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2012 Ford F-150 fuel system complaints

Page 4 of 5: complaints 71 to 100 of 119, newest first, as owners wrote them.

See the summary of 2012 Ford F-150 fuel system problems: which part fails, at what mileage and related recalls.

Filed Sep 12, 2013 · Acceleration, Engine · 2,000 miles · TN

I purchased my f-150 ecoboost, on july 28, 2012. Almost immediately after purchasing it, I have had issues with the engine. Often when it rains, the truck will not start or when it does start, it refuses to go or when it is going, it will not accelerate. When I attempt to pass a slow vehicle, there is no power. The engine boggs down, to an idle. The truck has left me stranded numerous times. I took my family on a trip to miami, florida, during the christmas holiday. On the open road the motor quit. I was able to limp it into a ford dealer, who had to perform extensive engine repairs in able to get the truck running again. While I was driving it back to tennessee, after 3 weeks of repairs, it happened several more times. When I attempt to pass slower vehicles, I try to accelerate and there is no power. It is dangerous, particular when traveling on 2 lane country roads with hills. Often, when I park and exit the truck, there is a strong odor of gas coming from somewhere under the hood of the vehicle. This is a fire hazard. On 2 occasions, the driver's seat has come unattached from the floor of the truck. This morning, I went to take my children to school I was driving and heard/felt thumping and the seat fell back, I was nearly laying on my back, while driving. This has happened twice. This is dangerous and scary, when it happens while driving down the road. The ford customer care representative was very flipped and seemed to be more concerned with ensuring that I understood the terms of the warranty than the safety of my vehicle. I was insulted and humiliated, for suggesting they provide me with something to drive while they corrected the problem. The first time this happened, it took 3 weeks to fix. I bought this vehicle, I should not have to buy another vehicle to drive. To date the best fuel mileage I have gotten is 13.2 miles per gallon.

Filed Sep 5, 2013 · Fuel system, Transmission · 4,500 miles · TX

I put my truck into drive and it hesitates, jumps back and fourth being real sluggish. The only way out of this is to floor the gas and let it push through for about five to ten seconds and then it is done. Which is hard to do when it is time to take my kids to school and I am in a school zone. This is very intermittent, but happens more often than not. If I let the car remain off for more than 15 minutes then the cycle can continue. Sometimes it starts up and drives fine. I notice it is more and more prevalent as the miles climb up. It has been doing this since the beginning and is still doing this. Since around 20000 miles the truck hesitates on the road after driving for sometime. So now it happens whenever it wants to. I have read online that this is a common occurrence that ford knows about, just doesn't admit to or try to fix. My best friend had to trade his truck in because of this problem. This has the potential to be a problem just like the acceleration of the toyotas. This problem happens sporadically but it is more often than not. Now the transmission is jumping when slowing down or speeding up. I was told this is normal, it is just the computer getting used to my driving. I don't make a habit of making my truck hesitate at all. So this is a dumb response that once again, many people online get the same answer. I am nearing my 36000 mark. So I know this is about to cost me out of my own pocket to fix because the ford house will just say nothing is wrong and not fix it. So my question is are transmissions really this cheap and we just move on and accept that craftsmanship in america or do we make ford fix their issue. I have purchased many vehicles throughout my 39 years in this great country. I have never had a car act like this on such a wide scale with nothing being done about it. Please hold them accountable.

Filed Aug 30, 2013 · Engine, Fuel system · 4,900 miles · MA

Attempting to pass a vehicle on the highway, motor lost all power and began shaking. Code came up as engine misfire. Brought to the dealership said known issue, they inspected did not find anything wrong. Since that date has occurred 4-5 more times during wet weather anytime accelerating (passing vehicles, on ramps).

