Repair 7

What Are Some Signs of a Bad Fuel Pump Filter

The fuel pump on a motor vehicle pumps the gasoline through the engine to be ignited and create power. The fuel must pass through a fuel filter to ensure that no contaminants reach the engine. The filter traps large particles of dust and debris, stopping them from affecting the engine.

Start Difficulties

The first sign of a malfunctioning fuel pump filter is difficulty starting the car. The filter will start to block the flow of gasoline into the engine. This is mainly caused by blockage or clogging, but can also occur from a break in the filter or a misinstallation. The problem will escalate over time if untreated, and what began as a difficult start that took several attempts will become a complete inability to start the engine. Once the filter hits this point of damage the only fix is to replace it.

Stalling

A significant indicator of a faulty fuel pump filter is the stalling of the engine during use. The stall will most likely occur on an upward or downward slope (depending on the placement in the car) when the fuel is being pushed through the filter rapidly. The stall happens because of an interrupted or inconstant flow of gasoline and feels much like the car does when running out of gasoline. At this point, however, the fuel pump filter may just need a quick repair or cleaning.

Acceleration

The fuel pump filters earliest indicator of problems manifests as stunted acceleration. If the car starts running sluggishly or unresponsively it will mean the fuel pump is either off alignment or in the beginning stages of a clog. There is a good chance at this point that a simple fuel injector cleaner solution may fix this problem and the vehicle will start running efficiently again.