Symptoms of a dirty fuel filter include losing power while driving uphill, problems starting the car, stalling, grinding noises in the engine, the smell of gas fumes and an engine that misfires frequently. An engine that hesitates when the accelerator is depressed can also indicate a dirty fuel filter, especially when this occurs at slow speeds.Continue Reading
The job of the fuel filter is to keep debris out of the gasoline in a car. When a fuel filter becomes dirty or clogged with debris, the flow of gasoline through the car is impeded, and the fuel pump ends up working harder.
Hesitations in the engine are a direct result of the gasoline flow being impeded. This results in abnormal combustion and reduces the engine's power, resulting in the hesitations during acceleration. Stalling occurs when the flow of fuel through the engine is extremely restricted. Problems with starting can also be due to a dirty fuel filter, since an engine requires a certain amount of gas to start the internal combustion process.
A dirty fuel filter can damage the fuel pump if it is not replaced. Replacing a fuel filter is typically a fairly easy task. Fuel filters should be changed at least once a year.Learn more about Car Parts & Maintenance
The smell of gas fumes inside a car can be from exposure to gas vapors and spills, gas leaks, irregular fuel pressure. Or in the case of an old model car, it can be from fuel boiling in the carburettor float bowl.Full Answer >
Several things can cause the smell of gas fumes inside a car, including a leak in the gas tank. A missing gas cap can also cause the smell.Full Answer >
When condensation from water contaminates a gas tank, the most common symptoms are poor fuel economy, engine running rough, stalling or failing to start, and hydrostatic lock. Condensation inside a fuel tank or a leaky fuel filter can contaminate gas that has been stored too long.Full Answer >
Dirty transmission fluid causes problems when shifting gears: grinding noises, stalling or misfiring of the engine and overheating of the transmission. These problems are very similar to those caused by low transmission fluid.Full Answer >