The transmission fails to shift from 2nd to 3rd gear at the proper time which results in the car stuttering later as the problem worsens the car starts hesitating to accelerate and then hard shifts which jolts the car. This problem progressively gets worse with incidents becoming more frequent and with harsher jolt that feel like your car is being rear ended. Permanent damage will occur. Since the problem occurs at lower speeds it could be hazardous when pulling on to the road from a parking lot or crossing the road to and home or place of business and when accelerating from a stop light.

- Greer, SC, USA

My car has been making a weird hum/grind/low pitched roar noise for quite some time now. I took it in, it will cost 1,800 dollars to replace my power steering rack. But- apparently you cant just buy the rack, you must buy the whole kit (motor, tie rods, rack, clamps, you name it). Because its been redesigned!...I wonder why. Yet there is no recall. Fyi- if I didn't fix, the power steering would have soon failed, leaving me stranded.

- Tulsa, OK, USA

On the highway with my little girl in the back going 65 mph, then suddenly the car went limp, lost all power. I barely made it the shoulder. I was so scared I took my daughter out the car and stand her on the far side of the road. The car was idling very rough, with the service engine wrench on. I had it towed, but I could have saved some cash because after restarting the car it ran fine. The dealer said they could not find anything wrong ' no error code, they test drive it and could not duplicate the issue. Turns out if you shut the car off it clears the error code, how stupid is this! who is going to keep the car running while getting a tow. I drove it for about a month then it happen again, and sure enough on the highway again. I took it back to the dealer and from my research on the web I told them to change the throttle box, ' let's hope this fix the issue.

- South Jordan, UT, USA

The contact owns a 2010 Ford Fusion. The contact stated that while driving approximately 70 mph, the vehicle decelerated independently. The vehicle was taken to the dealer twice for diagnosis of the failure. The technician was unable to diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The VIN was not available. The approximate failure mileage was 62,000.

- Battle Creek, MI, USA

Driving down the freeway at about 65 miles per hour when the car dies and starts a violent shake. Luckily there wasn't much traffic and I could pull off to the side of the road with my three kids, if it would have been busy there would have been an accident. I have read alot of complaints about this problem with the 2010 Ford Fusion is it going to take a couple deaths for them to recall this car for the problem. It has happen to me three times now once when I was going about 35. I think Ford needs to recall these vehicles and fix them before somebody gets killed if they haven't already.

- Murrieta, CA, USA

My car has been constantly shifting out of gears when driving. It happens whether I am going 10 mph to 60 mph. The car will slow down, jerk back, than catch up to gear (automatic drive). I brought the issue up tot the dealership after purchase of the used auto ($20K) miles and they indicated that there was nothing wrong. At $35K I was driving down my street going 20 mph when the car jerked rapidly and shut down. I was stuck in the middle of the street with the car failing to restart. The transmission light (wrench) came on and I was stuck trying to figure out what to do next. I finally got the car to start up again after 3 tries and I was able to get into work but took the back streets instead of the highway. All of this happened after I had the car at the dealership the day before and it passed the 120 point inspection. I actually printed off all 306 complaints on this website regarding this issue and told the dealer what to fix as I did not want to get any run around. The dealer took it out on 3/20 and the car did the same thing to the service team and luckily they were able to witness the critical error. They agreed to fix it but are now trying to stick it to me. The car was under 36K original warranty but the car was originally purchased on 3/5/2010 and the incident happened on 3/18/2013. The dealer told me I was two weeks pass the warranty so I was out of luck. I fortunately bought the extended warranty and they are now trying to make me pay the $100 deductible which I am fighting.

- Cleveland, OH, USA

While stopped at a light, the car stalled and sputtered. A wrench sign lit up and the car died. I restarted it and ran fine. Happened again a few days later, so I took it to the dealer. Was there the whole day, but they could find nothing wrong with the car.

- Riverdale, MD, USA

When I pulled out of my drive way this morning, when the car was changing from 1st-2nd gear, it slammed into 2nd so hard it whipped my head back. The car never lost power, and when it found 2nd it keep going keeping speed. If there had been a car behind me, I probably would have been hit, because when it slammed into gear my reaction was to let off the gas as the car made a sudden jerk.