Filed Aug 29, 2013 · Engine, Fuel system · 26,400 miles · AZ

Noticeable lag during acceleration. Most noteworthy incident involved passing at freeway speeds, engine bogged down and car felt like it was about to stall. Have noticed this a few times since as well. We are in monsoon season, have had rain and higher than normal humidity. Have also noticed what feels like delayed and hard transmission shifting. Fuel consumption/mileage seems to be affected. (was getting 17-23mpg when truck was first purchased in march 21013, am now averaging 13-15mpg). Have also noticed vibration/shuddering when accelerating from a stop light or sign, and during downshifting. Vehicle is currently in shop as check engine light came on on 8/26/13. Ford is performing a cold-soak(?) the code that they pulled from the vehicle was indicative of a misfire but they cannot determine what is causing the misfire at this time.

Filed Aug 28, 2013 · Acceleration, Fuel system · 2,000 miles · CO

I have had this problem several times. It seemed to start in october 2012. I was trying to merge into traffic and pushed the gas pedal down quickly and it did not move forward any faster. I I was almost rear-ended by another vehicle because I could not get any speed. It seems that when I push down the pedal very slowly, it will go faster. But when I need the response to be very quickly, it does not respond. I have had this problem when I pull my camper. It will be performing then all of a sudden, I will need to push down the pedal to get power up a hill and again, there is no power. I have taken this to the dealership and they keep saying that there is no problem. I bought this vehicle to pull my camper. It does not perform the way it was touted in their advertisements.

Filed Aug 19, 2013 · Acceleration, Engine · 30,000 miles · NC

When returning from cullowee, nc, I was on the entrance ramp of I-40 east. At approximately 45 MPH, I pressed on the accelerator to increase to highway speed. The engine started sputtering and the entire vehicle started shaking violently. The vehicle never gained speed until I let of the accelerator completely and slowly applied pressure to the accelerator again. The violent shaking of the vehicle and the resulting dangerous merge into traffic terrified my wife, child and grandchild.

Filed Aug 17, 2013 · Acceleration, Electrical · 5,955 miles · GA

While accelerating on an on-ramp to merge into traffic on I-90, the entire vehicle vibrated very hard, the engine then lost power, causing electric to shut down, and uncontrolled deceleration to occur. The check engine light started to flash. Once I released the pressure on the gas pedal, and pulled off the interstate to avoid oncoming traffic, the power returned and the engine responded again. The catalytic converter was determined to be the problem and was replaced. Notified ford regional service manager about concerns that this was a safety issue, he responded that the car was under warranty, and nothing else could be done despite acknowledging that we could have been involved in a very serious accident due to the engine failure. About 2 months later, the same problem occurred, and apparently the computer system was not updated as required. After the update, it worked fine. In december 2012, similar symptoms occurred and the dealership determined it was the coil in engine 4 as the problem.

Filed Aug 10, 2013 · Engine, Fuel system · 33,235 miles · DC

When accelerating and decelerating then accelerating the turbo drops out a severe loss of power occurred.

Filed Aug 5, 2013 · Engine, Fuel system · 8,199 miles · TN · crash

On numerous occasions while accelerating to merge into traffic or to pass a slower vehicle or hard accelerating from a standing stop vehicle shakes and stalls, stays in second gear and has no throttle response, in wet or dry conditions, sometimes completely dying. On one occasion vehicle stalled and died while entering expressway causing me to have to run off road, hitting a sign and dirt bank to avoid approaching semi truck. Engine oil is diluted with gas, has burning smell in engine compartment. We are afraid of engine explosion and fire, burning smell is so bad. Ford has attempted several fixes, but problem continues, now there is a grinding grunt when going into reverse.

Filed Jul 31, 2013 · Engine, Fuel system · 1,000 miles · TX

Ecoboost engine has a terrible miss at idle and blows black smoke at start up. Fuel mileage is also bad due to rich fuel conditions. Ford has replaced many parts including injectors and plugs that were carboned up. Now ford refuses to do anything else until a new calibration program is released mid august 2013. The truck has spent a total of 6 weeks in the shop and is only 10 months old. Bottom line...ford refuses to honor the warranty. They cant fix it and they wont buy it back.

