JD 4400 running rough.

[muddy]

Hi,
I recently acquired a JD 4400 and it smokes a lot and is sluggish. I added fuel injector cleaner and this has not helped as of yet. I think something may be wrong with the injectors,does anyone know of a good cleaner for the injectors ? Are the injectors hard to replace ?

 

[joecdeere]

Your first stop is a new fuel filter, a tank of clean fuel, and a clean air filter. Let us hear from you after that.

 

[muddy]

Thanks,
I already changed the fuel out. I will order a new fuel filter and air filter tommorow.

 

[John1]

I think there is a 5 year warranty on the pump and injectors by John Deere. Might be worth looking into.