![]() A weak battery can produce insufficient voltage. Having a week’s batteryĪ weak battery is the second most common cause when the fuel pump relay fails. Most parts have reached the end of their useful lifespan. The electrical wiring of a car becomes tangled and unsafe. The likelihood of a fuel relay failure increases if your vehicle has high mileage and has run over 200,000 kilometers. What follows are the two most common reasons for fuel pump relay failure. What is the reason for a Fuel Pump Relay failure? If you cannot identify these situations, you can test them with a digital multimeter.Visually inspect the signs of corrosion or overheating in the relay.Moreover, you will not hear any noise from the fuel pump. ![]()
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