The contact owns a 2005 Ford F-150. While stopped, the contact heard a ticking sound coming from the engine. The vehicle was taken to the dealer for diagnostic testing where the technician stated that the cam phaser and the tentioners would have to be replaced. The vehicle was not repaired. The approximate failure mileage was 39,000.

- Lebanon, OH, USA

Truck continues accelerating after foot is removed from accelerator pedal. Almost impossible to stop with brake pedal. Had to take out of gear to stop truck. Restarted truck and it operates properly. It has happened three more times since this original occurrence. Ford dealer could find no problem in 2007. Am taking it back again as it has happened twice in the past year.

- Melbourne, FL, USA

The contact owns a 2005 Ford F-150. The contact stated that the vehicle was idle and in park when it exhibited an abnormally loud popping sound. The vehicle was taken to the local dealer who diagnosed that four cylinders were defective and needed replacement. The vehicle was not repaired. The dealer and the manufacturer were notified of the failure but denied any assistance with repairs. The failure and current mileage was 61,000.

- Cedar Rapids, IA, USA

Spark plugs came apart during routine maintenance/replacement. My require complete removal of cylinder head to remove broken pieces. Design is horrific and guaranteed to fail.

- Virginia Beach , VA, USA

Proceeded to drive out of home driveway onto road, which is gravel and travels immediately downhill. I heard a pop and what sounded like exhaust/compression popping and experienced the engine skipping with slight loss of power. I turned around, as soon as it was safe to do so, and drove back to my own driveway. I contacted a local mechanic which I use regularly and explained my situation. The mechanic was only able to check it out Thursday 8, September, 2011. He then diagnosed the problem as a blown sparkplug and suggested I contact Ford for some relief as the problem is widespread. I did and was denied. The problem, as I understand it, could have resulted in having raw gasoline spraying out of the spark plug hole, onto a hot manifold and possibly causing a fire.

- Huntington, VT, USA

I have a Ford 2005 F-150 that has a misfire in cylinder number 6 due to a spark plug defect according to the mechanics. The spark plug cannot be removed without breaking as it appears to be fused to the head. It is my understanding that Ford manufacturer will not repair or replace this defect at no cost to the consumer. Upon further investigation, and judging by the number of consumer complaints with the same issue during the past few years, this problem appears to be a manufacturer's defect and thusly not a consumer problem. The spark plug defect was discovered at the time of emission testing which is required annually under Georgia law in order to acquire a vehicle tag renewal.

- Atlanta, GA, USA

The contact owns a 2005 Ford F150. The contact stated that the motor was faulty due to the design, causing a carbon build up that blocks the spark plugs. The vehicle was towed to the dealer; however, the dealer was unable to remove the spark plugs. The manufacturer referred the contact to NHTSA to file a complaint. No repairs were performed. The current and failure mileage was 131,000.

- Folsom, CA, USA

The contact owns a 2005 Ford F150. The contact was driving at relatively low speeds when the brakes were applied and the vehicle stalled. The vehicle was taken to the dealer where the contact was advised that the engine mass air flow sensor failed. The vehicle was not repaired. The failure and the current mileage was 90,000.

- Tulaski , VA, USA

My 2005 Ford F150 quit while driving down the highway with my 12 yr old son. Engine began to spit and sputter and stranded us on the highway. After towing to my local Ford dealer. The dealer discovered the timing chain had slipped causing the truck to jump time and ruining the engine. The truck has 130,000 highway miles. Now they want $7,500 for a new engine. The other issue is my rear driver side window just fell into the door. They want between 200 and 300 dollars to repair.

- Wewoka, OK, USA

2005 Ford F150 spark plug ejected from engine.

- Ca, CA, USA

2005 F150 supercrew 4X4 lariat; with a 5.4 3 valve/cylinder engine; check engine light came on and indicated cylinder 5; mechanic went to pull the plug which broke in two with the bottom part still in the block. Had to have it towed to a Ford dealer; $150 to remove the plug plus $29 parts and labor. Plug has a design flaw that Ford has known about since at least 1997. For most Triton egnine owners, you find out the hard way when the engine light comes on or when you go in for a tune up; minimum cost $150; for every broken plug - $150 to remove it; if it can not be removed, the engine and/or front end has to be pulled (per Ford repair bulletin) to remove the head(s). Cost: $1,000 - $3,000. Most vehicles are "out of warranty" by this time which Ford then dismisses as not a "warranty problem" but rather a "service issue". the dealerships make a killing off the customers because of an inept, incompetently designed spark plug. Ford has known about this problem since the late 1990S but refuses to do anyting as the ntsb has done nothing to issue a recall. Duh

