Use pressure gauge to measure tire pressure

How to Check Tire Air Pressure

If the tires on your vehicle have an incorrect level of pressure, there are many negative consequences that might occur. Two of the most important ones are tire blowouts and uneven tire wear. Naturally, you should look to keep these things from happening and this is why you must maintain the tire air pressure of your car on your own. The important thing is to perform checkups regularly.

That way, you will ensure maximum safety on the road. You should check the pressure in your vehicle’s tires every time you stop for some gas. By doing this, you will make sure that your tires are in good shape and that you are getting the most out of them. If you don’t know how to check tire air pressure, have no worries, as we will explain it all step by step. Just bear with us.

Step 1 – Find Out The Recommended Cold Pressure Of Your Tires

Label Of Recommended Cold Tire Pressure

The first thing you should do is figure out what your tire’s standard cold inflation pressure is. You can find this out in your owners’ manual or inside the driver’s side door. The number you find is the lowest allowed pound per square inch of air pressure in your tires. This number is suggested and supplied by the manufacturer of your car. The following are the reasons why the inflation minimum can be set higher:

  • For mini pickups, minivans and a majority of sedans, manufacturers have a habit of recommending 27 to 32 pounds per square inch, but you should know that it can go up to 40.
  • For bigger vehicles that have to transport heavy burdens such as SUVs and trucks, the minimum PSI is usually higher by 4 to 8 PSI when compared to small cars, and the maximum is around 45.
  • You should bear in mind that, in some cases, the back and the front tires may need different pressure. Therefore, if your manufacturer suggests something like this, don’t be surprised.

Step 2 – Remove The Valve Stem Cap

Step 2 of checking tire air pressure - remove the valve stem cap

Once you’ve found out the optimum level of your tires’ pressure, remove the valve stem cap, which is on top of the valve stem, located on the tire of your vehicle. A valve stem is a silver or black extension, usually close to the hubcap. Its shape resembles a pencil, and it is 1 inch (3 cm) long.

Step 3 – Measure Tire Air Pressure with Pressure Gauge

Step 3 - Measure Tire Air Pressure with Pressure Gauge


Take an air pressure gauge and press it onto to the valve stem. When it’s fixed, you can record the readings displayed. If you notice a sound that resembles hissing, then the gauge you are using is either uneven or too tight to get a precise reading. The angle of the gauge may not be set up properly and you might just need to adjust that a bit. In case you are using a digital air pressure gauge, there might be a button that you need to press in order to start reading the air pressure. With traditional pressure gauges, readings are automatically displayed once the gauge is in place.

Step 4 – Put The Valve Stem Cap Back

After you’ve measured the pressure, you should consider replacing the valve stem cap. Many people think that this cap holds air, but its main function is to hold moisture and dirt away from the valve mechanism inside the valve stem, which in fact holds the air inside the tire.


Convenient Alternative: Use FOBO TPMS

Screenshot of FOBO Tire App

Apart from traditional analog and digital gauges, there is also a brand new piece of technology used for measuring tire air pressure. The FOBO tire pressure monitoring system is a Bluetooth sensor-based measuring system that allows you to check the pressure using your phone. With FOBO tire, you won’t have to do anything besides checking your phone app, which will show you your readings in just a couple of seconds.

Last but not least, I suggest that you avoid relying solely on your eyes when it comes to determining the air pressure in your vehicle’s tires. Don’t be lazy. Sometimes, it can be very difficult to tell if a tire needs more or less pressure by just looking at it. Also, there is the issue of over-inflation, and if this happens, you might damage your tires and get yourself into trouble.


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