- Hampton, VA, USA

Driving interstate hwy at 65 mph, vehicle lost power. Traveling in the middle lane, the vehicle slowed in rush hour traffic to 5mph. I said my prayers due to the heavy traffic, thought this was the end. Was able to coast to the shoulder and called for a tow truck. Dealer reported that the throttle body had failed. Failed part replaced and vehicle is working normally.

- Bulverde, TX, USA

Stopped for light started to go car started jerking and rough idle could only go about 2-4 mph was able to get to side of road turned off fro several min. Than restarted ran fine for about 8-10 miles than same. Got it dealer they replace throttle body.

- Minneapolis, MN, USA

Our 2010 Ford Fusion lost engine power while accelerating up a hill in morning rush hour traffic on a multi-lane super-highway in atlanta. Our car was in one of the left lanes and was able to limp across several lanes to the right shoulder with the assistance of a helpful truck driver. Cars were racing around us on both sides until we could flag down assistance. The experience was horrifying. The car was towed to the Ford dealer who diagnosed the problem as a stuck throttle cover. A repair was made under warranty, and we were told the car was safe to drive.

- Dunwoody, GA, USA

My vehicle lost acceleration while driving and shut off on me three times. The third and final time I was on a highway and almost got rear ended. I had the car towed and serviced at the nearest authorized Ford dealer to find out I was out of warranty. Paid for a throttle and it's installation left very scared and upset.

- Houston, TX, USA

Traveling approximately 45 mph during rush hour traffic the 'wrench' light illuminated, the vehicle lost power and the engine began idling very rough. Fortunately I was able to get out of traffic and pull off to the side of the road. The engine was idling very rough ~900-1200 RPM and was unresponsive when I pushed the gas pedal (almost to the floor). Once stopped I turned the engine off, waited approximately thirty seconds and restarted the engine. The warning light was extinguished and the engine operated normally. I accelerated back to traffic speed and within five minutes experienced the exact same thing. I pulled over, turned off and back on the vehicle and again the light extinguished and the car ran normally. Two more times within a thirty minute period the vehicle experienced the same thing. En route to the Ford dealer the next day I had the same thing occur three additional times during the ten mile drive to the dealer. Each incident was identical. The dealer found no codes (since the light had cleared when I turned the car off and on) and hooked up an incident recorder. I experienced the same shut down three additional times and captured them on the recorder - upon return to the dealer the next day they still did not have any codes to investigate (?) the dealer 'thought' they knew what the problem was (even though they "hadn't seen anything like this before") and replaced the throttle body. Since replacement I have not had any additional mishaps. I'm glad I did not cause an accident due to the sudden loss of power but, as I explained to the dealer, I felt that the vehicle was unsafe to drive. I hope they fix this issue asap - there needs to be a recall and soon!

- Akron, OH, USA

Driver was going 35-40 mph and suddenly experienced a severe loss of power as if the car transmission was put in neutral.was a scary experience!! had to put on emergency flashers to keep from getting hit from behind.car was driving very slow and then after a period of time, full power came back on.

- Pikesville, MD, USA

Read in paper that you were looking at Ford throttle body. I was in fast lane on I-66 on a Friday afternoon. Suddenly car stopped. I was lucky there was room on left apron to pull off. Car restarted when I tried--went 1000 feet and stopped again; now in right lane and pulled off. Knew there was an off ramp 1/4 mile ahead and limped on apron with cars passing. The entire situation was very dangerous in my estimation. When restarting, it was hard to tell if auto was running or not. When restarting auto backfired etc. Prior to this incident had reported to Ford dealer that transmission sometime "clunked" when I put auto in reverse in the morning. They found no problem. Have not had this problem since I paid to have the throttle body replaced.

