Symptoms of a Faulty Fuel Pump

The main purpose of the fuel pump is to export fuel from the fuel tank to the engine, and it accomplishes this with the help of other vehicle parts. That makes determining whether it's failing or not difficult unless you're familiar with poor fuel pump symptoms.

Paying attention to how a vehicle regularly operates, acts, and runs on a daily basis is critical to diagnosing it. A faulty fuel pump can also lead to a MOT failure. Hence it is recommended to check MOT status of your vehicle and look online for a car service in Reading garage to schedule an appointment with a car mechanic to diagnose and repair the issue.

Is there generally a sound? If so, what does it sound like? What is the usual RPM of the vehicle? You will be able to identify fuel pump issues and know how to fix them with the assistance and attention to detail provided in this post.

Because numerous car components are interdependent and interrelated, a diagnosis could be a complex undertaking at times. It entails a lot of trial and error and pinpointing the exact cause of a problem frequently necessitates professional assistance and a vigilant mindset.

Bad Fuel Pump Symptoms

When the fuel pump fails, it will cause performance and drivability issues because it is responsible for exporting gas to the engine in order for it to run. You should be on the lookout for the following signs of a failing fuel pump, which alerts the driver to a serious issue:

Starting Issues - A common symptom of a bad fuel pump is difficulty starting. Because the fuel pump runs continuously whenever the ignition is turned on, it can weaken or wear out over time. A lousy fuel pump may still pump fuel, but the engine may experience hard starting due to inadequate fuel supply. A failing fuel pump can cause the engine to take more cranks to start than usual, or in the worst-case scenario, it could take the engine a million times to start. Before booking your next MOT testing service, have this issue resolved by searching online for car garages in Reading and booking an appointment with a trained technician. The reason for this is that if your vehicle has starting issues during a MOT test, this could possibly lead to a MOT failure as the MOT tester will not be able to carry out the required tests to pass your vehicle.

Whining Noise from the Fuel Tank - A loud whining sound is one of the most noticeable fuel pump symptoms. While running, a failing or weak fuel pump may emit a noticeable loud howl or whine. A normal fuel pump should make a humming sound to indicate that it is working. However, A loud whining coming from the Fuel tank indicates that you have a failing fuel pump.

Increased Engine Temperature - If the fuel pump fails to deliver the correct amount of fuel to the engine system, the engine will be overworked, resulting in an irregular temperature rise. Inspect your fuel strainer as well, as this could be one of the signs of a faulty fuel filter.

Stalling at high temperature - Stalling signals a fuel pump low-pressure symptom. It can occur due to several faults within a vehicle but you must pay attention when it happens repeatedly at high temperatures. Typically, stalling at high temperatures indicates a faulty fuel pump. If stalling continues with raising engine temperature, you will have to replace the fuel pump.

Engine Surging - A faulty fuel pump can cause vehicle surging, indicating that the fuel pump needs to be replaced. Surging happens at a constant, random speed. If this happens on a regular basis, it could be the result of a bad fuel pump.

Engine Sputtering – One of the most common signs of a faulty fuel pump is a sputtering engine and this usually occurs at high speeds. If you notice your engine sputtering at high speeds before returning to normal, it's a sign that the fuel pump is malfunctioning. The other issue to a sputtering engine is a faulty fuel injector. This indicates that the fuel pump or fuel injectors cannot provide the correct amount of fuel to the engine at ideal pressure. Both components will need to be diagnosed and tested to establish the real culprit.

Loss of Power – As the fuel pump is not delivering the correct amount of fuel to the engine, you may experience a sudden engine shut down when accelerating or going uphill. This is due to the fuel pumps inability to meet the fuel demand by the engine system and maintain the required amount of power.

As mentioned earlier, if you experience any of the above symptoms, check MOT expiry date of your car and have this problem resolved by a professional mechanic to avoid a possible MOT failure.