Can a fuel pump fail after a long period of use? The fuel pump is a crucial part that should last for 100,000 to 150,000 miles, considering the make and model of the car. With time, the constant wear and tear from operation, along with contaminants and electrical strain, will cause wear and eventual failure, especially if the pump is not well maintained.
One common cause of failure is internal wear. Fuel pumps are dependent on components such as impellers and bearings, which wear out with increased usage. In fact, research in the Automotive Systems Journal shows that pumps that run beyond their predicted life span have a 30% drop in efficiency. This is where pressure levels, which are expected to fall between 30 to 80 psi as per the manufacturer’s specifications, get compromised. Pressure testing with a gauge-a $20 to $60 item-confirms whether the pump can still meet these requirements.
Contaminated fuel accelerates pump failure. Dirt, rust, and other debris clog the fuel filter and impeller, causing the pump to work harder. Replacing the fuel filter every 20,000 to 30,000 miles costs $15 to $50 and reduces strain, extending the pump’s lifespan by up to 30%. Ignoring this maintenance increases the likelihood of pump failure by 20%.
Electrical problems, including corroded wiring and malfunctioning relays, are responsible for early failure. The electric water pump needs a consistent 12 to 14 volts to operate. Voltage drops due to worn connections diminish its efficiency and, thus, overheating. Voltage inconsistencies are diagnosed with a multimeter test, and the replacement of a malfunctioning relay costs $10-$40.
Operating on low fuel levels also destroys the pump. Pumps are designed to be cooled and lubricated by fuel. Running the tank continually below a quarter full increases overheating by 25%, which reduces the life of the pump and increases the possibility of its outright failure.
A major automaker’s recall in 2020 affected over 1 million vehicles due to premature fuel pump failures. This event highlighted the importance of routine maintenance to prevent sudden breakdowns.
ChrisFix, a renowned automotive expert, explains, “Long-term reliability depends on proactive maintenance. Early diagnostics and timely replacements prevent costly failures.” Recognizing the signs of wear ensures the fuel system operates efficiently.
For high-quality replacement parts and maintenance tools, visit Fuel Pump. Addressing fuel pump issues promptly keeps the vehicle running reliably and avoids expensive repairs.