- Moneta, VA, USA

My wife was turning left into a parking space in a parking lot at 2mph or less when the vehicle suddenly accelerated at high rpms. Our vehicle slammed into the vehicle to the right of the space my wife would have entered. Heavy damage was caused to our veh. And to the parked veh. My wife was unsure if she had caused the acdt or if it was a mechanical defect. Because of the very heavy and rapid acceleration, I didn't think it in any way was driver error. After it was repaired, our 2010 Fusion was checked out by a Ford dealer and nothing was found amiss. A year later in Nov. Of 2012, I was driving the car at approximately 50mph when the engine suddenly revved up about 150 to 200rpms. This didn't cause any great acceleration but, considering my wife's experience, I immediately shifted to neutral. Just as I got into neutral, the engine revved up to 2500 to 3000rpms. Had the car been in drive, a collision could have happened or I could have lost control. Ford was contacted, car inspected, again nothing wrong. A service writer tried to tell us that the rubber floor mat was on the accelerator pedal. The mat doesn't gain weight to suddenly depress the pedal all by itself! Ford's great lakes regional manager was not very forthcoming-she wasn't apparently aware that there were youtube videos of 2010 Fusion owners filming their dashboards as their cars did the same as I have described above. The car is being driven regularly but both of us have a hand on the gear shift alot of the time. Considering our experiences and the youtube postings, I think Ford is trying to avoid an expensive recall. Didn't Toyota use the floor mat excuse for years?

- Arden Hills, MN, USA

Driving down hwy at 45mph and it felt like the engine just stopped. Foot was on the gas but could not do anything but coast off the side of the road while trying to avoid traffic. Stopped the car and shut it off. After a minute it started and was running fine for about a mile and the same thing happened again. I was able to get home safely by switching gears manually. Took I to the dealer and I was told the throttle body ha to be replaced. Even though I paid for the extended warranty and I was we'll within the 5year 50,000 mile power train coverage they still told me the throttle body is not part of the power train and I had to pay $100 deductible.

- Murrells Inlet, SC, USA

On Feb 13 2013 I was driving and the car nosed over, slowed to approx 8mph, with engine surges of up to 1500 RPM, after several restarts it ran normally. On Feb 17 2013 it did the same exact thing, I stopped and restarted the engine several times in the 40 minute drive of 3 miles back home but that did not help. After the car set for several hours it started and ran correctly. Research on the internet showed hundreds of the same problem and replacing the throttle body corrected the trouble. On Feb 18, 2013 I took it to the Ford dealer and from only my description was told that the throttle body was the problem, they had 3 in stock and my three year warranty has expired on Feb 21, 2013, less than a month out of warranty and it would not be covered so I drove the car back home, I called a different Ford dealer who sold me the throttle body at a discount. It took me about ten minutes to install the throttle body, and the car is still running as it should.

- Tremont, IL, USA

I have had this problem at various intervals since February of 2012. My Fusion would stall an would not accelerate when I left from a stop sign or a traffic light, the vehicle would not go above ten miles per hour an the wrench light would come on my instrument panel. I would have to get off the road an cut the car off then restart it. The car would act like it had flooded an lurch an jerk, when before I would have it come to a complete stop. I took it to the dealer I purchased the car from an I told them about my incidents of the same type each time. They could not locate the problem until on June 30,2012 where the same problem happened to me an I drove the vehicle directly to the dealership. They were able to diagnose the problem as a faulty throttle body. They told me I must have been using some dirty fuel since they said the throttle body looked black inside of fuel. I had used exclusively 93 octane fuel into my vehicle. I had purchased a extended warranty when I purchased my vehicle from preston Ford in which they told me when I first took the vehicle there with the same recurring problem, they said it was covered under the warranty. It was then they told me the warranty did not cover that part. I had to pay for the faulty part with a total bill of $593, along with other items I had for this service visit. I have not had a problem since this work was done on my vehicle. They did not tell that Ford had issued a technical service bulletin on this problem that was known by the dealership, but I had to pay for this to tell me that I had one of the vehicles that were within this bulletin.

- Cambridge, MD, USA

While driving on the freeway at 65 mph. The engine lost power as the engine light and wrench light went on. Pressing on the accelerator had no responsive. I had to navigate freeway traffic with no engine power to get off to the side of the road. As I came to a stop the car jerked a bit before I put it in park. I turned it off and let it sit for a while. After turning the car back on I got back on the road, only to have it happen again a few miles later.

- Goodyear, AZ, USA