The condition of your fuel pump directly influences your car’s performance since it plays a very important role in the delivery of fuel from the tank to the engine at the right pressure. A fuel pump that is not operating optimally can cause everything from poor performance to decreased fuel efficiency, engine misfires, and even complete engine failure. According to Consumer Reports, in the case of a malfunctioning fuel pump, the vehicle’s fuel efficiency drops by about 15%, leading to increased costs for refueling more frequently.
When the Fuel Pump is in good condition, it ensures a steady fuel flow that maintains optimal engine performance. Most vehicles’ fuel pumps require a fuel pressure of around 35-70 psi for proper fuel injection and combustion. In case of a failing pump, the fuel pressure could drop so that the vehicle shows hesitation to accelerate or stalls, especially under heavy load. Indeed, some studies have found that 18% of the stalling problem in a vehicle is caused by fuel pump failure.
A degraded Fuel Pump can also affect fuel economy. The inefficiency of combustion, as the pump struggles to push fuel through the system, may lead to low MPG. The engine will run rich because of a bad performance of the pump, using more fuel than needed. According to J.D. Power, the average vehicle could lose up to 20% of its MPG when the Fuel Pump isn’t operating efficiently, resulting in higher fuel expenses over time.
Another possible outcome when a Fuel Pump fails is the failure of the engine to ignite properly. If the pump fails to provide the proper fuel pressure, the engine may not get enough fuel for each combustion cycle. This may lead to engine misfire, rough idling, reduced power, and poor overall performance. This is quite normal, where a car has to encounter misfires after several short drives because the pump cannot sustain a continuous flow on long distances, which puts more stress on the Fuel Pump.
Moreover, if the Fuel Pump is old or worn out, it may increase the possibility of contamination from dirt, debris, or rust in the fuel tank. This can result in clogged filters and injectors, further aggravating the condition. If the pump filter becomes clogged, it might reduce flow and affect the power delivery of an engine. The replacement of such a Fuel Pump may be required, depending on the model and labor used, costing between $300 to $1,000.
It’s crucial to keep your Fuel Pump in good condition,” says Mark Bell, a mechanic at AutoZone. “Regular maintenance and prompt repair or replacement of a failing fuel pump can save you significant amounts on fuel costs and avoid serious engine damage.
The overall impact of a damaged Fuel Pump is evident when considering that AAA reports 20% of breakdowns are related to fuel system failures. If you notice symptoms like a decrease in power, hesitation, or poor acceleration, it might be time to check the Fuel Pump. Taking immediate action can help ensure that your vehicle maintains its performance and fuel efficiency.
For those looking to maintain or replace their Fuel Pump, quality options like Kemso Fuel Pump offer high-performance solutions designed for durability and reliability under varying driving conditions. Learn more about diagnosing and replacing your Fuel Pump at Fuel Pump.