Driving down highway at approximately 60-65mph when I attempted to accelerate. Vehicle began to stall/shake and lose power. I was unable to accelerate while the vehicle was shaking. Check engine light began to flash on and off.

- Baytown, TX, USA

The contact owns a 2013 Ford F-150. The contact was driving 35 mph when the check engine warning light illuminated. The vehicle began to shake violently and then stalled. The contact took the vehicle to the dealer where a diagnostic was performed. The contact was informed that the cold air cooler was defective however, a remedy was not available for the defect. The manufacturer was not contacted. The failure mileage was 7500.

- East Dublin , GA, USA

The contact owns a 2013 Ford F-150. The contact stated that while driving approximately 70 mph, the vehicle decelerated and began shaking violently. The check engine warning light was also illuminated. The failure recurred twice. The vehicle was taken to the dealer for diagnosis where the technician stated that the spark plugs would have to be replaced. The vehicle was being repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 10,000.

- Burgoon, OH, USA

We bought our 2013 F150 XLT 4X4 V6 flex fuel at denham Ford in wetaskiwin alberta. We traveled across country to Ontario. We have continued to drive it. Approximately 9000 kms for mileage our truck has steadily lost acceleration power. Going up burlington skyway and garden city skyway (100 km/H major highway) truck struggle to maintain 60 km/H uphill with pedal to the floor! had instrumental panel problems improper display of amount of gas or distance to E. driveshaft constantly clunking and transmission slippage. Ford refused to replace after towing of problems and constant call ins to customer service. Took to local dealer and 7-8 technicians stood round scratching head replaced fuel pump did not make a difference. Ford ask for payment $558.08 we not have funds as all of our money going into gas to repair truck and false reading on panel and Ford refused to help us. We felt used and scared of being rear ended by a semi was not safe. Did diagnostic no codes. Beyond code problem. First known problem in North America...huge lemon.

- Camden, AR, USA

The contact owns a 2013 Ford F-150 ecoboost. The contact stated that when driving at various speeds, the accelerator failed to respond to acceleration attempts as the check engine warning light illuminated intermittently. The contact also mentioned that the vehicle erroneously decelerated when the accelerator pedal was being depressed. The vehicle was taken to a dealer but the technician was unable to diagnose the failure. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 3,400.

- Cottage Grove, MN, USA

I was merging onto the highway while it was raining. In attempting to accelerate to merge in front of a semi my vehicle stated shuttering violently and lost power. I could not get past 40mph. The check engine light was flashing. This was after the truck had been running for two hours. The semi almost rear ended me as I got off the road as soon as possible. I shut the truck off and restarted the engine and it ran fine after that. I took the truck back to my dealer the next day and they could find nothing wrong, not even an error code. The truck has a Ford 6 cylinder eco boost engine.

- Rockford, MI, USA

While making a left hand turn across traffic I floored the gas pedal and all power was lost almost resulting in a crash. The next time was on the highway while trying to pass another vehicle total loss of power. Unable to pass almost rear ended, luckily able to get off the road. Today November 3rd 2013 9:00 am traveling 40 mph on flat ground clear sky about 45 degrees I floored it and the truck did nothing it did shake alittle and I kept my foot to the floor for about 1/2 a mile and it never regained any power. Then I smelled something burning. No check engine lights ever came on and my fuel economy get worst every day. The truck feels like something is dragging it down all the time. Poor fuel economy mixed with unreliability is going to equal disaster. Ford is lucky no one has been hurt or killed yet.the truck will be towed to the dealer in the morning I simply will not risk my life while Ford sits on there thumbs. Fix the problem before someone is hurt!!!!