- Garland, TX, USA

The contact owns a 2005 Ford F150. While driving approximately 20 mph, the check engine light illuminated and the vehicle was taken to an independent mechanic for inspection. The mechanic informed the contact that a spark plug had fractured in the head of cylinder five. The manufacturer was contacted and stated there were no recalls for the failure and suggested the contact keep all receipts for possible reimbursement if there was a recall in the future. The vehicle was not repaired and the VIN was not available. The approximate failure mileage was 100,800.

- Garland, TX, USA

The contact owns a 2005 Ford F150. While driving approximately 35 mph, the vehicle stalled without warning. The contact was able to maneuver off the roadway and shifted into park. He was able to restart the vehicle after several minutes. The failure recurred approximately five times and the vehicle was taken to both an authorized dealer and an independent mechanic who were both unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 40,000. Updated 03/24/11 updated 04/05/11 updated 04/05/11

- Springfield, OH, USA

I own a 2005 Ford F-150 which I received a letter from Ford stating that my fuel injectors were given a defect only extended warranty to 150,000 miles. I have had a few injectors replaced since the letter because of defect..I.e white smoke from exhaust and stutter of engine while driving. Right after my last replacement of a fuel injector my catalytic converter was giving a bad odor..afterwards I had a diagnostic checked and the outcome was a bad converter. After several forums I have read I have noticed that several....several.. people have catalytic converter problems after the replacement of fuel injectors..some even having two or three replaced within just a few thousand miles and after having another fuel injector replaced. Is the fuel injector problem a problem for the converter..its a big coincidence that so many have had the same problems after replacing defective fuel injectors..

- Crossville, TN, USA

The contact owns a 2005 Ford F150. The contact stated that the vehicle exhibited an abnormal grinding noise from the engine whether the vehicle was parked or in motion. The vehicle was taken to the dealer but the mechanic was unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 105,000.

- House Springs, MO, USA

While driving vehicle at any speed from 10 mph to 70 mph the truck will go into safe mode (limp-home mode) going down to 5 mph and losing all power steering. When diagnosed it is the throttle body control to me this is a safety issue what happens if I am driving 70 mph on the highway and it goes into safety mode and I lose all power steering. Does someone have to die before there is a recall on this"?" it will cost me around $1000 to fix per brondes Ford in toledo Ohio and I am told Ford has 2 or 3 vehicles a week come in for the same problem. To me this is not standard maintenance.

- Toledo, OH, USA

Attempted to have spark plugs changed in accordance with vehicle maintenance manual at 100,000 mile. While this was being done 3 factory installed motorcraft spark plugs broke off. As a result I was charged a total of almost $700 for the removal of these broken plugs. The dealership technician informed me that 100% of all 2004-2007 F150 trucks that have the plugs removed as required at 100,000 miles have plugs that break. Ford nor the dealership would cover the cost of this defective product and defective Ford design.

- Pontiac, MI, USA

2005 F150 just dies without any warning. Driving down the hwy and just dies. It happens frequently, just dies, it always takes a few tries to get it restarted. We were told that the throttle body needs to be replaced. We know at least 4 other familys that also have 2005 F150's and they have experienced the same problem. My co-worker has hers in the Ford shop right now and they are charging $1300 to fix it. It seems to me that with all of the complaints this should be a safety recall and replaced by Ford co.

- Munford, TN, USA

Spark plugs breaking off in engine head because of poor design. Just happened to me and after looking around the internet it has happened to a lot of people and now the service department of my local Ford dealership says it common and now they are charging me becuase they broke it and its common.

- Ephrata, PA, USA

The contact owns a 2005 Ford F-150. The contact stated that the vehicle stalled without warning. The failure was intermittent. The contact called the manufacturer who stated that someone would inspect the vehicle. There were no warning lights prior to the failure. The failure mileage was approximately 71,000 and the failure mileage was unknown.

- Novato, CA, USA