How To Check Tire Pressure With a Tire Pressure Gauge

Do you know how to check the tire pressures on your car?

As a mechanic with 28 years of experience, tire wear caused by improper tire pressure is something I know a lot about.

Maintaining correct tire pressures on your car is easy to do, increases fuel mileage, and improves vehicle handling and safety.

“If your car rides like crap … Check the tire pressures!”

Maintaining tire pressure is an easy way to improve handling and save money. That’s why I’ll explain how to check tire pressure in this article step by step, it will show you how to do this important car maintenance item so you can reap the rewards.

Have zero mechanical knowledge? Don’t worry, you can still learn how to check tire pressure, it’s that easy. Let me guide you through the process, you’ll be checking the tire pressures on your car like a pro in no time.

First… The benefit of maintaining the tire pressures on your car.

According to

• Better tire wear 
• Improved handling
• Increased fuel mileage 
• Reduced tire feathering and wear
• Better performance in bad weather
• No warning lights on the dash (you know who you are.)

Why you should check your tire pressure regularly

Tires inflated to the correct pressure last longer, wear slower, and improve the handling of your car. Incorrect pressure does the complete opposite, costing you more at the pump, affecting stopping distance, and giving you the feeling of “your car being all over the road” while driving.

What is checking tire pressure?

Checking tire pressure is measuring the amount of air inside a tire using a tire pressure gauge. The gauge fitting is pressed into the tire valve stem, depressing the center valve core. This allows the air in the tire to flow into the gauge under pressure, where it can be measured. 

Tire inflation pressure is read in psi, or pounds per square inch, a decent tire pressure gauge will give you an accurate reading of the pressure inside of the tire.

The normal psi range for most vehicles is 32-38 psi, this is not set in stone so be sure to always refer to the inflation sticker found on the driver’s side door sill of your vehicle, or the owner’s manual.

Maintaining the right tire pressure ensures proper tire performance and better fuel efficiency. Many people don’t realize that incorrect pressures WILL cost you more at the pump! 

What’s the correct pressure for your tires?

Every manufacturer has different specifications for tire pressures. Most modern vehicles have a sticker listing the correct pressures for the front, rear, and spare tires. This sticker is located on the inside of the driver’s side door jamb.

If all else fails open up the good old owner’s manual, here you will find all of the tire information you need.

Step-by-step instructions: How to check tire pressure 

Setting tire pressure is easy, and well worth your time. Here’s a quick rundown of what the process consists of.

tools you’ll need: 

• An accurate tire pressure gauge.
• An air compressor or portable tire inflator.
• An air chuck for inflating tires, (if your gauge does not have one built in.) 

Step 1: Find the pressure specifications for your car

Before anything you need to know what pressure is best for your ride. Open the driver’s door and peek at the inside of the door sill.

There should be a sticker that lists the front, rear, and spare tire pressures. It will look like this…

Most cars range around 32-36 PSI but that is NOT a given for all cars. If you are having trouble finding the sticker look up the specification in your owner’s manual, if all else fails ask Uncle Google for help or consult your vehicle dealer.

Step 2: Remove the valve stem cap

Face the wheel and locate the valve stem, twist off the top cap counterclockwise.

There are times when these caps will be seized ridiculously beyond belief, this mainly happens on cars that have aluminum valve stems and caps. What it takes to get these off can damage the stem, leaving you with a flat tire. 

If your valve caps are that tight have new stems and TPMS sensors ready to go before you try cranking the seized cap off, or consult a tire professional.

Step 3: Take a pressure reading

Press the gauge inlet against the valve stem and press firmly, this forces air into the gauge head where the amount of air pressure inside the tire can be measured.

On a standard tire pressure gauge there will be a mechanical needle or pin that gives you the reading of air pressure in the tire. A digital gauge will simply show the pressure value on the display. Take note of the psi reading for each tire and write them down in order. 

Step 4: How to adjust tire pressure

The end goal is to have the correct tire pressures in each tire. Now that we know whether the tires need air or not we can begin setting the pressures. Overinflated tires will need air let out to drop the pressure, and underinflated tires need air added. 

How to let the air out of a car tire

In the picture above you can see the valve stem, in the center is a small “pintle” looking inner core that seals the stem. This is what you want to depress to let air out of the tire.

If the psi reading is too high, simply press a small nail or screwdriver into the center of the valve stem carefully and air will vent off. Check the pressure frequently until it drops where you want it. 

How to inflate a car tire 

Adding air requires either an air compressor or a manual inflation pump. Fill the tire with air until enough pressure is reached by pressing the air inflater fitting firmly into the valve stem, this will add air to the tire until the correct pressure is reached. Recheck the pressure often as you slowly air the tire up. 

Key points for checking tire pressure

Checking tire pressure is so easy it is crazy not to do it at least once a month, here are some key takeaways.

How Can I Use a Tire Pressure Gauge Alongside a Tire Pressure Monitor System?

A tire pressure gauge can be used alongside a tire pressure monitor system to ensure accurate readings. While the monitor provides real-time updates, the gauge allows for manual checks and adjustments. By understanding how tire pressure monitors explained in the manual, drivers can maintain optimal tire pressure for safety and performance.