Filed Jul 30, 2013 · Electrical, Engine · 22,000 miles · GA

While driving on interstate I attempted to pass a slower vehicle. After moving over and accelerating - the truck buckled and stalled! I was almost rear ended by an 18 wheeler at 65 MPH! This was very close to being a serious accident involving multiple vehicles. Please investigate and resolve this issue as ford doesn't seem to be concerned about it. Not to mention I took it in for ford to repair the problem and they refused to make the repairs as the vehicle did not show a trouble code. I looked online and there is a tsb on this vehicle by ford for the repair but ford won't make the repair. Not to mention since then the fuel mileage has dropped drastically since the event. This has happened three times now. I am very worried about an accident with this issue, not to mention it going out of warranty and I should not have to foot the bill. This is a design flaw and there are lawsuits all over the internet for this same reason. This is our family vehicle and it losing power is a huge safety issue due to tractor trailers not being able to slow down in time when this happens on the interstate. When the vehicle lost power it drops the vehicle speed to 40 MPH. Not a safe speed for contested interstates. I bought this vehicle in april and spent 40,000 dollars on a truck that's very unsafe but not even dependable. This vehicle has a 3.5l ecoboost engine with an automatic transmission and it also shudders at various speeds with a hard clunking sound during gear changes. Thank you.

Filed Jul 30, 2013 · Engine, Fuel system · 18,000 miles · TX

Attempting to pass on interstate, vehicle bogged down until I took my foot off accelerator, at this time my speed had declined from 65 MPH to 50 MPH. During the past 2 weeks this has occurred other times. This has never occurred since I have owned this vehicle but I am concerned. Once thing that I noticed that this has happened on rainy days. I was called by a friend that bought a similar vehicle make model equipment and motor and mentioned that he was aware of a problem made aware to him by a friend that works as a ford service manager. I have scheduled an appointment with my local ford dealer. They seemed indifferent as to this being a potential problem. I am submitting this complaint because if this is a common problem that is actually happening, ford needs to step up and make this known to other owners to prevent something bad happening involving lives.

Filed Jul 24, 2013 · Acceleration, Fuel system · 1,200 miles · IL

Almost got hit trying to pass a car. When I pulled out to pass and tried to accelerate the motor started missing badly. Ford supposedly did not have a fix until early this year. My eco bust now has 70,000 miles and ford wants me to pay for part of the repair. They have never contacted me to inform me of the problem.

Filed Jul 23, 2013 · Acceleration, Engine · 9,500 miles · TX

While attempting to accelerate from a stop sign turning right my 2012 ford f150 platinum 4x4 ecoboost stalled and would not accelerate for a few seconds. I thought the truck shifted into neutral but that was not the case. This has happened several times within the last 3 months and is getting more frequent.

Filed Jul 14, 2013 · Engine, Fuel system · 9,600 miles · GA

On trip from louisville ky. To atlanta, ga in the rain, truck displayed the shuddering stall caused by condensation in the charged air cooler which gets ingested into engine causing motor to go into limp mode, truck has had two of the three tsb's performed as this is the seventh incident of the same problem since new. When truck goes into limp mode at highway speeds you are immediately at risk from rear end collision.

Filed Jul 9, 2013 · Acceleration, Engine · 13,980 miles · AL

Myself and my wife was traveling on a short four lane road when I attempted to accelerate to pass a slower vehicle. My f150 engine shuddered, I let off the accelerator, the shudder stopped. I then tried to accelerate again and nothing. It was like I was coasting, I had no power from the engine to accelerate. I continued to try and accelerate but nothing. This lasted for 15-20 seconds then it started to accelerate normally. This same type of lost of power has happened 3 times since then. The first two times it was raining heavily, the last two it was not. I have read about the issues documented with the f150 eco boost engine and I am sure this is that problem. Unfortunately I read it after I bought the truck!!

