Posted on: June 28th, 2016 by

Some drivers have problems with their tire pressure sensor, corroding and going bad.  Many of these sensors are connected to the valve stems on the tires.  Some drivers like to put metal caps for show on their valve stems, this creates a playground for corrosion.  When metals touch each other, such as the cap and the threads, many times corrosion will grow on these metals.  Sometimes it gets so bad that the cap will rust weld itself to the valve stem.  This makes it very difficult to remove the cap from the stem and many times the stem will break off.  This damages the sensors that are attached to the stem.

Damaged Sensors

Other issues that can cause damaged sensors, are when manufactures use brass valve cores inside of the valve stem.  The sensor have aluminum and it will not mix with brass.  The reaction between the two metals will cause the valve core to weld itself to the stem and will be impossible to remove.  The sensor can be easily damaged if the tech is untrained or unaware of how to remove the entire stem.  Another issue that will cause the valve stems to corrode is water and salt off of the roadways.  The stem is nearly always in contact with water, and in the winter there are chemicals and salt that are put on the roads to melt the snow and ice.  When these items get on or into the valve stem corrosion is created.

Achy Breakey Parts:  TPMS And Corrosion

Achy Breakey Parts TPMS And Corrosion

Things That Can Help Prevent Corrosion

  • Be sure that your valve stem cover is make of rubber or plastic and not metal
  • Have nickel coated valve cores installed
  • Have your service technician install a service pack when you have new tires put on
  • Make sure that your service technician knows that your sensor is on your valve stem
  • Use a second generation aftermarket sensor

Keeping Your Sensor Safe

Keeping your tpms system safe is important for your air pressure system. You can also checkout our top article here for more information. These sensors are of the fragile nature and are put in a rough area of your vehicle.  It is important to do the best that you can keeping them from becoming damaged.  When a sensor gets damaged, your air pressure system does not work properly.  You could get a low tire and that sensor will not alert you leaving you in a situation that you could blow a tire or wind up broke down along the side of the road with a flat tire.

Doing what you can do to protect your valve stem will also help to protect your sensor.  Try to make sure that your valve stem stay clean and is capped at all times with a rubber or plastic cap.  Click on our link:http://www.mobilemastertrucks.com/the-evolution-of-tpms-systems-and-the-role-they-play-in-our-safety/ here for more to know. Having the service packet installed every time you have new tires or a tire service done, will also help to prevent corrosion to your valve stem.  Simple procedures like this can help to save your money in the long run and prevent you from having to purchase a new tire pressure sensor.

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