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Under Pressure: How To Check The Air In Car Tyres

To ensure your tyres are in top condition, it's important to regularly check the air pressure. In this article, we will guide you through the process of checking the air in your car tyres, step by step.


Keeping your tyres properly inflated is crucial for both car safety and performance. When your tyres are underinflated, it can lead to reduced fuel efficiency, decreased handling capabilities, and increased risk of accidents.

Step 1 – Gather the necessary tools

Before you begin, make sure you have the required tools at hand. You will need a tyre pressure gauge, which can be either digital or analogue, and an air compressor or access to a gas station with an air pump. It’s a good idea to invest in a quality pressure gauge, as accuracy is crucial for an effective check.

Step 2 – Determine the recommended tyre pressure

Next, you need to find out the recommended tyre pressure for your specific vehicle. This information can usually be found in the owner’s manual or on a sticker located inside the driver’s side door jamb or fuel filler flap. The recommended pressure is measured in pounds per square inch (psi) and may vary depending on the vehicle’s make and model.

Step 3 – Check the current pressure

Now it’s time to check the current pressure of each tyre. Start by removing the valve cap from the tyre’s valve stem. Press the tyre pressure gauge onto the valve stem firmly, making sure there are no air leaks. The pressure gauge will indicate the present pressure measurement. Repeat this process for all four tyres.

Step 4 – Compare with the recommended pressure

After obtaining the pressure readings, compare them to the recommended pressure for your vehicle. If the current pressure is lower than the recommended level, your tyres are underinflated, and if it is higher, they are over-inflated. It’s important to adjust the pressure accordingly to ensure optimal performance.

Step 5 – Inflate or deflate the tyres

To add air to your tyres, use an air compressor or visit a gas station with an air pump. Attach the air hose to the valve stem and add air in short bursts, checking the pressure frequently with the gauge. Be cautious not to over inflate the tyres, as this can lead to uneven wear or even a blowout. If the pressure is too high, release air by pressing the valve stem’s centre pin with the tip of the pressure gauge or another small object.

Step 6 – Recheck the pressure

After inflating or deflating the tyres, recheck the pressure to ensure it matches the recommended level. Repeat the process for each tyre until all are properly inflated.

Step 7 – Replace the valve caps

Once you have finished checking and adjusting the tyre pressure, replace the valve caps securely. Valve caps help keep dirt and debris out of the valve stem, preventing air leaks and maintaining proper pressure.


Regularly checking the air pressure in your car’s tyres is a simple yet essential task that should not be overlooked. By servicing your vehicle and following these steps, you can ensure better fuel efficiency, improved handling, and a safer driving experience. Remember to check the tyre pressure at least once a month and before long journeys. By keeping your tyres properly inflated, you can hit the road with confidence and peace of mind.

🚗 You might like this guide: How To Check & Change Your Car’s Windscreen Wipers.

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