code 3 on 98 Mountaineer

[Mikeri]

Code 3 shows a misfire on cyinder 3. Where would you start? Next step?

 

[Dan Whitaker]

Most likely it's a bad plug or bad plug wire. It could be a fuel injector but I doubt it.

 

[Mikeri]

Tried some Techron, still stumbles. Engine cooling now, for wife to try to reach the 3 plug and wiggle it some. With 43k miles on the platinum plugs and 109k on the original wires, I may just do a swap out.