A clogged fuel filter can lead to several problems, including:
* Poor engine performance: The engine might struggle to start, run rough, hesitate, or lose power.
* Reduced fuel economy: A restricted fuel flow forces the engine to work harder, consuming more fuel.
* Engine stalling: In severe cases, the engine may stall completely due to insufficient fuel delivery.
* Damage to the fuel pump: The fuel pump has to work harder to push fuel through a clogged filter, potentially leading to premature failure.
* Engine damage: Lack of sufficient fuel can cause damage to engine components, leading to costly repairs.
The manufacturer recommends a fuel filter replacement interval, but it's generally a good idea to replace it every 20,000 to 30,000 miles or as needed if you notice any of the symptoms listed above. The harshness of your driving conditions and the quality of your fuel can also influence how frequently you need to change it.