i changed my ignition coil last week and that totally cleared up every problem i was having until just about a half hour ago. my 99 f150 (4.6l--v8) totally died at a stop sign, and this is reminiceint of the behavior before. the exception here is that it will not restart after sitting for a few minutes. also, there was a small amount of smoke that dissipated after a few moments and i was left with an immobile truck and the lingering smell of what i can best describe as 'burning army men'.

any ideas? im not vehicle savvy at all, so i'm sure im being vauge. any help or suggestions would be greatly appreciated.

 

okay, i relaced the cam shaft sensor, as a recent code check indicated needed to be done, but im still experiencing the same problem with the same sounds. the starter is reving up like it wants to go, but then nothing happens.my service engine soon and oil lights then turn on.

any help? also, is the the right forum for this?

 

i am not quite sure what is happening but this is the right forum i am sure somebody on here will be able to help you out good luck

 

okay, so i have identified the area that is causing the problem. i have replaced the ignition coil not once, but twice today. each time i have it has cracked open, and twice it has melted. i don't know what could be causeing this to happen, but i have a feeling its not the coil!

any ideas on what i need to fix or replace that would cause the truck to not burn out ignition coils? help!

 

UPDATE

took it to the shop and they told me there was some hardend 'residue' in the mount for the ignition coil that may have been causing it crack, and inevitably blowout, when tightening down the bolts. this was also the cause of the blown fuse (specifically a 30amp minifuse located in position 30 in the cab fuse panel which powers the passive anti theft transceiver, cluster, ignition coils, powertrain control module relay).

i was skeptical of such a simple fix, but it drove fine. unfortunately that only lasted a day before frying the new coil, blowing another fuse, and loosing all powersteering going 70mph. i managed to safely pull it off to the side and since i was traveling i got a new ignition coil and replaced the fuse just to get it off the side of the interstate and hopefully home. got 2-3 miles up the road before the coil melted again. the only things i can think this could be would either be the relays or the spark plugs/ignitors. any other ideas would be greatly appreciated...?

 

Well to be honest I didn't read the entire thread. Also, sorry you have been left in the cold on your problem.

If I had to guess I would say check your plug wires, battery cables, and most other coil associated wires. Maybe even the alternator? I doubt it would be the alternator though. I would guess you have a short in your system.

On a side note, does eddy current occur in DC electricity? I would throw that in the mix if it does occur in vehicles.

 

I wonder if you have figured out your issue since i am having the exact same problem.