2003 Ford Expedition 2003 ford expedition

2003 FORD EXPEDITION
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GRAHAMJ115
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Engine Performance problem
2003 Ford Expedition V8 Two Wheel Drive Automatic

I have a 2003 ford expedition it has been missing fo a while now. I brought it to a local garage the mechanic said the number four cylinder was missing. I recently replaced the motor with another 5.4. I replaced all the plugs an coil packs, however the miss is still there. I went back to the same garage an the mechanic hooked the computer. It shows the same code, number four cylinder misfire. What should I try next?
Dec 23, 2009 at 2:02 AM
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