How long does the EGR temperature sensor last?
Auto repair

How long does the EGR temperature sensor last?

Are you familiar with the EGR (exhaust gas recirculation) system in your vehicle? If not, then this is what all modern cars have. The purpose of this system is to significantly reduce the amount of emissions your vehicle produces. At the same time, the system consists of various components, each of which plays its own vital role. The EGR temperature sensor is one such part of the system and is responsible for monitoring the temperature of the exhaust gases. In particular, these are gases that enter the EGR valve. The temperature gauge can be found on the EGR tube itself, making it the perfect place to monitor readings.

Now that you think about it, the sensor is reading pretty high temperatures, and if it's not picking up the proper readings, it won't be able to send the correct information to the engine control module. This causes the wrong amount of gas to pass through the EGR valve.

Manufacturers make this temperature sensor for the life of your car, but sometimes something can happen and the part fails. Here are some signs that your EGR temperature sensor may have reached its maximum life.

  • If you need to pass a smog or emissions test in your state, you will probably get a failing grade if your EGR temperature sensor has stopped working. Your outliers will far exceed what you are allowed to take the test.

  • The Check Engine light should come on and it will present codes that will point mechanics in the direction of your EGR system. However, a Check Engine light alone is not enough, professionals should run diagnostics instead.

  • You may start to hear a knock that comes from your engine area. This is not only a warning sign, but also an indicator that damage has been done to your engine.

The EGR temperature sensor plays a big role in getting the right amount of emissions out of your vehicle. While a part is designed to last the lifetime of your vehicle, this is not always the case. If you are experiencing any of the above symptoms and suspect that the EGR temperature sensor needs to be replaced, have a diagnosis or have an EGR temperature sensor replacement service from a certified mechanic.

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