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ToeNuttz

Code P0304 Cylinder 4 Misfire

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2017 Edge Ti 2.0L shows P0304. The spark plugs were changed and I swapped ignition coil 4 to 1 spot. The code was cleared and 2 days later it popped up again, same code. Could my next target be my fuel injector?

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Although not typical for a coolant related issue, have you been tracking coolant level in the reservoir/degas bottle?  If it has been steadily and appreciably declining, you could have a problem.


How many miles do you have on your 2017?

 

Fuel injectors should set P020x codes, but they typically come late in the day for GDI injectors.  I have seen many fail without an error code being set.  So is it possible?  Yes. If you change 1 injector, change them all.

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2 hours ago, WWWPerfA_ZN0W said:

Although not typical for a coolant related issue, have you been tracking coolant level in the reservoir/degas bottle?  If it has been steadily and appreciably declining, you could have a problem.


How many miles do you have on your 2017?

 

Fuel injectors should set P020x codes, but they typically come late in the day for GDI injectors.  I have seen many fail without an error code being set.  So is it possible?  Yes. If you change 1 injector, change them all.

I have not been tracking the coolant level. My Edge is just shy of 70K. Just like spark plugs, change one you change them all. I have not looked into the replacement of the injectors yet. What would this typically run as far as cost and time to do it myself?

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IDK how much time it would take, but repairpal estimates 4-500$ in labor costs, so 4-5 hrs for a pro to do it.

https://repairpal.com/estimator

Usually some additional small parts are required to be replaced with these injectors, so you will need to grab a copy of the factory procedure.

 

Cost - about 250+shipping/taxes

https://www.rockauto.com/en/catalog/ford,2015,edge,2.0l+l4+turbocharged,3310416,fuel+&+air,fuel+injector,6224

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