Ok so last week my truck had a misfire. It threw the code that #3 was missing. As I changed my plugs about 2k miles ago I figured it was the COP. I replaced the COP reset my computer and the code didn't come back and the truck ran fine. Today getting off work my truck stared with the same symptoms as before, its missing about 1500 rpms under light acceleration. Did the new COP cover up the real problem for a little bit and if so what could be the culprit?

 

did you change all your coils

 

I would check the spark plug. It's possible you're spark plug is going bad for some reason. #3 is kinda a pain but it's better than having to get it helacoilded.
4 8
3 7. Drivers side
2 6
1 5
Front
Just in case you isn't know the plug numbers

 

No only #3 it was the only code thrown. Ok ill swap out the plug 3 wasn't my mortal enemy like 4 and 8 are

 

Haha ! They are a PITA

 

Well its off to the dealership. I changed the plug and the miss is still there and worse with no code. So my talent is out.

 

did you check to see if the coil was bad? i would do that before you go spend lots of money at a dealer.

 

I did replaced the coil and plug, miss is there and now worse. Only help is my buddy is the service manager at the dealership.

 

thats wierd, well good luck hope you get it fixed, missing isnt good for your truck and its annoying *** hell, mine was missing and i had a bad coil and plug.

 

Yea It would help if it threw a damn code but it isn't. So guess ill have the fine ford motor techs swear st my engine today.