- Gilberts, IL, USA

My family was driving home from a trip on the interstate in rainy weather conditions for the majority of the trip. On two or three different occurrences, when accelerating to pass or merge, the truck engine shuddered and failed to provide power necessary to accelerate. Never did it completely stall, but there was a noticeable shuddering of the engine and the truck felt like it was riding over rough pavement. I had read about this issue with the ecoboost engine in the F150 (unfortunately after I bought the truck) but had never experienced it until yesterday. When I felt the shuddering of the engine, I eased off the gas and gently reapplied as I had heard about instances of the vehicle completely stalling when pushing the accelerator to the floor. If it would have stalled last night on the interstate, in stormy weather, late at night, it would have been a scary and very dangerous incident. When I called my local Ford dealer today and asked him about service bulletins, recalls, or possible fixes, he acted like he had never heard of the issue before...

- Trenton, OH, USA

Driving new Ford 2013 F-150 with the ecoboost engine. It was raining at the time. I tried to pass a vehicle and it went into limp mode, engine light came on and would not accelerate. This happened again several weeks later and the check engine light stayed on. I took it to the dealership and they replaced #6 spark plug and the catalytic converter. The problem happened again. Now I hardly drive the truck and it stays in the garage especially on rainy days.

- Cookeville, TN, USA

Loss of power under acceleration while driving on I 95, attempting a lane change when power dropped, almost hit by a tractor trailer, pulled over finally and sat for 15 minutes then coasted to my destination. No engine warnings or lights/faults registered. Happened on two more occasions since then. The first time, I took it to my dealer service department and they said they could find nothing wrong. My truck had all the updates they said. The second and third times were on back to back days. All occurrences were during rain driving. The servicing dealer now says there is tsb on the intercooler and they will fix it.

- Waxhaw, NC, USA

When first accelerating early in the morning the truck accelerates suddenly when 1st taking off. This really became a problem when someone stepped in front of me, the truck took off and then I had to stop suddenly. I have reported to Ford and taken it in twice, but they insist no one has had this problem. The motor's RPM fluctuates about 200-300, then settles down.the visibility has been a problem since day one. Ford replaced the wiper blades, but the problem is still there. I have back to the dealer 3 times and all they say is "we can duplicate the problem".

- Pearland, TX, USA

Raining most of the day, I exited I-29 on to St 46, when I tried to pass a car, the engine pretty much shut down and began viborating. The check engine light came on and I had to pull over and let it idle for a bit. This happened again 2 days later on I-90. The dealer said there was nothing they could do. I'm lucky traffic was very light at the time.

- Gayville, SD, USA

I took my 2013 Ford F-150 with the ecoboost engine on a week long vacation down to South Texas (approx. 1200 miles or 17.5 hours one way) it was sunny and warm the entire trip down and the vehicle ran great. However on the way back up to Iowa in was raining as soon as we left and only let up raining for 20 min increments the entire way home. About 5 hours in we pulled off the interstate to get gas and eat. We got back in the vehicle and proceeded to get on the on ramp and return to the interstate. I was going about 40 mph with smooth acceleration when I gave my truck a little bit of gas to merge into the 75mph traffic. My truck did not move, instead it continued to go 40mph and revved up to redline. I had to let off of the gas completely and put my foot back on it and slowly climb up to 65mph. The truck started shaking horribly and my check engine light started to flash. After about 45 seconds the check engine light stopped flashing and the engine stopped shaking. I then could make very slight speed increments. I could not however step on the gas to pass somebody without the truck revving up to redline and shaking again. This happened every time I tried to accelerate quickly the rest of the way back (12.5 hours). The truck runs great until it is introduced to 70mph interstate driving in heavy rain for long periods of time.

- Davenport, IA, USA

3.5L ecoboost engine. Went to merge on highway, pressed accelerator, engine stumbled, pressed further on accelerator, engine stumbled, loss of power, check engine light flashing, violent shaking when trying to accelerate to safe speed on -ramp, light went out after a period of 1 - 2 minutes. Had to pull off side of road to avoid traffic as I was unable to accelerate. This was the second incident for this truck. Ford engineering to my service department that there was no fix but they were aware of the issue.

- Wilder, KY, USA

Interstate, night, raining went to pass vehicle and accelerated when engine stumbled, shuttered violently, and loss power. Engine malfunction light illuminated had to pull over on side of highway due to loss of power.

