2014 Mazda Mazda3 Fuel System Problems

Gas tank is leaking from the TOP. I could smell gas after a refill (and refilling a portable tank) that I thought must have been a spill I hadn't noticed, and the smell faded. But then it happened again at the next refill, and I knew it wasn't just a spill. Brought it to our trusted mechanic who said that the TOP of the tank was rusted out (wow!)(so, not from road salt) and needs to be replaced. Not cheap, but worse, I'd been driving around in a very hazardous situation that Mazda knows happens. No warning lights, no recall. Thanks, guys. Here's a thread about this being a common issue: https://www.mazda3revolution.com/threads/2014-mazda3-fuel-tank-replacement.245797/

Gas tank is leaking. According to the records the service recall has been repaired (via a previous owner). However, what started out as fumes is now definitely a leak and the dealership will not repair under the recall a second time.

Noticed strong smell of gasoline when the car was parked. Took it to an independent service dealer who diagnosed leaking fuel from top of the tank. Gas tank was removed and replaced. Tank cost was $380.00 plus repair shop labor/supplies cost. See attached invoice. During a recent online search for this vehicles current book value I noticed there was a manufactures recall issued for this same problem, that I paid to have repaired. I never received any recall notice for a leaking gas tank problem for my vehicle.

The contact owns a 2014 Mazda Mazda3. The contact stated that while parked, the vehicle had smelled gas fumes in the vehicle. No warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the failure was due to a plastic fuel pump module in the gas tank had corroded and the seam of the gas tank had leaked. The vehicle had not been repaired. The manufacturer was made aware of the failure and determined that the VIN was not included in a recall. The failure mileage was approximately 158,500.

The car has a smell of fuel when filling the tank and for a long period following. My mechanic tells me the surface of the tank has decayed and that it will cost $1600 to correct. I don't have the $1600, so he told me to fill the tank only halfway, which seems to have solved the issue of the fuel smell. I can't understand how a fuel tank could decay and believe Mazda should be responsible for something that is poorly designed or improperly manufactured.

The gas tank leaked gas due to corrosion on the top of the tank at the fuel pump. Strong smell of gas fumes evident and puddling of gas under the car after being driven. The problems was diagnosed at McGrath City Mazda in Chicago and also by my local garage JDH Auto repair in Prairie du Sac, WI. The fuel tank was replaced, along with the evaporation cannister. Until their was actual leaking of gasoline, there were no signs, lights, warnings of this problem. I have retailed the old tank if you wish to inspect the tank. This car was washed on a regular basis and did not show other issues from corrosion.

Fuel was leaking from car.

The contact owns a 2014 Mazda Mazda3. The contact stated that an abnormal odor was detected while the vehicle was turned on or off. The vehicle was taken to an independent mechanic, where the failure was related to NHTSA Campaign Number: 16V684000 (Fuel System, Gasoline). The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 115,000.

- After filling up the gas tank and putting the cap back on, there is a distinct smell of gasoline until some of the fuel is used up. In summary, it appears to be spilling or leaking fuel/fumes when we fill up the tank. -This is a problem when parking our car in our garage and we are concerned that it could cause a fire. - We have not yet confirmed this with a dealer or independent service center nor have we had any other entity or person confirm this. - This issue was noticed recently and within the last year or so and without any alerts and/or warning lamps. - We understand that there is a recall on the Mazda3 for model years 2014-2016 regarding the ICV Valve (deformed gas tank) and even though it appears to be the same issue, our vehicle doesn't fall within the recall group. - Please help us determine if this is the same problem as the 2014-2016 model year recalls and if your agency will need to issue a similar recall on this model year.

The contact owns a 2014 Mazda Mazda3. The contact stated that after refueling the vehicle, he could smell fuel fumes inside and outside of the vehicle. The contact stated no warning light was illuminated. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 16V684000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 32,000.

Accelerating on the highway passing a semi-truck when I lost acceleration power. Nearly caused a serious accident at highway speeds. Engine light then came on. After the incident the car's engine would stutter when accelerated above 2000rpm. Was able to bring it to a local mechanic who diagnosed both fuel pumps as damaged and replaced. Part was not inspected by police or insurance as it did not lead to a crash.

I thought I smelled gasoline when sitting in my car. I got out and inspected all around the vehicle, discovering that gasoline was leaking underneath. Both the hazardous fumes and the potential for a fire in the vehicle put me at risk. The loss of fuel on public roads could have resulted in danger to anyone behind me on the road due to the fire hazard and potential loss of traction before I noticed the problem. I immediately brought the car to my mechanic's personal shop (he is also a master mechanic at a local automotive dealership). He confirmed that the leak was gasoline and diagnosed the problem as a rusted seam near the top of the fuel tank having ruptured, allowing the leak and filling the cabin of the vehicle with fumes. I knew that the local Mazda dealership would be unable to repair this promptly, if at all, since they had just fixed the exact same problem in my mother in law's vehicle of the same make, model, and year, and had struggled to get the replacement tank for weeks due to the supply chain problems experienced during the COVID-19 pandemic. Therefore, I paid my own mechanic to source and install a tank, and coat it with anti-corrosion treatment. I contacted Mazda, explained the problem, and demanded they reimburse me, as the car was only 8 years old at the time. The Mazda representative refused to do anything to help me and did not answer my subsequent emails, so I posted about this problem on the [XXX] forum, and discovered others have had the same problem as my mother in law and I. There were no warning signs of the problem other than the smell of gasoline. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

strong gas smell

Had a gas smell in our garage for months, thought our riding mower or snowblower was the cause but realized it was this car. Took to our mechanic and they said it was the fuel leak issue from NHTSA campaign 16V684000 however this car was manufactured in Dec 2013 and the official recall campaign began with cars manufactured the following month aka Jan 2014. We have been unable to get assistance from the dealership or reach anyone at Mazda due to the huge hold times.

Gas smell / leak from gas tank when more than 7/8 full. Seems to leak from the top. AEB frequently says disabled due to high interior car temperature. Even in winter when temperature below freezing.

Gas smell when tank is filled past 3/4

MY 2014 MAZDA3 IS LEAKING FROM A SEAM IN THE FUEL TANK. THERE IS AN EXISTING CAMPAIGN FOR OTHER 2014 MAZDA3S #16V684000 BUT MY VIN APPARENTLY IS NOT CAUGHT IN THAT CAMPAIGN. SEEMS HIGHLY SUSPECT THAT SOME VEHICLES OF THE SAME YEAR WERE MISSED WHEN DEVELOPING THE CAMPAIGN. MY VEHICLE IS ON THE LIFT NOW AND MY MECHANIC IS WATCHING FUEL DRIP FROM THE SEAM IN THE TANK. NOTE THIS IS HAPPENING WITH A FULL TANK OF FUEL, WHEN VEHICLE IS STATIONARY. AFTER PARKING THERE IS DISTINCT FUEL ORDER EMANATING FROM THE REAR OF THE VEHICLE.

PURCHASED AS NEW VEHICLE. FROM THE TIME OF PURCHASE I SMELLED GASOLINE IN GARAGE AFTER PARKING OVERNIGHT. AFTER 1,000 MILES/3 MONTHS THE GAS SMELL BECAME INCREASINGLY STRONGER AND GAS MILEAGE PLUMMETED FROM 30 MPG TO 18 MPG. TOOK THE CAR TO THE DEALER FOR REPAIR. THEY SAID THE SEAMS OF FUEL TANK WERE LEAKING--ENTIRE TANK HAD TO BE REPLACED; NOT SAFE TO DRIVE. *TR