Problems with 1999 Ford F-150 ENGINE AND ENGINE COOLING

Tl* the contact owns a 1999 ford f-150. the contact stated that the exhaust manifold started breaking away from the vehicle. the contact took the vehicle to a mechanic and was informed that the bolts holding the manifold in place had rusted and broken off. the contact was also informed that this was a common failure. the failure mileage and current mileages were 291,000.

Started the truck up an blast off! dont know where the plug went but it was gone after i heard a loud bang. *kb *tr

Cylinder 5 spark plug blew out while driving, wrecking the threading in the spark plug hole and the coil. *tr

I purchased my 1999 ford f-150 4x 4 with a triton 5.4 v-8 engine used. the engine had approximately 140,000 when i purchased it. i only drive it to and from work in las vegas, nv (approximately 25 miles round trip) at speeds below 50 mph. the engine blew the back plug at 163,000. because it was the back plug the labor to repair was high (pull the engine). the difference in putting helicoils (all eight plugs) in and a new engine was not that much difference so i order a long block full engine from ford with stipulations it corrected the design flaw. the engine cost almost $7000 when all was done and complete. ford warranty the engine 3 years and 75,000 miles. i figured this corrected the issues with the spark plugs blowing out. well at the 4 year point and approximate 25,000 miles the new engine blew a plug. ford and the dealer (whom we purchased the engine from) say it is our problem. the dealer (parts manager) actually said since i was not a frequent customer and had purchased the truck used they did not see a way to help. i have researched this issue on ...

Have had a spark plug ejected twice now within 3000 miles. after some research this seems to be a common problem with some ford engines. it was actually pretty scary due to the strong odor of gas afterwards with the engine being so hot. it now seems like its going to be a costly problem to fix. even worse, the fix is no guarantee that it won't happen to the replacement cylinder heads. *tr

In may was at a stop light when the light turned green i accelerated and the plug blew at seconds later i got it towed to the shop fixed it with the heli-coil kit days later as i was going up a steep hill heard a popping sound brought it right to the shop another plug was ready to eject they pulled all plugs anti seized them good for a couple months now in sept it is ready to lose another plug. my truck is a 1999 ford f-150 triton. *tr

While driving 45mph on suburban two lane highway i heard a loud bang and subsequent rhythmic popping sound accompanied by an engine misfiring. upon inspection i found the # 4 cylinder spark plug lying on the valve cover; un attached to the cylinder head. the mechanic found the threads "blown out" of the head and had to utilize a heli-coil kit to repair. the spark plug was a motorcraft original equipment part. this seems to be a prevalent problem with the triton 5.4 liter engine. i suspect the problem originating from undue stress fractures in the aluminum head after continued use and inherent thermal differential rates (expansions/contractions) of the two different metals; i.e. steel spark plug vs. aluminum alloy head. poor engineering !! i am the original owner of the f150 with 140k miles. *tr

1999 ford triton 5,4l. #2 sparkplug thread failure. the sparkplug was blown out of head and ignited a small fire under the hood. *tr

Ford f-150 5.4l triton engine - blown out spark plug...plug ejected from the engine while - smoke, minor fire... *tr

Tl*the contact owned a 1999 ford f150. the contact stated that after driving 1/4 mile and then parking the vehicle near the garage the truck caught fire while it was turned off. the fire department was called and extinguished the fire. there were no injuries. the vehicle was destroyed. ford has not been contacted. the failure mileage was approximately 120,000. updated 09/16-10 *bf updated 09/20/10*jb the consumer stated the fire started under the hood. prior to the fire, the battery light illuminated. updated 09/20/10.*jb updated 08/01/11 *bf the consumer stated the fire started under the hood. the fire dept. did not know what caused the fire. six days before the fire, the battery light illuminated. the consumers husband had the vehicle inspected and everything checked out fine. updated 08/02/11

I noticed a ticking noise which sounded like an exhaust manifold leak for the past few days and just today i was taking off from a stop sign when the spark plug blew out of the head creating a loud knocking/ticking noise. i have not had it fixed yet, but from what i understand this can create engine fires which can be a major safety hazard. *tr

After driving the vehicle approximately 10-12 miles, i parked it in the driveway. about fifteen minutes later my wife and i smelled smoke. when i investigated, i found engine compartment of the truck in flames. the fire appeared to have started on the driver's side of the engine compartment above the front wheel. fire company was required to extinguish the flames. everything forward ofthe firewall was destroyed. *tr

My 1999 ford f150 was sitting in the driveway next to the house. apparently it spontaneously combusted. it is now a burned-out shell of a truck. fortunately, my wife was working from home and called the fire dept so the house did not suffer much damage. i did lose a few thousand $ worth of tools in the truck. *tr

I own a used 1999 ford f-150 5.4l engine. it has approximately 117,500 miles. while driving on the freeway in california yesterday, i heard a loud knocking type noise. i pulled over to the shoulder and with the engine running opened the hood. just as i did, the spark plug ejected from the cylinder head and came within 3" of my skull almost killing me. took it right over to the power ford dealer in tustin, ca. they want to charge me a diagnosis fee to tell me what i already know. i told them they better assure me that the remaining 7 plugs won't do the same thing or i may have been killed and a law suit would have been a definite. this is very dangerous and out of warranty so to speak, but it a unique problem all it's own. this has to lead to a recall. it is far to dangerous and in light of what has come up with toyota recently we cannot allow these things , these serious danger to continue to be allowed to save ford a few $. i ...

Tl* the contact owns 1999 ford f150. while driving at 55mph the vehicle shut down without warning. he took the vehicle to the garage. he was informed the motor head sending unit had to be replaced, but the motor head hole was defective because it was drilled too large.the garage was not able to replace the motor head in a timely manner. the total cost for repair was $700.00.the contact contacted the manufacturer. the manufacturer did not offer any assistance . the failure and current mileage was 130,000.