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Just purchased a 2001 Escape for my daughter. Had it aligned and picked it up. When I left the parking lot the Check Engine LIght was on and the engine was misfiring a bit. Checked the code at A/Z it was a P 0304 in Cylinder 4. (V-6). Total novice at this... any suggestions?
Print out said:
Ignition system fault - spark plugs, Ignition wires, coil
Vauum leak
injector fault
high or low fuel pressure
Ran the engine at idle, revved it to 4000 RPM and felt the misfire periodically.
Keri
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I'd guess you need a new coil for the suspect cylinder... not sure which one is throwing the code...
P301 is in the title (cylinder #1), but P304 is mentioned in you post (cyl #4). .
this is what mine did.In the morning or humid weather it would run really rough then clear up.I found the egr vacuum line on the back of manifold was bad and the lower intake gaskets.Don't know which fixed it but no issues in over 1 1/2 years