Missing and or poor fuel economy. If the plugs have over 75,000 miles on them, just replace them. The same symptoms will occur with defective spark plug wires.
No electrial spark or fire at the plugs.
No spark from coil, bad plug wires, or bad plugs.
ck for vac.leak or bad iac valve
No, but burning oil will give you bad spark plugs.
having bad spark plugs could effect how the spark sparks and when it sparks. new plugs is never a bad idea
Bad spark plugs, spark plugs wires, etc.
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.
sounds liked going cut out
symptoms are: you can hear the engine missing, spitting and sputtering, loss of power...you can tell if it is a coil pack by unscrewing the spark plug that it connects to coil pack. when you look at your spark plug it should be a light grayish, white..this means the coil pack is working....it is best if you do this with new spark plugs, because your spark plugs could be bad. but you do this process until you find a bad plug then, that coil pack probably is the bad coil pack.
Spark Plugs do not affect your alternator. As long as your engine is running then it should be charging unless your alternator is bad