Wrapping up

Hopefully, you have a much better understanding of tire pressures and how to keep yours set. If you still have questions, or you just don’t have the tools needed stop by your local tire service professional and ask them to check for you. Do you know how to check the tire pressures on your car?

As a mechanic with 28 years of experience, tire wear caused by improper tire pressure is something I know a lot about.

Maintaining correct tire pressures on your car is easy to do, increases fuel mileage, and improves vehicle handling and safety.

“If your car rides like crap … Check the tire pressures!”

Maintaining tire pressure is an easy way to improve handling and save money. That’s why I’ll explain how to check tire pressure in this article step by step, it will show you how to do this important car maintenance item so you can reap the rewards.

Have zero mechanical knowledge? Don’t worry, you can still learn how to check tire pressure, it’s that easy. Let me guide you through the process, you’ll be checking the tire pressures on your car like a pro in no time.

First… The benefit of maintaining the tire pressures on your car.

According to

• Better tire wear 
• Improved handling
• Increased fuel mileage 
• Reduced tire feathering and wear
• Better performance in bad weather
• No warning lights on the dash (you know who you are.)

Why you should check your tire pressure regularly

Tires inflated to the correct pressure last longer, wear slower, and improve the handling of your car. Incorrect pressure does the complete opposite, costing you more at the pump, affecting stopping distance, and giving you the feeling of “your car being all over the road” while driving.

What is checking tire pressure?

Checking tire pressure is measuring the amount of air inside a tire using a tire pressure gauge. The gauge fitting is pressed into the tire valve stem, depressing the center valve core. This allows the air in the tire to flow into the gauge under pressure, where it can be measured. 

Tire inflation pressure is read in psi, or pounds per square inch, a decent tire pressure gauge will give you an accurate reading of the pressure inside of the tire.

The normal psi range for most vehicles is 32-38 psi, this is not set in stone so be sure to always refer to the inflation sticker found on the driver’s side door sill of your vehicle, or the owner’s manual.

Maintaining the right tire pressure ensures proper tire performance and better fuel efficiency. Many people don’t realize that incorrect pressures WILL cost you more at the pump! 

What’s the correct pressure for your tires?

Every manufacturer has different specifications for tire pressures. Most modern vehicles have a sticker listing the correct pressures for the front, rear, and spare tires. This sticker is located on the inside of the driver’s side door jamb.

If all else fails open up the good old owner’s manual, here you will find all of the tire information you need.

Step-by-step instructions: How to check tire pressure 

Setting tire pressure is easy, and well worth your time. Here’s a quick rundown of what the process consists of.

tools you’ll need: 

• An accurate tire pressure gauge.
• An air compressor or portable tire inflator.
• An air chuck for inflating tires, (if your gauge does not have one built in.) 

Step 1: Find the pressure specifications for your car

Before anything you need to know what pressure is best for your ride. Open the driver’s door and peek at the inside of the door sill.

There should be a sticker that lists the front, rear, and spare tire pressures. It will look like this…

Most cars range around 32-36 PSI but that is NOT a given for all cars. If you are having trouble finding the sticker look up the specification in your owner’s manual, if all else fails ask Uncle Google for help or consult your vehicle dealer.

Step 2: Remove the valve stem cap

Face the wheel and locate the valve stem, twist off the top cap counterclockwise.

There are times when these caps will be seized ridiculously beyond belief, this mainly happens on cars that have aluminum valve stems and caps. What it takes to get these off can damage the stem, leaving you with a flat tire. 

If your valve caps are that tight have new stems and TPMS sensors ready to go before you try cranking the seized cap off, or consult a tire professional.

Step 3: Take a pressure reading

Press the gauge inlet against the valve stem and press firmly, this forces air into the gauge head where the amount of air pressure inside the tire can be measured.

On a standard tire pressure gauge there will be a mechanical needle or pin that gives you the reading of air pressure in the tire. A digital gauge will simply show the pressure value on the display. Take note of the psi reading for each tire and write them down in order. 

Step 4: How to adjust tire pressure

The end goal is to have the correct tire pressures in each tire. Now that we know whether the tires need air or not we can begin setting the pressures. Overinflated tires will need air let out to drop the pressure, and underinflated tires need air added. 

How to let the air out of a car tire

In the picture above you can see the valve stem, in the center is a small “pintle” looking inner core that seals the stem. This is what you want to depress to let air out of the tire.

If the psi reading is too high, simply press a small nail or screwdriver into the center of the valve stem carefully and air will vent off. Check the pressure frequently until it drops where you want it. 

How to inflate a car tire 

Adding air requires either an air compressor or a manual inflation pump. Fill the tire with air until enough pressure is reached by pressing the air inflater fitting firmly into the valve stem, this will add air to the tire until the correct pressure is reached. Recheck the pressure often as you slowly air the tire up. 

Key points for checking tire pressure

Checking tire pressure is so easy it is crazy not to do it at least once a month, here are some key takeaways.

Wrapping up

Hopefully, you have a much better understanding of tire pressures and how to keep yours set. If you still have questions, or you just don’t have the tools needed stop by your local tire service professional and ask them to check for you.