Loading

How do Ford tire pressure sensors work?

Ford vehicles are equipped with tire pressure monitoring systems (TPMS) that use sensors to detect the air pressure in each tire. These sensors play a crucial role in alerting drivers when a tire's pressure drops below a safe level, helping to improve safety and fuel efficiency.


What are Ford Tire Pressure Sensors?


Ford tire pressure sensors are small electronic devices installed inside each tire, typically on the wheel rim or valve stem. These sensors continuously monitor the air pressure in the tire and transmit this information to the vehicle's onboard computer system. The sensors use radio frequency (RF) signals to communicate the pressure data to the vehicle's TPMS module.


How Do Ford Tire Pressure Sensors Work?


Ford's tire pressure sensors work through the following process:



  • The sensor measures the air pressure inside the tire using a pressure transducer.

  • The sensor then converts the pressure reading into a digital signal.

  • The sensor transmits the digital pressure data via a low-power RF signal to the vehicle's TPMS module.

  • The TPMS module processes the pressure data and displays the information on the vehicle's dashboard, alerting the driver if any tire pressure is low.


The sensors are powered by a small battery that typically lasts 5-10 years, depending on usage. When the battery runs low, the sensor will alert the driver to replace the sensor.


Benefits of Ford Tire Pressure Sensors


Ford's tire pressure monitoring system offers several key benefits:



  • Improved safety: Properly inflated tires provide better traction, handling, and braking, reducing the risk of accidents.

  • Better fuel efficiency: Underinflated tires create more rolling resistance, leading to decreased fuel economy. The TPMS helps maintain optimal tire pressure for improved gas mileage.

  • Longer tire life: Maintaining the correct tire pressure extends the lifespan of the tires, saving money on replacements.


Overall, Ford's tire pressure sensors play a vital role in enhancing the safety, efficiency, and longevity of a vehicle's tires, providing drivers with valuable real-time information about their tire pressure.

How do I know if my tire pressure sensor is messed up?


Sensor Malfunctions: If your tire pressure is within the recommended range, but the sensor triggers a warning light, it may be malfunctioning. Handling Differences: Should you notice handling changes like swerving or flat tires without a TPMS alert, the sensor might be failing to detect these crucial pressure drops.



How do tire pressure sensors communicate with the car?


The sensor transmits that information via low-frequency radio to the vehicle's onboard computer and, if the car has one, to a corresponding display in the instrument cluster. It reads out in pounds per square inch (psi), and it illuminates an amber warning light to alert you if one or more tires are low on air.



Why is my tire pressure light on when my tires are fine on my Ford?


This may indicate that the tire pressure sensors need replacement batteries, or that there is an issue with one of the sensors in general. To diagnose the actual problem, schedule service near Irmo at Jim Hudson Ford. Our technicians can get things figured out in no time!



How does the Ford Tire Pressure Monitoring System work?


Each wheel is fitted with a sensor that, when your vehicle is on, reports the tire pressure to the cars computer. If one or more of your tires has low pressure, the system will display an indicator light on the dashboard. You will then need to check the pressures of each tire.



How long do Ford TPMS sensors last?


5 to 12 years
TPMS Life Expectancy
The estimated life expectancy of an OE TPMS sensor is 5 to 12 years, with the average lifespan being 7 years. TPMS life expectancy is directly related to the number of radio frequency transmissions the sensors make.



Do TPMS sensors run out of battery?


Most TPMS sensors run on batteries that are built into the sensor and these batteries are not replaceable. The life expectancy of the lithium ion batteries in a TPMS sensor is anywhere from 5-10 years.



How to tell if a TPMS sensor is bad?


Sensor Malfunctions: If your tire pressure is within the recommended range, but the sensor triggers a warning light, it may be malfunctioning. Handling Differences: Should you notice handling changes like swerving or flat tires without a TPMS alert, the sensor might be failing to detect these crucial pressure drops.



How do tire pressure sensors know which tire is low?


Speed Comparison: The system continuously monitors each tire's rotational speed. If one tire spins faster than the others, it indicates under-inflation.



How can you tell which tire is low without gauges?


Without a Gauge

  1. Look at the wheels. An underinflated tire will appear flat where it meets the road.
  2. Feel the wheels. If the tire is soft when you press on it, it probably has low pressure and needs more air.
  3. Load weight into the vehicle.
  4. Look for handling changes.
  5. Take the vehicle to a mechanic.



How do tire pressure sensors stay powered?


The majority are powered by batteries, which limit their useful life. Some sensors utilise a wireless power system similar to that used in RFID tag reading which solves the problem of limited battery life.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.