1999 Ford F-250 Engine Problems

“#6 spark plug blew out of the head. I had it repaired two days later. Two days after that, the #3 spark plug blew out of the head while I was driving at 25mph. During both incidents gasoline fumes and exhaust filled both the engine compartment and the passenger compartment.”

“My truck was parked at work. When I got in the truck to leave I went to start it and I had heard a loud bang from under the hood followed by a clattering sound. I opened the hood and found that I had blown a plug. This is a known issue for Ford 4.6l 5.4l 6.8l engines. I know this is not the first time someone has reported this issue and I think its about time a recall is issued for this problem.”

“A major loss of power while towing a load. The loss was significant enough the first time that the truck could not shift into higher gears. Could only manage 55 MPH max. When I arrived home, took it to my local dealer to have it repaired. They had it for 10 days and were unable to locate any problem. They reprogrammed it, again, and gave it back with a significant bill. The problem persists. The next time I used it to haul a load, it did it again, only this time I was attempting to pass. …”

“I was driving down interstate 75 and suddenly I lost power and had a extremely loud piping noise coming from under the hood . I stopped immediately and checked under the hood I could not tell with the engine off so I restarted it and inspected it and found that my number 2 spark plug had blown out of the cylinder head after buying a new coil pack and spark plug set I discovered that all the threads had blown out of the head with the spark plug and after changing one of the other spark plugs I found that it was barely holding in .I think that the heads design was poor and weak and is s safety…”

“Heard a loud pop from under the hood while driving at highway speed. Sounded like it was right in front of the globe box area. The engine ejected a spark plug which is a very common failure for triton engines with aluminum heads - threads failed that hold the spark plug in place. I did not hear any warning sounds that a failure was imminent. The passenger side of the engine, spark plug closest to the firewall was blown out which is also very common. I smelled gasoline and exhaust and fortunately this failure did not result in a fire.”