2012 Ford F-150 fuel system problems

Filed Sep 29, 2025 · Engine, Fuel system · NC

Transmission Repairs, Molded Lead Frame Components Due to sudden downshift symptoms from sixth speed, gear to fist speed gear while drive higher speeds and low speeds. $1,421.00 Repairs completed 9/10/2025, at [XXX] , [XXX] , [XXX] . [XXX] , [XXX] , [XXX] , knowingly sold this said vehicle as Certified Pre-OWNED 8/27/2025. Now additional concerns, issues have been discovered with said vehicle Monday, September 22, 2025, AM, 1. Oil burning odor inside the passenger compartment. Vacuum Pump Gasket Failure, allowing oil to drip onto the exhaust manifold hot engine parts, components. Valve Cover Gasket Leaks. Safety consideration, due to symptoms, this vehicle is UNSAFE to operate, drive. Technical bulletins TSB’s were stated as issued from Ford Motor Company Engineering Service Operations, Ford Customer Service Division, Mr. [XXX] , Director, Ford Motor Company, [XXX] , [XXX] . Symptoms include Fuel Dilution PCV System TSB 15-00003, addresses fuel odor inside the passenger cabin on EcoBoost engines, this 3.5 L V6 (DOHC) Turbocharged Twin, PCV Valve Calibrations to reduce the fuel dilution in the engine oil. Oil leaks from the valve cover gaskets and turbo seals especially when accelerating and stopping said vehicle. Creating the oil dripping onto hot engine parts, components, causing the strong burnt oil smell within inside the passenger compartment while driving said vehicle. Intercooler condensation, 2011-2012 EcoBoost 3.5L V6 engine experiences intercooler condensation leading to above symptoms and causing stumbling while driving, operating said vehicle and misfiring, which also creates is accompanied by odors within passenger compartment. Safe Concern, vehicle can cause, catch fire due to oil, fuel leak, seapage into related component areas, while driving, operating. Your serious attention please and the costs asso INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 26, 2025 · Electrical, Fuel system · KY

Fuel pump went bad causing the pump to overdraw electricity on the electrical circuit which melted the fuse in the fuse box. The fuse and fuse position was melted beyond being able to use this again. It could have caused a fire in the engine compartment if the circumstances were different. My mechanic reported that he's seen some of these melt the whole fuse box, creating major damage and a major fire hazard. he reported there is a Temporary Service Bulletin out for this issue, so it seems like the manufacturer knows its and issue, but has not chosen to do anything about it.

Filed Jul 10, 2023 · Electrical, Fuel system · AL

Today, My 2012 Ford F150 would crank, but would never start. The vehicle had gas and no issues with the battery. When this occurred today, I found out online that the 2009-2014 Ford F150s have a common issue associated with Fuse 27. In 2015, Ford issued a Technical Service Bulletin (TSB 15-0137) related to this issue, but according to Ford’s Customer Service I was never informed of this TSB because it did not include my truck’s VIN number. None the less it appears to be the same issue as noted in that TSB. After the truck wouldn’t start today, I inspected the Engine Compartment Fuse box. It appears the Fuse 27 which provides power to the Fuel Pump has a commonly known issue of burning up. For my instance today this did appear to be the problem. Fuse 27 was completely burned up on the side of the fuse closest to the engine. Fortunately, I was parked in this instance and my safety or the safety of others was not put at risk, but my big concern is if the fuse were to go out while driving down the road or highway. The sudden loss of fuel due to this common electrical issue could have greatly put my safety and the safety of others at risk. The only warning message that I noticed prior to this issue was a battery warning, but when the vehicle was taken by an auto parts store to pull the code and check the battery, there was not issue with the battery. Note: The battery was replace 5 months ago. I believe this common issue that I and other Ford F150 owners have experience should be investigated further by the federal safety agency to keep myself and others safe when driving or traveling in a 2012 Ford F150 to avoid the sudden loss of fuel to the engine that could result in significant injury or death.

Filed Jul 8, 2023 · Fuel system · TX

The gasses inside the gas tank are building up and causing a farting noise.

