1999 Ford F-150: tire blowout or tread separation

Filed Sep 11, 2017 · Engine · 189,000 miles · TX

Spark plug blow out, 2 cylinders on right side involved. Vehicle was in the driveway and this occurred while we were attempting to start the vehicle. Spark plugs blew out while attempting to start vehicle in driveway in park. Damage to the plugs, coil packs and some smoking initially.

Filed Mar 25, 2014 · Engine · 190,000 miles · TX

Tl* the contact owns a 1999 ford f-150. The contact stated while driving 30 MPH he heard a popping sound in the engine, followed by loud, repetitive clicking or popping sounds. The contact pulled over to examine the failure and the number 4 cylinder had fractured, the spark plug also blew out of its proper position. The contact took his vehicle to the closest independent mechanic. By the time the contact reached the mechanic the vehicle was overwhelmed with a strong persistent odor of used gasoline. The mechanic stated the number 4 cylinder spark plug did blow out. The vehicle was not repaired. The manufacturer and dealer have not been alerted. The VIN was not available. The failure mileage was 190,000.

Filed Feb 4, 2010 · Engine · 227,000 miles · ME

Spark plug blowout on 1999 ford f150 with 5.4l triton v8. It seems to be a very common problem with the ford modular engines. Today, I heard a loud pop come from my engine bay as I accelerated and then the sound of what seemed to be a massive exhaust manifold leak. Upon further inspection, I found that the spark plug on the rear passenger side of the engine had ejected and broke the coil with it. I was lucky that it had only damaged the threads on the spark plug and sheared the coil at its mount, instead of damaging the threads on the head, but from reading the multiple other stories online about this happening, it seems that I am luckier than most. I was able to repair it by replacing the spark plug, boot, and coil, but from what I have seen, most people have to replace the head when it happens. I don't see why there has not been a recall since it can cause an accident due to scaring a driver when they hear a loud explosion in the engine when it happens, or possibly killing someone as fuel/air vapors escape the engine and the spark plug could possibly ignite it outside the engine, and being right next to the fuel rail and injectors, possibly cause massive fire damage with its occupants still inside the vehicle. Please tell ford to recall this problem. I see the fix being as simple as putting stronger thread inserts to prevent the spark plugs from ejecting. Its ridiculous us as car owners should have to continuously pay big bucks for a faulty engine design that ford refuses to acknowledge or fix. *jb

Filed Jul 28, 2008 · Engine · 91,000 miles · IA

Ford 1999 f-150 spark plug blow out & possible engine damage 91,132 miles. Truck not fixed yet, I am in the process of getting estimates.

Filed Nov 18, 2007 · Engine · 121,200 miles · NY

Spark plug blow out.

Filed Oct 19, 2006 · Engine · 81,791 miles · OH

I purchased my '99 ford f-150 in the spring of '04. At the time of purchase the truck had just over 49,000 miles on it. This past monday (10/16/06) while pulling out of a local parking lot, the #2 spark plug was ejected out of the right cylinder head, ripping out the threads that the spark plug screws into & destroying the coil pack located directly above. My truck on the day of failure had 81,790 miles on it. That's 18,210 miles short if the trucks first manufactures suggested 100,000 mile tune-up. Ford will not even consider the thought of making this manufacturer's defect right. They simply told me that the head would need to be replaced at my expense and at the cost of $2,800.00 to $3,000.00. It's a design flaw!!! The aluminum heads for the 5.4 l engines were engineered with an inadequate number of threads needed to retain the spark plugs. There are only 4 to 5 threads tapped into these heads (approx. 1/4" to 5/16" in length) today is october 19th and I have purchased a repair kit manufactured by dorman products to fix this stripped out spark plug myself. This kit is specifically made by dorman not ford, to fix this problem of fords 5.4l engines. It's really sad that ford has to use the consumers as guinea pigs and then fail so miserably to back their product. I'm hesitant to check the torque of the other seven plugs in fear that they will not withstand the recommended 25 foot pounds of torque required to tighten them up but if I don't then it's russia roulette as to when the next one will blow out and where I will be stranded when it does. I expect ford to stand behind their product 110%, especially when it is a well known fact by ford and the consumer that there is an engineering flaw with the design of the 5.4l engines aluminum heads produced between years of 1997 through 2002.

Filed Sep 21, 2006 · Wheels · OH

1999 f150's left front tire separated from the vehicle. *ts the left front spring bent as a result of the tire separating from the vehicle. The vehicle's undercarriage was damaged. The driver stated that new tires had been recently installed on the vehicle.

Filed Aug 14, 2006 · Engine · 195,300 miles · IL

99 ford f-150 197k miles. Cylinder #3 spark plug blow out. Almost broke fuel rail. No fire heads replaced. Seeking reimbursement from ford 3150.00.

Filed Dec 27, 2005 · Engine · 137,000 miles · MO

I have had different two spark plugs blow out of the head at different times. A heli coil was used to fix the problem.

Filed Oct 18, 2005 · Engine · 82,050 miles · TX

Dt: on september 23, 2005 had a spark plug blow out of the cylinder head of the vehicle. This was the spark plug on passenger's side, nearest to firewall. This was the third coil that the consumer had, but this it was the first time the spark plug came out. Contacted the dealer, they towed it. There was no forewarning. At 65 MPH, the consumer heard a pop and thought it was the tire, but it kept popping until vehicle stopped. The consumer exited the vehicle and discovered it was not the tire. Raised the hood and could see it flapping. No lights in dashboard came on and gauges did not move. *ak

Filed Aug 11, 2005 · Engine · 155,000 miles · MT

Spark plug blow out on 2nd to last cylinder on passenger side of 1999 f150 w\ 5.4 liter triton engine.

Filed Dec 8, 2004 · Tires · 49,880 miles · FL

Vehicle vibrated while driving 57 MPH. Consumer pulled the vehicle into a service station and noticed tread separated from the sidewall on passenger's rear side tire. 1999, ford, f150. Original equipment or replacement part was unknown at this time; tire size p275/60r17 & the dot #adt03jj4801. The tire manufacturer was notified.