Question about 1999 Ford Expedition
98 Ford Expedetion 4.6. When it idles in park it does not misfire as much as when in drive in idle. Give it RPMs and the misfire goes away.
You have an ignition coil going bad if the check engine light is on have the code pulled and it will pinpoint witch cylinder is missfiring if it is not on you will need a scan tool to watch the missfire in data mode to pinpoint it that way.you may also find when you pull the coil out that is missfiring it may be covered in oil you will need to replace the valve cover gaskets if this is going on and clean the oil off the coil and **** the oil out where the spark is
Posted on May 29, 2009
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Posted on Jan 02, 2017
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