Auto Zone or other parts stores should be able to use an OBD II reader to diagnose the problem and tell you which coil pack is bad. Replacement is simple. Simply remove two screws and replace the coil pack. I just went to Auto Zone to have the modulator checked on An '87 Maxima and they told me it wasn't in their book.
Most automobiles will not start with a nonfunctioning coil pack. The coil pack will cause the spark plugs not to fire.
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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.
A bad coil pack would not smell like gasoline.
bad coil pack... replace coil pack
Then there is a no spark condition and engine will not run. If it has more than one coil pack it will miss on the cylinders controlled by the defective coil pack.
Bad coil or coil pack.
pcm, bad coil, bad motor, bad crank sensor, lots of ifs
Go to AutoZone have them rear your codes for FREE. This way you will know which Coil Pack is goig bad / or is bad. If you have a 4.6L you will have only 2 Big Coil Packs. If you have the 5.4L you will have 8 Coil Packs , One coil pack for each cylinder.
auto zone will check your codes for FREE. if you have a bad coil pack they will tell you.
part of your coil pack could be bad or your ignition control module could be bad it just bolts right on top of your coil pack
bad spark wires