Over the past six weeks, I have encountered three events in which my vehicle was accelerating while I had my foot on the brake. The first time, the truck was attempting to pull forward, vibrating, and revving the engine while I was stopped at a light.I thought it was a fluke or an error on my part and disregarded it. The second and third time, I was trying to slow down for the light with vehicles ahead of me. Instead of stopping as I was depressing the brake, the engine began to rev and pull forward. I depressed my brakes to floor and the truck stopped but the engine continued to rev and attempt to pull forward with the brake on. Ford company and my dealership, of course, denied any problems even after I cited several cases in which this occurred with other cars. They said sometimes sensors go out and they should not be responsible for it but were happy to do a diagnosis for $100. I see several complaints regarding the electronic throttle control systems compared to the new brake override systems and am totally unnerved that Ford will not take responsibility for this. I am concerned about driving the truck with only 45,000 miles on it. I fear that any moment, my truck is going to accelerate into another vehicle while my foot is on the brake. I will never buy a Ford again--a total disregard for consumer safety.

- Rio Rancho, NM, USA

The contact owns a 2007 Ford F-150. The contact stated that while driving at approximately 55 mph, the vehicle decelerated as the check engine warning light illuminated. The failure recurred numerous times. The vehicle was taken to a dealer where it was diagnosed that the camshaft phaser needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 100,000.

- Genesee, MI, USA

3 out of 8 spark plugs have blown out of head ih motor. This seems to be a common problem after researching several other makes and models of all Ford vehicles. I have searched for recall information from faulty design with no luck.

- Tulsa, OK, USA

Driving on a posted 40 mph county road approaching a stop sign. The vehicle made a loud noise from the engine compartment and lost 80% power. Took it to a local mechanic and they explained that the spark plug(s) were bad and the tune up would be $500-$800 depending on "if" one or all of them broke during removal. One had already blown out during aforementioned incident. I understand that this was a problem for a lot of Ford vehicles during the years 2004 thru 2008. I believe this should have been a recall repair. Thank you.

- Mcdonough, GA, USA

Water leaking from intake manifold coolant crossover line. Crossover is an aluminum pipe that connects to the plastic intake manifold. When manifold started leaking coolant, 1 & 2 spark plug holes filled with water causing spark plugs to short out and stall the engine at low speed. Per Ford the only repair is replacement of the complete intake manifold at a cost of over $1200. This is a common problem with this engine. I have seen many complaints on F-150 forums via the internet of people having the same problem. My truck has only 105000 miles on it.

- Cedartown, GA, USA

On October 31 2014 while visiting family after 350 mile drive my 2007 Ford F-150 XLT super cab 4X4 4.6L motor made a noise similar to an explosion that was felt in the cab by all passengers. Right after the explosion the truck lost power and sounded like an exhaust pipe had fallen off the motor. There was a strong smell of gas and exhaust but truck was drivable. Brought truck to dealership and was told that 2 spark plugs has blown out and one of the two had taken the threads with it. Advised me that this was very rare and I had to options to fix. One was to re-thread and replace all spark plugs for $899. Second was to replace head at $2100. Told dealership to do the lesser option. Had to leave truck there and obtain a one way rental for 5 people at $300. Have now found out that its not rare and may not be fixed even after the repair. I am glad that this happened on a surface road at low speed and not on the hwy.

- Los Alamos, NM, USA

Cool wet morning (65F) but not raining at the time. Drove down hill to stop sign at 35mph. After slowing to about 5mph, truck suddenly surged despite braking hard enough to engage antilock brakes dragging the truck into the intersection. Less than a mile later, still going down hill at 25mph slowed for another stop sign. Engine surged again to 3000rpm. Drag into intersection was avoided by shifting to neutral. Surge dropped spontaneously within 10 seconds.

- Columbus, OH, USA

Blew #2 spark plug and coil out of head.

- Killeen, TX, USA

I bought this truck new. At approx. 22000, I was driving at approx 50 mph when the engine started a shake, rattle and roll. In less than 1/4 mile, the engine locked but I was able to coast off the highway. It was late Saturday but after 2-3 hours found a tow truck and had it towed to the local Ford dealer and left it their back lot. I was told the next week that Ford wanted the engine back intact. After around three weeks and $800+ for a rental I got the trick back with a new engine. 2800 miles later, the exact same thing happened. My warranty was out on time but Ford did replace the engine again but I was out the rental car--again $800+. this was some 6 months back and all is ok for now but I was told if the engine blows again Ford will not cover it. And on the 2nd replacement (3rd total) engine that pistons were in the oil pan. 5.4 engine.

- Mcminnville, TN, USA

Repeated failure 2007 Ford F150 ignition coil.have replaced 3 ignition coil assembly's in my Ford F150. One in "2011" and 2 in 2014. ( do not remember the exact date of first, was about 2011 ) searched the net and read time after time Ford F150 owners with the same issue. Seems Ford must know about issue, but not fixed or recalled. My 2014 ignition coil repair cost $94 each one plus labor. ( X3 so far ) this year, I wanted 3 months with the ignition coil issue to get the time and money to have Ford fix.

