What are the causes of fuel pump failure?

1 Answers
SanEmilio
07/23/25 8:09pm
Fuel pump failure can be caused by the following reasons: 1. Reason one: Insufficient fuel in the tank. When the fuel level warning light on the dashboard lights up due to low fuel level, the fuel pump motor does not receive adequate cooling and lubrication, which can cause the motor to overheat or even stop working. Prolonged operation under such conditions will accelerate the damage to the fuel pump. 2. Reason two: Poor quality gasoline containing impurities or foreign objects. If the fuel pump is too dirty, these impurities can enter the internal bearings of the fuel pump, accelerating bearing wear and leading to fuel pump failure. 3. Reason three: Long-term failure to replace the fuel filter. A clogged fuel filter causes the fuel pump to operate under high load for extended periods, resulting in fuel pump damage.
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