In order for the fuel system in a car to operate properly, it will need to have the right amount of pressure. The injectors that are mounted in each cylinder of the engine have to disperse the right level of gas to make the combustion process work. There are a number of components of the engine’s fuel system and among the most important is the fuel pressure regulator. This regulator helps the fuel injectors on the car to let out just the right amount of fuel. The fuel pressure regulator is used every time the vehicle is started and ran for an extended period of time.

The fuel pressure regulator on your vehicle is intended to last as long as the car does, but this is not always the case. Due to the amount of use and the grueling conditions that this regulator is exposed to, it will become worn over time. In most cases, this regulator will not be inspected as part of routine maintenance. This means that the only attention that this part will usually receive is when it is malfunctioning. Having a professional to troubleshoot your fuel system when problems arise is an important part of getting the right repairs made.

The longer that you wait to get a broken fuel pressure regulator fixed, the more trouble you will have keeping your car running. A defective fuel pressure regulator can cause a variety of issues that will make your car unreliable and dangerous to operate. Like any other part of the car’s fuel system, getting the regulator replaced in a hurry is the best way to reduce further damage. When the fuel pressure regulator is damaged, here are some of the signs you may start to notice.

  • A decrease in the level of fuel efficiency
  • The strong smell of gas in the engine compartment
  • There is smoke coming from the tail pipe
  • The Check Engine Light is on

The faster you are able to get the problems with your fuel pressure regulator fixed, the easier it will be to keep your car reliable and safe. Getting a professional to replace the part is your best course of action due to the complexity involved.

This article originally appeared on YourMechanic.com as How Long Does a Fuel Pressure Regulator Last? and was authored by Valerie Johnston.


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