It cannot smoke out of the spark plug. It can however be leaking oil around the spark plug area thus causing it to smoke. The problem is the valve cover is leaking. Try tightening the valve cover bolts slightly. If that does not stop the leak, replace the valve cover gasket.
This engine only has four spark plugs. this is wrong the 8 spark plugs going in the only head that has the engine 2.3. the oldest mustang have different engine
No, not unless your connect the plug wires wrong or one of the new spark plugs was bad.
wrong spark plug wire configuration. Check to see if two are backwards.
you are not getting spark. this could be from a bad alternator, bad spark plugs, bad spark plug wires, or bad engine coils. The spark plugs and wires are the cheapest so try putting in new ones of those first.
I had a similar issue, auto parts store sold me the wrong spark plugs. look into your plugs and wires.
wrong plugs or wrong gap!
Yes. It happened to me when I used the wrong spark plugs on my celica. If you're using the correct spark plugs and its still running lean it could be an in take leak, faulty maf sensor, dirty fuel filter or injectors.
either wrong spark plugs or sparkplug gap or you have to plug wires on wrong plugs
Maybe when they put the spark plugs in they were not gapped right or they maybe the wrong spark plugs.
Only if there's something wrong with your old spark plugs.
There is not a lot of information to go on from the question as posted. When an engine is in proper operating condition, the spark plugs should not be "wearing out", on a regular basis. From the information at hand, I would suspect the wrong heat range plug is being used. Check to see what spark plug the engine manufacturer recommends for your engine.
it means there is something wrong with the spark plugs cause they provide the energy for the engine