There are multiple reasons why a fuel pump can cut out at high RPM, and most of them have to do with fuel delivery. A vehicle on the high RPM needs some smooth fuel which is pushing at 40 t0 60 psi. Engine stalling or loss of power can also result because the pump doesn't achieve this pressure if it starts to fail. Originally around 20% of fuel delivery problems implicate pump failure and what with our modern trend to drive at fullheaveyload that number lacks an affect.
The fuel pump overheats as an example. Pumps do not last forever, 100,000 miles is generally the advertised lifespan- when a pump gets too hot (for example running overhigh RPM for long periods of time) it can cause the pump to overheat and it will thermal-shutdown. It happens when the pump tops its temperature threshold, which could mean as little as 200°F, and according to industry expert John Adams, 'A pump that runs too hot can shut down completely, leaving you without power just when you need it most'.
There is another element that also affects by keeping in view of fuel supply. At lower than a quarter tank, the pump may not be able to draw enough fuel if you find yourself high in the RPM band. That setup can result in a 30% falloff fuel pressure the could potentially cause a cutout. Also, a restricted fuel filter can also reduce pump efficiency by restricting flow. Remember the filter should be changed every 30,000 miles as part of regular maintenance.
Sometimes even electrical problems are the reason for a fuel pump cut out. This means the pump can perform fine below 3,000 RPM but have a moment that it will shut off if it does not receive enough power through a failing relay or bad wiring at higher RPM. Because, truth be told, nearly 15% of fuel pump failures talk about electrical faults, placing the focus once again on checking the Electrical System.
The bottom line, a fuel pump dropping out at hi rpm could be from a fuel pressure problem or overheating supply side issues and/or an intermittently failing any of the electrical circuit components. To learn more about maintaining your fuel system, go to the Fuel Pump website. By addressing these problems early, you guarantee that your car will perform at its best, even when there are severe conditions.