Two problems related to ignition coils failure have been reported for the 2004 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Ford F-150 based on all problems reported for the 2004 F-150.
First noticed ticking noise in my 2004 5. 4l 3v v8 engine. Oil was at correct level. I went down a road I routinely go, and started hearing a very loud clanking. Spark plug blew out of the hole and now trying to fix. Hopefully wont have to replace the head. Apparently I am not the only owner of this engine with the same problem!! this is just the one cylinder, but I have 7 more! am I going to have to do this with all of them? I had to have it towed to the only people who will try to fix it. Other repair stations say they wouldn't touch it and that they had, or have been threatened by, a lawsuit from the vehicles owner. This has already cost me the replacement of the ignition coil, a an expensive spark plug, and a lot of down time.
The contact owns a 2004 Ford f150. While driving 25 mph the engine shut off without warning and he was unable restart the vehicle. The vehicle was towed to the dealer and they stated that the #5 ignition coil caught fire and blew a relay fuse. The failure previously occurred with the #6 ignition coil. The failure mileage was 191,361 and the current mileage was 191,461.