Being involved in an accident can be quite scary and dangerous. There are a number of safety mechanisms that are built into a car that will help to reduce the danger that comes with being involved in an accident. The fuel system is among the most vital and potentially dangerous part of your vehicle. When involved in a head on or rear end collision, the last thing that you want is to have gas leaking all over the place. The fuel pump shut off switch is designed to turn the fuel pump off when there is signs of a wreck. This switch runs continuously monitoring for signs of a wreck.

Like any other switch or relay on a car, the fuel pump shut off switch is designed to work for the life of the vehicle. The hot and moist conditions that this relay is exposed to on a constant basis will usually lead to repair issues. Oxidation or rust on the pins of the switch are usually one the main things that will lead to this switch being rendered useless. In some cases, this switch will have to be replaced after a wreck due to the damage that it incurs.

Taking the time to notice when the fuel pump shut off switch is broken will help to save you a lot of time and money. When this switch is malfunctioning, it will be hard to crank or run your vehicle. When the switch goes bad, it will be best to let a professional handle it due to the difficulty involved. The professionals will be able to troubleshoot the issues that you are having with your vehicle.

Here are some of the things that you may notice when it is time to replace your fuel cut off switch:

  • The switch is constantly tripping and cutting the car off
  • The engine will turn over but will not crank and run
  • The engine dies and will not restart

Having a defective fuel pump shut off switch can lead to your car being unusable until the defective part is replaced. The best way to make sure that your fuel pump shut off switch is removed and reinstalled correctly is by letting an experienced professional take care of this problem.

This article originally appeared on YourMechanic.com as How Long Does a Fuel Pump Shut Off Switch Last? and was authored by Valerie Johnston.


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