- Pine Hill, NJ, USA

We purchased the vehicle new. Before it was a year old, we heard a knocking sound. We were told it was normal. After a couple of years, the knocking got louder, took it to the dealer ship, they said it was normal. As the years passed, we asked other dealerships, repair shops, and there was never a recall. We were always told not to worry about it. The knocking sound got louder, the engine was bogging and today it is in the shop for a new engine and we have to come up with $6,000. There are thousands of complaints like mine. Why is there not a recall"???"

- Iron River, MI, USA

I was driving down the road and I heard a loud popping noise so I pulled off on the side of the road and turned the truck off. I then saw smoke like the engine had overheated but in a matter of seconds flames ignited and I quickly got out of the vehicle and called 911. As I was speaking to the dispatcher there was a loud explosion and the whole front of my truck was engulfed in flames. By the time the fire department arrived and put out the fire my hood was totally burned up the engine is burned up and melted and the windshield and driver's side window blew out and the dash and front interior is burned and melted. I am lucky that I was able to get out in time because it happened so quickly. I am also glad my 10 month old son was not with me on this day.

- Roanoke, VA, USA

Stopped at a light and truck started to shake violently then died. Truck restarted and drove to a mechanic. Was told that the error codes stated the cam sensors and every error for them came up. He pulled up a blog and said that alot of people are complaining about the exact errors. Some did a quick fix to sell others need a new motor. I called Ford and they say a memo went to dealers but until more come up they won't / can't help. Was told if I get it fixed save the receipts. Called the dealer and possible $6,000-$7,000 for new motor.

- St. Charles, IL, USA

Noticed severe gas fumes inside cab, as well as outside cab. Raise hood, started engine and noticed fuel leak about the size of a pencil streaming out from hose that is attached to fuel rail. Removed fuel rail the next day and found a split in the hose under the cloth protective outer lining. Is there a recall for this particular failure. ?. this could have been a serious situation if it would have been a longer distance road trip. Failure P/N 5C3Z97F792da fuel rail.

- Mulberry, FL, USA

In starting the vehicle, there was a loud bang, and then clattering. It turned out to be a blown spark plug. The threads on the engine head and spark plug were stripped/smashed. The coil was coil was also damaged beyond repair. Both mechanics I saw to fix the problem were well aware of problems with blown spark plugs in the F150, and on-line research indicates this has been a problem with the F150 since 1997. The spark plugs were factory installed, and I was sill under the mileage recommendation for new plugs. Very disappointing that Ford would not step-up to acknowledge that this is their problem and pay for the fix. The Ford corporate headquarters rep I spoke with claimed to have never heard of this problem before.

- St Louis, MO, USA

My 2007 Ford F150 has a major problem, when coming to a stop at a stop sign or red light, the engine surges forward the RPM gauge will fall to 400 RPM and without warning it surges to 1000 to 1200 RPM making it hard to control the truck, I'm very disappointed with Ford, I am a repeat Ford customer, but with this problem with my F150 it has only 35000 miles Ford will loose me as a customer for sure.

- Houston, TX, USA

There is a knocking sound coming from the motor already replaced the catalytic converters and O2 sensors and the sound is still there with the check engine light on.when the truck gains some speed the truck shakes don't feel real safe driving it long distances.

- Fort Myers, FL, USA

I have a 2007 Ford F-150 with a 5.4L V8 engine. There was intermittent rattle noise (knocking) and rough idle. After the vehicle warms up and I come to a stop or slow roll the vehicle begins to shake and a loud knocking noise is heard in the engine. This is a known issue with this engine and Ford denies it is. I had it fixed in September 2011, which was covered under warranty with 49,934 miles. The vehicle has started to do the same thing and currently has 82,000 miles on it. I was informed by both the dealer and Ford Motor Company they will not repair under warranty even though this was prior issue during the warrantly time. Dealer wants approximately $300 to inspect to determine the extent of damage to the engine. This is safety issue as it happens during slow speeds or idle at stop lights and only way to make it stop is to shut off the vehicle or rev up the rpms. I believe the tsb was aware of this issue in 2010 but the manufacture has not notified consumers. This is a manufacturer defect and Ford motor needs to repair or replace the engine at their cost.

- Omaha, NE, USA

I was driving threw town last June & all the sudden my check engine light came on & truck started running really rough & acted like it was starving for gas or fire so I took my truck to a parts store & had code read it showed a miss fire @ #6 cylinder / spark plug it cost me almost $1,200 to get it fixed. That was for all 8 plugs & coils for really needs to fix there design flaw on the 4.6L & 5.4L engine there is no reason a vehicle should cost that much just to change plugs just cause they don't want to fix there mess up to make it more affordable to the public.they say till the NHTSA issues a recall they will ignore the problem with the spark plugs & all the issues that come with them since they changed the motors designs. Thank you conserned consumer/firefighter [xxx] please take some action in this matter. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Mineral Wells, TX, USA

The contact owns a 2007 Ford F-150. The contact stated that while traveling various speeds, the contact heard a loud bang in the engine compartment. Upon inspection, it was found that the spark plug had erroneously ejected. The vehicle was taken to the dealer where it was found that the spark plug coil needed to be replaced. The vehicle was being repaired. The manufacturer was contacted about the failure. The failure mileage was 67,000. The VIN was not available.

- Eureka, MO, USA