Fuel supplies the energy to a vehicle, providing it with the power to function. The burning of the fuel powers the engine. Not all gasoline is equal and some gasoline has more particles and dirt in it. This can decrease the performance of the engine. A fuel filter functions to help trap those particles before they move into the fuel line. If the fuel filter is clogged or dirty, this can have a negative impact on the car and its performance.
One of the earliest signs that the fuel filter may be getting dirty is a decrease in vehicle performance as indicated by a decrease in gas mileage. Gas mileage is a measure of how many miles a vehicle can travel on one gallon of gas. Cars have various capabilities in regards to fuel efficiency, but if a vehicle begins to indicate that it can go fewer miles on a gallon of gas, then checking the cleanliness of the fuel filter is a good initial option.
Other Performance Issues
If the fuel filter is becoming clogged, the vehicle will begin to have trouble delivering fuel to the engine. It may be able to run at low speeds or when idling, but may fail to run at higher speeds. It may also sputter and choke. If this is the situation, the fuel filter needs to be checked and changed.
One of the final indications that a fuel filter is very dirty is that the vehicle fails to continue running. The engine may in fact turn over and start, but because of the clogged filter, it will not be able to maintain that condition, at least without help from the driver who will have to flutter the gas pedal to keep it going. At this point it is imperative that the fuel filter be replaced.
- Photo Credit Hemera Technologies/AbleStock.com/Getty Images
What Are the Causes of Loss of Gas Mileage?
Optimum vehicle gas mileage is dependent on, and influenced by, a variety of factors, including the health and function of a vehicle's...
Signs & Symptoms of a Clogged Fuel Filter
A fuel filter is necessary to prevent dirt and other debris from clogging a vehicle's fuel delivery system, a condition that severely...
What Happens When a Fuel Filter Gets Clogged?
A fuel filter performs an indispensable function: It traps rust, dirt and other impurities before those impurities reach the engine. A clogged...
Does a Fuel Filter Help Gas Mileage?
Fuel filters have an indirect effect on gas mileage, but can contribute to inefficient fuel consumption. Proper automotive maintenance, including replacement of...
The Effect of Temperature Change on Diesel Fuel
The volume and energy levels of both diesel fuel and gasoline will be altered by temperature fluctuations, which can increase and decrease...
How to Change a Fuel Filter in a 2003 Lancer
The Mitsubishi Lancer is a family car in the same family as the Plymouth Colt. When the fuel filter on a 2003...
How to Change an Alero Fuel Filter
The Alero was a compact car produced by Oldsmobile from 1999 to 2004. The fueling system on the Oldsmobile Alero was an...
How to Replace the Santa Fe's Fuel Filter for Mileage
If you have driven your Hyundai Santa Fe for 30,000 miles or more you should replace the fuel filter to increase your...
What Are the Symptoms of a Dirty Fuel Filter?
When a dirty duel filter is left for too long without cleaning or replacement, there is a good chance it will become...
Auto Air Filters That Increase Gas Mileage
Keeping a clean air filter in your car will help you obtain the optimum gas mileage for your car. A clean filter...