Three Common Fuel System Problems in Automobiles

You can tell if you’ve got a fuel system problem. Your vehicle will be hard to start, won’t start at all, or you’ll have engine performance issues that don’t get better as the automobile warms up. Examples of fuel system trouble include a sputtering or stalling engine, low gas mileage, and an engine that doesn’t respond to your accelerator. TRUE Automotive can service and repair your vehicle’s fuel system. Here are three common problems in the system and a little 411 about how the fuel system works.

The 411 First

You fill your car’s tank with gasoline when it gets too low and the fuel pump draws that gas out of the tank and pushes it through a fuel filter and then into the fuel injectors. The filter protects your engine from sediment by clearing the fuel of debris before it is sprayed into the intake manifold by the fuel injectors. Air is mixed with the gas in the manifold and ignited in the combustion chamber to start your car. These three parts are the ones we replace most, but your fuel lines can also leak or get clogged.

Common Fuel Filter Problems

The most common problem a fuel filter faces is a clog. As we said above, the fuel filter’s job is to trap sediment and debris found in the gasoline to prevent it from entering the intake manifold and combustion chamber. If the fuel filter is clogged or partially clogged, your vehicle’s engine will not get enough fuel pushed through to the fuel injectors and your engine’s performance will suffer.

Common Fuel Injector Problems

Fuel injectors can also get clogged. They use a nozzle to spray the right amount of gasoline into the intake manifold or cylinders. They can be clogged by debris that gets by the fuel filter or, more often, by carbon buildup. When gasoline burns, it releases carbon, and this carbon builds up on the fuel injector nozzles. If your vehicle is idling rough and/or guzzling gas, you might have clogged fuel injectors.

Common Fuel Pump Problems

Finally, the fuel pump can also get clogged or fail. If the pump is clogged in the closed position, your engine won’t get any gas. If it’s clogged in the open position, your engine will be flooded with gas. The fuel pump is electric in newer cars, and the motor can also die. Signs it’s failing include overheating that is transferred to the engine and grinding or whining sounds from the fuel pump’s motor.

Call True Automotive’s auto repair shop in Marietta, GA, to schedule an appointment if you think you might fuel system problems. We’ll find the problem and fix it.

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