- Nashville, TN, USA

Shudder/misfire. The misfire occurs at various speeds going uphill or on a flat surface. The truck is currently at Ford dealer ship who is trying to resolve the issue. According to the dealers tech the misfire can occurs at low rpms. New spark plug coils and three sets of new spark plugs have been installed. Apparently it keeps blowing spark plugs.as of yet no solution has been found to the problem.

- Cleveland, TN, USA

While trying to merge into traffic I pressed the accelerator to the floor to get the truck up to the speed of traffic flow.I had no response from the engine for approx 1 to 2 seconds. This put me in a very dangerous situation as I had to get on the brakes hard to slow the vehicle on the on ramp to keep from getting hit by the faster traffic on the highway. In addition the traffic behind me had to rapidly slow down to keep from hitting me.we took the vehicle into the Ford dealership on Monday 30 Sept 2013. This was ruidoso Ford in ruidoso New Mexico. They checked the vehicle and said there was no problem with it and that they knew of no other problems of this type on 2013 F-150 fx-4 pickup trucks. I am still in the talking stages with them about this problem as I feel they have made little effort to solve it and the research I have done indicates that Ford Motor Corporation is aware of this problem. (this problem has happened to me several times since I purchased this vehicle, I thought that after the break in period, as the truck was new when purchased this problem would go away but it has not. Also this truck does not get the gas mileage that it is claimed to get.

- Laluz, NM, USA

Ford F-150 ecoboost loss of power. - trying to pass a semi on the highway when the vehicle stumbled after a downshift, lost power, check engine light flashed, and the vehicle started to shudder. Tried to pull off of side of road but once I was able to get over to the median, the light stopped flashing and the shudder went away as did the light. It was in the mid 60S, I had traveled about 120 miles on the highway at about 70 mph in Ohio on I-75 South of toledo. It had been raining off and on all day.

- Wilder, KY, USA

I purchased a 2013 Ford 150 supercrew cab 4X4 with the 3.5L V6 motor 4 weeks ago. All has been well until the first rain last week. I was on the freeway behind a slow vehicle, I went to pass they vehicle ahead of me on a four lane freeway, and my truck stumbled and lost power instantly as I put my foot down. I had myself, wife, and two children 1 and 2.5 in the truck. It was very scary. The check engine light was on and with no power as safely as I could I moved back into the slow lane of traffic and off the freeway around other passing vehicles. I cannot believe this. I have 2,400 miles on the vehicle. I turned it off. Restarted and no check engine light. It ran fine, I scaredly pulled back on freeway and went 50 mph to my destination. I reported issue to Ford and took truck in. No issue is shown and vehicle is running fine. They kept my vehicle overnight to diagnose no issue. Help! please!

- Red Bluff, CA, USA

I purchased my truck brand new in April of 2013. It is a 2013 Ford F-150 FX4 super crew ecoboost. Monday (9-23-13) I was driving on interstate I-75 at approx. 70mph, I hit the accelerator to pass a vehicle and when I did, my truck dropped down to 2nd or 3rd gear, began to shake violently, lost power (hp), and the check engine light came on. I pulled over, turned off the truck and waited a couple of minutes and proceeded on my drive home. I drove one more hour, stopped in tampa for about two hours, then got back on I-75. One and a half hours later, it did the same thing at 60mph this time. This truck is known for this issue. The intercooler seems to be the problem. My truck now has 9500 miles on it. What's upsetting is that this is the 2nd time my truck has done this. The first time occurred on July 15, 2013 with 5,100 miles on the odometer. My local Ford dealership kept my truck for 4 days and replaced the intercooler, assuring me the problem was resolved (which it wasn't, as my truck repeated the issue yesterday, even with the replacement part). There are have been numerous complaints about this model truck having this issue. This is a huge safety concern, as the first time this happened to me, I could have been hit head-on by oncoming traffic (because the vehicle totally loses all power, no acceleration).

- Fort Myers, FL, USA