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How to Check Your Tyre Pressure


No matter what vehicle you drive, you’ll rely on your tyres to keep you safe on the road, so it’s essential that you keep the tyre pressure at the right level.

If it dips below the optimum level, your car will need to use more fuel to keep moving and it can cause more wear to edges of the tyres, which can be dangerous and will mean they need replacing more often. If you over-inflate your tyres, it can cause unpredictable handling and also deteriorate the tread on your tyres more quickly, again causing a potential driving hazard and extra expenditure on replacement tyres.

Checking you have the correct pressure is actually very easy to do at your local garage using their tyre inflator and pressure gauge. Simply follow our steps below and you’ll see for yourself!

Step 1
Make sure your tyres are cool.

If you’ve driven your car further than about two miles, they will have expanded from the heat, so you must wait until they have cooled down enough to get a proper reading.

Step 2
Check your manual

Your car owner’s manual will detail the correct PSI (tyre pressure) that your tyres should be inflated to, as recommended by the manufacturer. Your front and back tyres may have different PSIs, so be sure to check both.

Step 3
Unscrew the valve caps on the tyres

The valve stem is the small black extension on the tyre, near the hubcap, and the valve cap is the small screw lid on the end.

*It’s advisable to unscrew all the caps before you put your money in the pressure gauge, as they usually operate on a timer and you don’t want to waste time fiddling with them while the timer counts down.

Step 4
Set the pressure you need

This is really easy to do: just press the arrows until the correct tyre pressure is displayed – this means the inflator will automatically fill your tyres with air until the correct PSI is reached.

Step 5
Attach the pressure gauge

Firmly press the air pressure gauge onto the open value stem and check what the gauge displays. If you hear a hissing sound, the gauge isn’t properly attached, and you’ll need to adjust the angle and ensure it is pressed on evenly.

Step 6
Fill the tyres with air

If the pressure displayed is the correct PSI for your vehicle, then your job is done – but remember to check all the tyres properly.

If not, the tyre inflator should automatically fill your tyres with air until it reaches the correct pressure.

Repeat this on all tyres until you have the right PSI on each.

Step 7
Don’t forget to reattach your valve stem screw caps. And that’s it; you can get back on the road!

The team at Tyres Northampton can expertly fit any tyres, no matter the make, model or wheel size. If you’re concerned that your tyres may have been over- or under-inflated, you’ve found a crack in the rubber or the tread has simply worn down to an unsafe level, come in to see us. We’ll ensure your new tyres are fitted to the highest standard to keep you safe on the road.


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