Filed Aug 2, 2022 · Fuel system · TN

This is a follow up to a complaint I made on 7-25-2022. Ref# 114-75779. My truck will not start sometimes or it will just shut off while driving. I have searched online and found that the fuel pump fuse in the distribution box is being burned. I have had it checked by two Ford mechanics and they both have confirmed that is the issue. My truck has just shut off 4 times in the last two weeks while driving without warning. The first time was July 22, the next was July 24, 2022. I've been very fortunate to avoid an accident so far. When this happens, I have to replace the fuse before it will restart, so I'm having to keep a pack of fuses with me at all times.The earliest any dealer close can repair it is August 12. This SHOULD be a safety recall with the vehicle just shutting off with no warning at all. Ford makes the fuse relocation kit to fix this issue, so it us a known problem. I'm very concerned as to why this hasn't been a safety recall, seeing the symptoms that are listed in the fuse relocation kit sold by Ford. Today, August 02, my truck shut off twice while driving in traffic and the fuel pump fuse slot was very hot and smoking. I replaced the fuse so I could get it out of the roadway and not cause an accident.

Filed Jul 7, 2022 · Engine, Fuel system · AZ

Our truck suddenly went into "limp-mode," for no reason. When we turned the truck off and back on, it was fine.

Filed Oct 18, 2021 · Engine, Fuel system · GA

Vehicle shut off while driving approx 30 mph making a slight right hand turn. Thus losing all throttle, power steering and power brakes. Vehicle error message is low oil pressure but oil level is checked out to be good. Based on online research the culprit is an overheated fuel pump fuse and a very common issue.

Filed Feb 2, 2021 · Engine, Fuel system · 40,000 miles · FL

In june of 2018 I purchased my 2012 f150 5.0 with 16,250 miles. I now have 40,650. Back in oct of 2020 I began having issues with the trucks engine sputtering, chugging, etc.. When accelerating in day to day to traffic. The engine would run very rough while I sat on the side of the road or in the middle of traffic waiting for the truck to "work through it" or completely die. I'd wait a few minutes, start it back up and be on my way. I can be sitting at a light, it turns green and I take off and it'll act up or even when I'm traveling down the road a car in front of me slows down to turn and after they turn I press the accelerator and it acts up. It throws no codes but I'm a sitting duck out there when this happens due to the extreme quick loss of power. In most cases of this happening I usually don't have enough momentum to get out of the way of traffic causing unsafe conditions for all. Its very random and unpredictable evident by it occurring several times in a week or not at all for several weeks. As soon as this issue began I had the throttle body replaced by my mechanic but it still continued. My mechanic even kept my truck to drive around at different times during two sperate weeks to "re-enact" the issue, but it never happened. Within a day or two of getting it back from him it would happen again. I've been to ford and if your vehicle doesn't throw a code they don't have time for you, "but if there's anything else they can do for you just let them know". This is a hassle, unsafe situation that I've been dealing with for several months now with no one able to give me any answers to fix this. Yes, I've seen and heard the list of everything it could possible be from bumper to bumper. I need a resolution because I've extinguished all other avenues.

Filed Jan 23, 2021 · Electrical, Fuel system · 118,200 miles · KS

#27 fuse located under hood can burn and shut fuel pump down. Requires a fuse relocation kit. From # 27 to using empty #70 fuse holder. While driving or after shutting car off it will not restart. Can happen at anytime. As a result I first replaced fuel pump driver module, master relay to fuel pump also fuel pump before I resolved issue. Because it's a intermittent problem

Filed Jul 10, 2020 · Acceleration, Fuel system · 137,895 miles · TX

Ford refusing to fix field service action transmission molded lead frame extended coverage number 19n01 truck shifted down to second gear stayed stuck. There is a recall up to 150,000 miles I have 138,000 found this out ;local ford dealer screwing me over saying not their issues I founs a the federal safety agency letter saying other wise also a electrical vacuum pump extended repair number 15n05 causing truck to stall going down roead.