Re: Another Engine Misfire Question
I carry a spare coil, a spare starter relay (the fender one) and a can of MAF-sensor cleaner, since I have an oiled air filter (AFE). Really the starter relay has been the only thing to sideline me, and only for a minute while I dug out the Leatherman to jumper the relay terminals. Of course, its always managed to happen at awkward moments...
A failed coil certainly makes the drive less pleasant, but once the misfire gets bad enough the PCM just shuts fuel off to that cylinder (and turns on the SES light), and at that point no further damage will occur.
Fuel pump generally gives some early warning symptoms, but even if it doesn't, a good solid thump to the tank while cranking will usually get you going at least a few more times.e
2000 E450 dually V10 wagon