new motorcraft wires and plugs #6 will run good for a while then mis slightly then very bad after a few days, plug that come out look good, put in new plug runs good for a while then, same thing...bad injector maybe??? what do you guys think?

 

A new coil pack might fix it.-Johnny

 

Thanks, it was a bad wire, runs good now

 

How old are the wires?
Consider replacing the whole set.

 

wires only have about two oil changes on them (5-6000 miles) shoudn't have went bad that quick, they are definitly NOT worth the money they charge for them........

 

curious, what brand wires?

 

Motorcraft wire's and motorcraft platinum plugs from dealer....