![]() By reducing the fuel consumption and extending the lifetime of the tires, IntelliSens contributes to the reduction of CO2 emissions. For 99 of wheel and tire assemblies, the TPMS sensor is either a clamp-on metal valve or a snap-in rubber stem. These type of valve stems can be altered by your tire dealer to correctly bend. Switching to a direct measurement TPMS offers financial benefits through the extended service life.ĭriving with the correct air pressure can lower fuel costs by 1-3%. If you have to use a valve stem, we highly recommend straight metal valve stems. A tire with 20% less pressure than the recommended level shortens the lifetime of the tire tread by up to 25%. A similar fate may befall aftermarket brass valve cores. Metallic valve caps can become seized to their valve stems due to galvanic corrosion and efforts to remove these caps can break the stem, destroying the sensor. The TPMS helps to extend the lifespan of a tire. The first generation of TPMS sensors that are integral with the valve stem can suffer from corrosion. Properly working TPMS sensors ensure drivers are informed with accurate readings so adjustments can be made if necessary. By running optimum tire pressures, tire performance and longevity will be maximized. Detecting and eliminating tire pressure problems early on improves drivability and prevents accidents caused by tire damage or failure.Īs driving enthusiasts, we all want to extract the most performance out of our vehicles. These parts degrade over time and can cause the TPMS sensor to fail if not maintained.Ĭorrosion at the base of the valve stem, using certain types of aerosol tire inflator or sealer, and exposure to moisture or road salt are some of the reasons why TPMS sensors might fail prematurely.A study by the National Highway Traffic Safety Association (NHTSA, USA) showed that vehicles with a tire pressure at the recommended level are much more likely to be involved in an accident due to tire damage. These can include the valve stem, valve core, and stem nut and grommet (on metal stem sensors). You should however plan on replacing the TPMS sensor service parts. When you get new tires, if your old TPMS sensors are still working, they can be reused. This starts with the TPMS system, both maintaining and evolving it. By taking the right preemptive steps, drivers and mechanics can help bring this number down. More than 70,000 accidents a year are caused by improper tire inflation. Additionally, replacing all of the service parts ensures a proper sealing of the TPMS sensor on the wheel. If the corroded valve stem compromises the sensor, it can cause problems with your tires as well as your TPMS system, including air leakage and incorrect air pressure or temperature readings. If the valve stem is compromised for any reason, then it is likely that the TPMS sensor is also compromised. Many factors caused this corrosion, such as the natural elements that accumulated on the sensor, road salt, and bimetallic reaction with the wheel itself. This led to many problems, one of the biggest being corrosion of the metal parts. ![]() In the past, all of these pieces would be reused during tire or TPMS sensor service. Every time you perform tire service on a TPMS equipped wheel, the TPMS sensor service kit parts, such as the nut, washer, seal, valve core, and cap must be replaced, because these parts are designed for one-time use only. ![]() ![]() TPMS sensors only need to be replaced if damaged or if the battery is worn out, and the durable Continental metal valve stem is also reusable unless it is damaged. When do TPMS sensors and it’s parts need to be replaced? Of course, these components do not last forever, so proper maintenance and replacement is required to keep the entire TPMS system operating at peak efficiency. These small parts include the valve stem, valve core, valve cap, nut, washer, and seal. A standard 65 psi max, rubber valve stem is very flexible, as seen here: Some people think the 80 psi max High Pressure HP 600 rubber valve stem is OK to use with external TPMS sensors, but you can see the HP 600 is still flexible: Here is proof that an HP rubber stem can fail when a TPMS sensor is installed: IMO, staying with any snap. TPMS sensors are comprised of the sensor itself along with many other small parts. ![]()
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