Well, I finally fixed my misfire problem!!!
Truck started running bad and check eng soon light came on. Had code scanned and #1 cylinder misfire. Installed new COP at #1 cylinder and truck ran great for three days and then problem returned and light came on. I scanned code again and still got #1 cylinder misfire. I wasn't sure if it was from previous problem since I never cleared code.
I swapped new coil to #2 cyl and reset light. Drove truck for two days waiting for light to come back on (bucking like a bronco) and finally it came on! Scanned again and now had #2 cylinder misfire. I went back to Autozone and got them to warranty out the COP and I installed new one again. So far it is running great - am keeping fingers crossed!

Has anyone else had bad luck with aftermarket COP's or do you think this is a fluke?

 

Ooooops! I forgot to mention....

This site is GREAT !!!!! Thanks for all the great information that allows many of us to troubleshoot and fix for ourselves these highly technical and sophisticated pieces of equipment. It would be nearly impossible to go at it alone - unarmed without all this information that is available at this site!

thanks again!