What Causes a Fuel Pump Inertia Switch to Trip?

By Staff WriterLast Updated Mar 25, 2020 9:36:55 PM ET
bojan fatur/E+/Getty Images

The design of the fuel pump inertia switch causes it to turn off the fuel pump if a vehicle is involved in an accident. However, in certain incidents such as a blown tire or hitting a pothole in the road, the switch has the potential to trip. If an automobile is not operating correctly, the manufacturer recommends that the switch be checked.