Filed Jul 9, 2013 · Acceleration, Engine · 27,800 miles · KY

I had the tsb (for known surging issue) performed on my truck (2012 super crew 4x4) in may at 25k miles. Everything seemed better, until... This past saturday, I left the house at 5am for a 7.5 hour/ 350 mile drive from home. It was raining continuously for the first two hours. Sometimes hard rain, but it didn't stop for the first 2 hours. I was driving back country roads with mostly 55 MPH limits and rolling hills. Given the weather, type of roads, time of day, etc. I drove gently for the trip, never put my foot in it. Then, when going up a steeper hill that required more throttle than the others to keep my speed up, the truck started hesitating. A lot. More than it ever had before the tsb. And then, just after the hesitation began, something extra occurred that had never happened to it before. The truck started to shudder. This shuddering was akin to driving over road shoulder rumble strips on steroids. As soon as I let off the gas, the shuddering stopped. I gently pushed the pedal, shuddering was back and just as bad. Let off again. It stopped. Pushed the pedal again. It came back. Pushed the throttle once more, and it had stopped. I slowly pushed further on the throttle and it didn't do it any longer. By this time I was down to about 35-40 MPH going up the hill. So I pushed down the pedal almost to the floor. The truck kicked down and accelerated with only slight moments of hesitation. Not once did the check engine light come on. . Thus, I had a textbook case of exactly what the tsb was supposed to solve, but didn't.

Filed Jul 8, 2013 · Engine, Fuel system · 12,000 miles · TN

This write up is for a 2012 ford f-150 truck with the 3.5l ecoboost v-6 installed. Jan, 2013-while driving on I-24e, I was pulling out from the rest stop, just north west of exit 1. I went to pass a 18 wheeler and my truck came "unglued". It practically died in the passing lane when I pressed the gas peddle. It shuddered so hard; I didn't think I would be able to get off of the road before it died. It was missing and shuddering like crazy. I pulled off exit 1, shut the truck down and restarted. It ran ok without that same thing happening on the way home. I had a pretty descent "miss" in 6th gear, running down the interstate at 75mph. Something very strange happened here. It was the first issue I've had with my truck. Although I've noticed recently the mpg is down by 2.0 mpg or more for the last three weeks, and this from refueling at different locations, and the same driving style. Ford applied the tsb to reprogram the PCM/TCM to latest level, installed a deflector shield on the intercooler and possibly replace the drivers side catalytic converter if needed. July, 2013- this weekend while driving on I-65n, I had the same issue happen. The truck now has 17,000 miles on it. I've had the vehicle back into my local ford dealer four times for this issue. The vehicle exhibits this issue when it's rainy and has been driven in the rain for several (50 or more) miles. In heavy traffic this is a very dangerous issue. The vehicle goes into some type of safe mode and will barely limp off the road. If this issue were to occur while crossing a four lane hwy, and sputtered one could be seriously injured or injure someone else.

Filed Jun 29, 2013 · Acceleration, Electrical · 15,000 miles · NY

While accelerating to pass, truck started vibrating,had loss of power and increased RPM on tach truck practically stopped in its tracks first time it's happened. Will be contacting dealer. Definitely could be hazard-as in heavy traffic so I hope ford takes notice before people die.

Filed Jun 28, 2013 · Electrical, Fuel system · 10,000 miles · CA

I obtained this vehicle november 2012 from ford motor company after winning an arbitration case I filed. Reason: the fuel gauge system in the truck it replaced, a 2010 ford, 150, 4x4, was totally inaccurate and undependable. The arbitrator agreed that it was unsafe and granted us the option either to accept a new vehicle with similar features, or a buy-back. Throughout months of processing and several visits to a local ford dealer for unsuccessful repair attempts, ford steadfastly denied any issues existed--that the entire fuel monitoring and measuring system was working as designed--despite the fact that a disinterested third party expert hired by the bbb test drove our truck and concluded it was defective. Furthermore, a google search revealed numerous similar complaints wherein some owners actually ran out of gas owing to an inaccurate fuel gauge reading. Here is a recent and typical example of the problem: a few days ago when I started my truck, "miles to empty" was 225. The fuel tank showed between one-quarter and one-half full. Approximately 10 minutes later, "miles to empty" read 90, and the gas gauge was slightly above empty. I don't really care much about the "miles to empty" feature because I've learned not to trust it; however, when the fuel gauge shows a half tank of gas remaining, then a few minutes later drops to nearly empty, I become concerned--particularly when driving in the mountains where we live, and in snow conditions, thus creating a safety issue. To this day, ford denies an issue exists.

