HI ALL , I HAVE STOCK 2001 F 150 SUPERCREW WITH 53,000 MILES. I BOUGHT IT WHEN IT HAD 19,000 MILES. RUN PERFECT UNTIL 3 MONTHS AGO, BUT I HAVE BEEN IGNORING THE PROBLEM. IT HAS A SLIGHT MISS AND JUMPING AND BUCKING UNDER LOAD. HAS NEVER SET A LIGHT UNTIL LAST WEEK. THEN I LET IT IDLE FOR A WHILE WARMING UP, RAN PERFECT FOR THE AFTERNOON AND LIGHT WENT OUT. THEN THIS SAT THE MISS GOT WORSE UNDER LOAD AND CHECK ENGINE LIGHT CAME ON. WELL I TOOK IT UP THE STREET TO A SHOP THAT WE SOMETIMES USE FOR ALIGNMENTS AND HAD THEM RUN THE CODES AND THIS IS WHAT THEY COME UP WITH, CODE P0306 CYL#6 MISFIRE. I HAD HEARD THE PROBLEMS WITH THE COILPAKS AND BOUGHT ONE JUST IN CASE. I JUST DIDNT KNOW WITH CYL IT WAS. WELL TONIGHT I CHANGED THE #6 COILPAK OUT AND THE WAS NO CHANGE. I HAVEN'T CHANGED THE SPARK PLUGS, BUT I WILL TUESDAY NIGHT TO SEE IF THAT HELPS. THE CODE DID NOT COMEBACK ON YET. ANYONE HAVE ANY OTHER IDEAS?

THANKS LARRY

 

driver side, second one back is #6.

 

THANKS I WAS TOLD BY THE SERVICE DEPT IT WAS THE FRONT RIGHT SIDE. SHOULD HAVE KNOWN BETTER.

THANKS LARRY

 

Well, if it was a V10 and they meant the right as you face it then the would have been right.

By the way, using CAPLOCKS is considered shouting.

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