Every problem in your car needs to be addressed immediately to avoid further damage in the other components as well as to prevent the risks of accident from increasing. Just because fuel tank problems are not very common doesn't mean you can take them for granted. It is important to take note of the issues that may arise with a faulty fuel tank and the problems that causes them.
If you notice a leak in your gas tank on one of your inspections, this could be a sign of a rusting tank. This usually occurs on the tank's exterior under the straps that keeps the tank in place and holds it to the body frame where moisture is most likely formed. If the rusty part isn't too big, using sealing putty after thoroughly removing the rust from the gas tank can solve the problem. Another possible cause of leaking in the gas tank is a fracture at the fuel return lines. Problems like this would require replacing your car's broken fuel return pipe assembly with a new one.
Although some cars have design flaws that greatly affect the process of properly filling up the fuel tank, this problem could also be caused by a failure in the vapor venting system inside the tank. When pressure builds up as liquid rushes into the tank, it becomes hard to put gas in the fuel tank. This problem usually occurs on most modern tanks with a different kind of vent system. Another possible cause for this problem is a damaged tube or crushed gasoline. That is why it's important to pay close attention to your car's fuel tank to avoid the hassle of slow gas flow.
Car issues like rough idle, stalling, premature fuel pump and fuel-injector failure, and loss of power may also be caused by problems in your car's fuel tank. Fuel contamination is one of the possible culprits for these problems which can be solved by removing the gas tank from the vehicle and flushing it of its impurities. Meanwhile, if you experience flaking in the inner lining of your fuel tank and clogging in the fuel line, filter, and pump, this could be caused by the amount of biodiesel used in your vehicle.