Can a Fuel Pump Cause a Car to Shut Off While Driving?

A faulty fuel pump definitely has the ability to cause a car to die while driving. The purpose of this fuel pump is to give a proper and consistent flow of fuel into the engine, at a predetermined pressure. In the event that the pump randomly stops working, it can cause the flow rate to be all over the place and have often led to an engine dying or at least having a run ability issue where you cannot drive. An engine devoid of fuel pressure ( for gasoline engines, anywhere between 35 to 65 psi ), will stagger and stall.

Intermittent power lossOne of the first symptoms of a problem with the fuel pump is a fortunate power loss. An engine may run well for a while and suddenly lose power, such as on a highway while driving at higher speeds or under load. That is because a weak or failing fuel pump does not produce the required amount of fuel. For the worst of the breakdowns, a whopping one in 10 engine stalling related callouts could all be traced back to fuel pump problems as of a report released mid-way through 2021; showing just how integral this element truly is for keeping your vehicle reliable.

Sometimes, drag is a factor. Over time, as it happens with many mechanical parts in the car, fuel pump too wears out and may overheat especially during long highway drives. If the fuel pump is hot enough, then in some cases that hotter temperature can cause it to stop working for a while, and that means no gasoline going to your engine. Riding on a trailer does not cool it off much, and the pump may work when returned to service so you cannot diagnose the problem.

The relay is in charge of sending electrical power to the pump so a broken fuel pump relay could be the reason your car has been turning off during errands or your drive. A failing or intermittent connection in the relay can halt the flow of electricity to the fuel pump, stalling a car suddenly. Keep checking the Fuel Pump Relay to prevent this.

One of the most important features is how Elon Musk said, "the least significant component can ruin the whole system." The pump is no exception, because even the smallest of malfunctions can mean big time headaches if left unattended due to things like random vehicle stalls.

See Fuel Pump and Installation Components to learn more about products that deliver the quality performance required for the safe operation of your vehicle, without any risk associated with engine stalling.

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