In general (very loosely) a misfire can be a bad plug, wire or coil.
what causes hesitation on ford f150 truck
What causes misfire 302, 304 and 306
Change spark plugs and wires... TUNE-UP...
Do a proper diagnosis to figure out the cause of the misfire, then repair it.
How do u fix a misfire
i have a 1998 ford expedition and i had simaliar to the same problem. does it feel like your loosing power? on my truck it was a misfire on my engine coil i would get that check out
I had the same problem with a 1999 Expedition and it was a bad plug. Ford had a problem also with the plugs blowing out. It cost me about 1200.00
This could be bad spark plugs or plug wires
P0302 is a cylinder number two misfire. Causes include spark plugs, injector, internal engine failure, etc.
Check the spark plug and the wire on the 8th spark cylinder. Corosion, short, or just bad.
exhaust leak misfire cylinder imbalance