Filed Jun 15, 2013 · Acceleration, Fuel system · 30,000 miles · MD

Traveling on the interstate, little to no uphill or downhill grade, speed approximately 55, attempted to pass a tractor-trailer. Pressed hard on the accelerator pedal, and started the pass. Halfway thru the pass, passing speed 65-70 MPH, my truck lost all power and started shaking violently. I backed off the accelerator, and pulled back in behind the tractor-trailer, then off to the right shoulder. I shut the engine off, opened the hood, expecting to see something bad. No visible signs of anything wrong. Started the engine, drove the rest of the way home, with no other mis-haps. However, the same thing has happened twice more, the most recent being just a few days ago, 6-10-13. Each time this has happened, it has been during an attempt to pass a slower vehicle, during a hard acceleration. I'm typically a very conservative driver, and bought this truck with this engine for both fuel economy and power to pull a trailer. On the first and third occurrence, I was on the interstate, with traffic going the same direction. The second time it happened, I was on a slight upgrade on a 2-lane road, and attempted to pass a much slower vehicle. There was traffic coming from the other direction, but there was ample time and distance to make a safe pass, as the truck in front of me was very slow. Again, halfway thru the passing attempt, I lost power, and had to back behind the truck in front of me. Fortunately, there was sufficient room for the oncoming traffic to move over to avoid the collision. I have talked to my dealer about this, and they were going to research the issue before servicing it. However, I recently saw a report on this issue on the local news station, and realized that my problem is not unique.

Filed Jun 13, 2013 · Acceleration, Engine · 825 miles · OH

After purchasing this 2012 f150 w/ecoboost v-6, I wanted to see how good of gas mileage I could get out of it. I also wanted to break the vehicle in before any hard accelerations. When starting from a complete stop, I would gradually make it up to highway speeds. I treated the vehicle gingerly until I wanted to test the capabilities of this ecoboost engine I had heard so much about. It was a cold january evening and there was no unusual weather (no rain or snow). I had been cruising at constant highway speeds for approximately an hour. The road had narrowed from a 4 lane highway to a 2 lane. I was stuck behind a vehicle traveling just above 50 MPH. I reached a passing zone and decided to test the performance of the engine/truck. I depressed the accelerator to the floor and the engine spit and sputtered. I decided to ease off immediately for our safety. No lights on the dash illuminated as result of this engine problem. After this incident, I have noticed that at cruising speeds, there seems to be an engine miss around 60 MPH while going up a slight grade. I have also noticed that when starting the vehicle, it (engine) does not start as quickly. The key has to be held longer. These problems are a direct result of the damage caused to the engine after the very first hard acceleration.

Filed Jun 12, 2013 · Engine, Fuel system · 9,100 miles · NJ

Loss of power/engine misfires during hard acceleration on mid afternoon friday, june 7, 2013 passing a car at country rd speed or less (was almost at a complete stop while car in front of me turned) in rain. Once I reached destination truck sat until mid day sunday, june 9 when condition recurred on hill climb acceleration in dry conditions. Engine misfire indicator light came on at that time. After pulling over and shutting truck off to check owners manual, the service engine light came on when I started truck back up and has remained on but the issue hasn't recurred. Appt at ford dealer for service on friday, june 14 to check the engine light status and this issue. Engine is 3.5l v6 ecoboost.

Filed Jun 11, 2013 · Engine, Fuel system · 31,004 miles · MD

I was merging on the on ramp to obtain highway speed I stepped on the gas when all of the sudden the truck started to shake really bad. I tried to step on the gas to accelerate but there was no throttle response to the engine as the truck continued to lose speed. Every time I tried to step on the gas the truck would shake even worse. I pulled over to the side of the road so I would not cause an accident. This is not the first time I have experience this shudder in the truck.

