5.4 engine miss - Ford Truck Enthusiasts Forums

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5.4 engine miss

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Old 01-26-2011, 10:22 PM
brentaleclaire brentaleclaire is offline
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5.4 engine miss

Recently my 99 f250 super duty developed a miss,no check engine lights came on,but after hooking up a portable scan tool, I found a code . The code showed a misfire on cylinder 8. I changed the plug and coil pack ,but I still have the miss.I then pulled the plug wire and hooked to a new plug and could see a good spark. The scanner still shows a miss on #8. Anybody have any ideas?
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Old 01-27-2011, 08:21 AM
Wilber15 Wilber15 is offline
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Injector or low compression?
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