?
February, 6, 2006 AT 7:20 PM
Have the coils checked or the check the ignition wires.
I have a ranger that ran rough like that as if misfiring and ran rich turned out to be the egr valve.
I overlooked the fact you had the trouble codes