Seven Symptoms of a Failing Fuel Pump

Your vehicle cannot start and run without the fuel pump. The fuel pump is what moves the gas from the tank to the engine so the ignition system can spark it and start your car, truck, or SUV. Your failing fuel pump could die unexpectedly, but it can also produce symptoms prior to its death. What are those symptoms? Righter’s Auto Repair lists seven below so keep reading.

High-Speed Performance Issues

Because the failing fuel pump is tasked with delivering the gasoline to the engine, the engine will react if it isn’t getting enough gas. When driving fast, your vehicle’s engine with cut and sputter if the fuel pump cannot send a constant and correct stream of gasoline.

Temperature and Stalling Issues

A failing fuel pump will often overheat. When it does this, your vehicle’s engine gets too hot and stalls. Whether the fuel pump or another issue, if you notice the temperature gauge rising on your dashboard, pull over to safety and call for a tow to the service shop.

Low Fuel Pressure

A malfunctioning fuel pump often cannot produce the fuel pressure required by your engine. This will result in the engine performance issues discussed above and below. You can test your fuel pressure using a gauge purchased from your local automotive parts store.

Engine Stress Problems

Your vehicle’s engine is placed under stress when it’s climbing up steep hills, hauling heavy cargo, or is loaded down up to its maximum weight capacity. If you notice significant engine lag during these stressful situations, your fuel pump might be bad.

Surging Issues

Sometimes, the fuel pump will push too much gasoline into the engine and you will pick up speed as a result. This is called an engine surge, and if the fuel pump motor is going out, its resistance will be off and your engine speed will pick up and slow down as a result.

Gas Mileage Issues

Engine surges cause this problem. The more gas the fuel pump allows into the engine the less gas mileage you’ll get. If you’ve noticed a sudden drop in your car, truck, or SUV’s gas mileage, have the fuel system inspected to see if that’s the culprit.

Failure to Start Issue

Finally, if the fuel pump is dead or completely clogged, you will not be able to start your engine. The reason is simple and one you probably already know: The engine isn’t getting any gas. Have your vehicle towed to the auto shop.

Call Righter’s Auto Repair in Grand Ledge, MI, if you notice any of these symptoms.


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