The leak in the fuel pump will reduce the actual pressure and volume of the fuel delivered to the internal combustion engine. This is because there is supposed to be only one pressure that the fuel pump needs to maintain to create proper combustion, ranging from 40 to 65 PSI. A leak disrupts this process, providing an inadequate fuel supply, most especially during high-speed driving where demand for fuel is greater.
In 2020, a major automaker recalled over 1.4 million vehicles worldwide due to fuel pump leaks causing stalling issues at highway speeds. Reports indicated that fuel pressure dropped by as much as 30%, preventing the engine from maintaining power. Drivers experiencing this issue often reported engine sputtering or abrupt stalls while traveling above 50 mph, creating dangerous situations.
Fuel pump leaks are common, usually because of worn-out seals, cracked pump housing, or corrosions due to the direct contact of contaminants. The efficiency of the pump deteriorates with time due to all these factors. According to a study conducted by the Automotive Research Institute, 15% fuel delivery efficiency was reduced on average in cases of leaking fuel pumps in vehicles, increasing the propensity for engine stall under load.
Symptoms of a fuel pump leak include a noticeable gasoline smell around the car, reduced fuel economy, and the inability to maintain speed. To find leaks, mechanics test the fuel system for pressure holding. Any pressure below specifications means that there could be leaks in the pump or at its connections. Replacing a bad pump costs from $300 to $900 depending on the model of your car and labor costs.
According to David Matthews, an expert in automotive, “A fuel pump leak compromises the engine’s lifeline. When going full speed, the demand for fuel is high; any disruption can cause it to stall right there and then.” His explanation emphasizes how fuel pumps are critical in keeping the engine stable at high-performance instances.
To avoid stalling due to leaks, drivers should perform periodic checks of the fuel pump and associated parts. Early leak detection can avert large-scale repair expenses and potentially dangerous driving situations. Ensure always reliable replacement from Fuel Pump for proper fuel delivery, giving the right performance from the engine, even when at high speed.