Mechanics

FORD FOCUS SPARK PROBLEM

2002 Ford Focus • 144,000 miles

I have a 2002 Ford Focus Zts Zetec and it first started bucking when I went to come to a stop but was fine while accelerating, I then fixed the ignition coil, spark plugs, valve cover and gasket, cleaned the Mass Air Flow sensor and spark wires. When I had it tested, it said that there was a misfire in the fourth cylinder and I have no idea what else could be wrong with it. After all that has been fixed there is still a really rough idle. I'm close to giving up. Help?
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March 2, 2013.




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