Misfire that wont go away. - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 06-14-2011
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Icon4 Misfire that wont go away.

I am getting a PO300, PO302, and PO305 codes. That would be a "Random Misfire", "Misfire Cylinder 2", and "Misfire Cylinder 5".

It is a '97 Ranger, V6 3.0L 2x4

Since the readings, I have changed the spark plugs, wires, coil, and fuel injectors. I have finally come to a place that I have no idea what to do and I am thinking about just taking it to a mechanic. I really don't want to because I take pride in working on the truck myself.

Any thoughts would be more than useful. Thank you in advance!!!
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Old 06-15-2011
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I just got done with this issue on #5, ended up replacing the fuel injector.
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Old 06-15-2011
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Plugs, wires, coilpack, low compression?
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Old 07-09-2011
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James....do you know how to replace the fuel injectors? is that a do it yourself?
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