Filed Jun 4, 2013 · Engine, Fuel system · 250 miles · NC

During any hard acceleration such as merging into traffic, the truck stalls and goes into a mode of missing and engine stall. This has happened since I have owned the truck and only happens during a hard acceleration. I have had a catalytic converter replaced and the tech at the dealer told me it was know defect with the design of some kind of moisture pump. He said that ford would only fix it when you got to the fourth converter replacement. This is a hazard during merging into traffic.

Filed Jun 3, 2013 · Acceleration, Fuel system · 7,200 miles · NJ

The truck started to shudder and there was a loss of acceleration and power.

Filed May 29, 2013 · Engine, Fuel system · 405 miles · FL

Ford f150 crew cab - lariat - v6 ecoboost engine. Problem occurs when not towing, not engaged in 4x4 mode and occurs randomly in wet, damp and dry conditions. Driving at highway speeds (60) on a 70 MPH highway, tried to accelerate to pass semi truck and truck shuddered and would not accelerate at all. Speed dropped dramatically and we were almost hit from behind. Only method of getting truck moving was to stop on the side of the highway and let the truck sit, turned off for 2 - 3 minutes. It took 5 or 6 of these stops to get to the nearest ford dealership, where a tsb was referred to and it was suggested by the dealership that we continue on our vacation and stop in tallahassee to have a larger dealership take a look. The tallahassee crew updated the computer and provided a report for bill currie ford in tampa, to install a shield of some sort once we returned, as they did not have the part in stock. Bill currie service reported that the shield was already in place when reported a few days later. The truck was taken to bill currie ford a total of 5 times for the same problem with the final time to have a ford tech do the work. The problem persists. Overall the truck is less than it was advertised. I got 18.7mpg with my previous 6.2l f150 and I have yet to get more than 17.8 on the ecoboost. Around town I also get much lower mileage (11.7mpg as opposed to 14.9 with the 6.2l engine. The shudder/loss of power occurs randomly and has resulted in near crashes at least 5 times in the months since we purchased the truck, all at highway speeds.

Filed May 28, 2013 · Engine, Fuel system · 8,000 miles · IN

V6 ecoboost my family and I were traveling in heavy rain on i65 in birmingham, al. I pulled into the far left lane to pass slower vehicles. When I accelerated the truck began to shake violently and rapidly lose speed and power. Several vehicles including a semi had to take evasive action to avoid a collision. The second time was on my return trip home. We were traveling on a two lane road in foggy conditions. We came to an area when the road split so you could pass slower vehicles. I, along with a car following, went to pass a slower vehicle which had moved to the right. When I was alongside the slower vehicle my truck began to shake and lose speed. I had to take evasive braking action to fall in behind the vehicle to my right because they were running out of room. The vehicle following me also had to take evasive action to avoid hitting me. And the car to my right. I took the truck to the dealer when I returned home. They replaced the cac, installed a plastic shield, reprogrammed the computer, and replaced a defective cat as was the recommended repair according to the issued tsb. On april 18th I was traveling on hwy41 in the rain.twice on my trip the vehicle began to shake and lose speed when passing slower vehicles. The applied tsb did not fix the problem. I returned the vehicle to the dealership at the request of ford customer care. They were unable to find an issue. The day the vehicle was returned the second cat went out and had to be replaced. Ford has acknowledged the issue but has informed me that there is nothing they can do at this time. They offered to send me a buy back offer within ten days and after twenty days and several phone calls today they informed me that they are unable to buy back my truck. They also told me that I would have to live with the issue until they (if) come up with a fix. I am unwilling to put my family at risk.

Filed May 28, 2013 · Engine, Fuel system · 16,125 miles · MO

I was about to enter highway from ramp, tried to accelerate engine started missing, loss of power had to pull over to side of road and try again, was almost hit from rear. Conditions, rain.

Filed May 28, 2013 · Engine, Fuel system · 5,280 miles · TX

Vehicle lost power while passing another vehicle. Unable to complete passing maneuver. This is a safety issue that needs to be addressed.

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