If you face any of the above symptoms and ignore them, eventually your engine will refuse to start. Fuel cannot reach the engine upon ignition when a fuel pump completely malfunctions. This acronym encompasses our mission, values and culture. Our name reflects who we are: a transparent, experienced auto shop at the HEART of the community with a sincere passion for our customers and our employees.
The importance of fuel pumps Fuel pumps inject gasoline from the fuel tank into the engine in most cars and trucks. Engine Sputtering at High Speeds One of the best indications that your fuel pump is failing is a sputtering engine while driving at consistently high speeds. Decreased Fuel Pressure Low fuel pressure can lead to engine misfires, low acceleration, rough idles, and engine stalls.
Whining Noise From the Fuel Tank One of the first symptoms of a problem with the fuel pump is a loud whining sound. Difficulty Starting Another symptom commonly associated with a problematic fuel pump is difficulty starting.
Engine Sputtering One of the surest indicators of a faulty fuel pump is a sputtering engine — typically at high speeds. Loss of Power Under Stress Another indication of a bad fuel pump is a loss of power when the vehicle is under stress — such as driving uphill or carrying a heavy load — or while accelerating.
Car Surging Irregular resistance inside the fuel pump motor may cause vehicle surging, and indicates a fuel pump in need of repair. Car Will Not Start Another more serious symptom of an issue with the fuel pump is a no-start condition. Home Fuel System Inspection. The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details.
Excellent Auto Repair Ratings. YourMechanic Auto Repair. Related Articles. Symptoms of Bad or Failing Spark Plugs. Experienced Mechanic? Recent Fuel System Inspection reviews. Excellent Rating. Rating Summary. Johnny 33 years of experience. Request Johnny. Toyota Corolla L Johnny did a great job. Kenneth 20 years of experience. Request Kenneth. BMW X5 L Car is not starting Another more serious symptom of an issue with the fuel pump is a no start condition. Auto Repair Ownership fuel system noises fuel pump.
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In the early stages of failure, this sputtering may only last for a minute or so before the engine returns to normal operation. Some drivers may confuse this sign with the effects of dirty gas, but modern fuel standards make a failing fuel pump more likely. If you notice that your car often loses power when you try to accelerate from a stop, your fuel pump may be in trouble. Accelerating requires more fuel, forcing your fuel pump to work harder. If your pump is failing, it may not be able to keep up with this increased demand, starving your engine of fuel as it tries to accelerate.
Certain driving activities, such as climbing a hill or towing a load, place an extra strain on your engine and demand more fuel to deliver the same performance. These demanding situations increase the strain on your pump, causing the weak elements to fail. As your fuel pump begins to wear out, its components often wear down at different rates.
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