The old oil filled coils would cause real problems when they developed an oil leak.
Heat can cause problems with coils even the new ones, its best to get an actual misfire count on all cylinders rather than looking for a misfire code when you suspect misfires and no code.
Most of the time they are like a light bulb, it works or its burned out but not always, there is a chance the resistance is too high and its malfunctioning.
Heat can cause problems with coils even the new ones, its best to get an actual misfire count on all cylinders rather than looking for a misfire code when you suspect misfires and no code.
Most of the time they are like a light bulb, it works or its burned out but not always, there is a chance the resistance is too high and its malfunctioning.