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How do I replace the TPMS sensor?

How do I replace the TPMS sensor?

A loss of tire pressure while driving can lead to a serious accident. To prevent this type of problem, vehicles are equipped with TPMS sensors that regularly monitor tire pressure. But it's important to know when to replace these devices. In this article, we'll take a quick look at how to install specific or universal sensors.

When to replace a TPMS sensor?

When the TPMS Battery is Faulty

Tire pressure sensors, or TPMS, are powered by a generator. This may be a hybrid battery or a lithium-ion battery. However, if you notice that your electronic control unit (ECU) is missing transfers, the tire monitoring system is malfunctioning. In this case, the TPMS light will illuminate to warn the driver.

Generally, if your system is malfunctioning, the warning signal will be a light that flashes continuously for 60 to 90 seconds. Also, if you notice significant engine surge or low battery voltage, your TPMS is malfunctioning.

When tires are worn

You may need to replace your TPMS sensors when you change your tires. This depends on the life expectancy of your sensors. They may have run out of energy to power themselves, or they may be at the end of their life when your tires are worn out.

What's more, although pressure sensor batteries can last between 5 and 10 years, their signal can become less effective as they age. What's more, a worn tire can also degrade the TPMS sensor. That's why you should check the condition of your sensors before you change tires.

When is the life of a TPMS sensor exhausted

The average life of a TPMS sensor is estimated at 7 years, but it can last anywhere from 5 to 12 years. Its life expectancy is tied to the number of signals it sends out, so driving habits have a big impact on its durability.

On the other hand, certain factors can wear out TPMS:

  • Lack of maintenance;
  • Lack of sealing;
  • Risk of corrosion.

For this reason, change the maintenance kit every year and perform regular maintenance.

TPMS Sensor Installation

Step 1: Check sensors

Read the data with a TPMS diagnostic tool held against the tire sidewall at valve level. If the diagnostic tool does not find a sensor, the tire is either not equipped with TPMS or the sensor is defective.

Step 2: Select the Correct TPMS Sensor

Use the vehicle finder in our MOSTPLUS online store to find the right sensor. You can also order universal sensors.

Step 3: Remove the existing tire sensor

To remove the sensor, carefully remove the tire from the rim without damaging the sensor. Detach the valve body and remove it from the valve hole.

Step 4: Install the new TPMS sensor

Metal valve

Loosely screw the sensor and valve together with a square-head screw to allow them to move. Then insert the valve through the valve hole, press the sensor onto the rim base, and tighten the cap nut to 4.0 Nm with the torque wrench.

Rubber Valve

Apply mounting paste to the valve, push it through the valve hole, and pull it out with the valve insertion tool. This type of valve should not sit on the rim base, but should float freely.

How much does it cost to replace a tire pressure sensor?

As you have read, the cost of replacing a tire pressure sensor depends on labor costs. That's why it's always best to have a technician replace the sensor to ensure a perfect fit. On average, you'll pay between $30 and $75 for a sensor and between $10 and $35 for labor. So the average cost to replace a tire sensor can range from $40 to $100.

The Road Safety Benefits of TPMS Valves

Tire pressure monitoring is an important road safety issue. Underinflated tires can have serious consequences for road holding and significantly increase the risk of a crash. TPMS valves provide a number of road safety benefits:

Prevent traffic accidents

TPMS valves monitor tire pressure in real time, so pressure changes can be quickly detected and acted upon. In the event of abnormal pressure, a warning light on the dashboard alerts the driver, allowing him or her to act quickly to avoid an accident.

Reduced fuel consumption

Underinflated tires increase rolling resistance, resulting in higher fuel consumption. TPMS valves keep tires at optimum pressure, reducing fuel consumption and greenhouse gas emissions.

Longer tire life

Underinflated tires wear out faster and require more frequent replacement. By monitoring tire pressure in real time, TPMS valves extend tire life by preventing premature wear.

In short, TPMS valves are an effective way to improve road safety by preventing accidents caused by underinflated tires. They also save money by reducing fuel consumption and extending tire life. That's why it's important to install them on your vehicle and maintain them regularly to reap the full benefits.

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