Tire Repair Guide: 12 Steps to Follow

If you spend a considerable amount of time in the car, flat tires are about as guaranteed as having to pay taxes. Damaged tires are much more common in areas with heavy construction and during periods of warmer weather. It’s important to know what to do and make sure you’re prepared before this inevitable and often times annoying event occurs. We recommend doing a maintenance check periodically to make sure that your car is equipped with the proper tools and a working spare before it’s too late! If you’re feeling adventurous and want to repair your own damaged tire, here are the 12 steps to repairing a flat tire that you can do at home.

Important Safety Warning: When Professional Service is Required

Before we dive into the repair process, it’s crucial to understand that tire repair has serious safety implications. While minor punctures can sometimes be repaired at home, many situations require professional service to ensure your safety and that of other drivers. Always consult a professional tire technician if you’re unsure about the severity of the damage.

When You Must Seek Professional Service

• Sidewall damage: Any puncture or cut in the sidewall requires tire replacement.
• Multiple punctures: Tires with more than one puncture should be professionally evaluated.
• Large punctures: Holes larger than ¼ inch in diameter.
• Run-flat tire damage: These specialized tires require professional assessment.
• High-performance or speed-rated tires: Many have specific repair limitations.
• Previous repairs: Tires with existing repairs need professional evaluation for additional damage.

Risks of Improper DIY Repairs

• Blowout risk: Any puncture or cut in the sidewall requires tire replacement.
• Compromised structural integrity: DIY plugs don’t address internal tire damage.
• Legal liability: In some cases, improper repairs could affect insurance coverage.
• Shortened tire life: Poor repairs can cause premature tire failure.

Remember: A professional repair costs much less than the potential consequences of tire failure while driving.

1. Check the damaged tire for punctures and find the leak.

Finding the cause of the leak and locating where the tire is losing air are very important steps. Start by very gently running your hand over the outside of the tire to locate the foreign object, but be very careful not to cut yourself. A better way of detecting the leak is to mix soap and water and pour it over the tire. Once covered, check the tire for bubbles and that will indicate exactly where the tire is leaking.

Note: if the sidewall of the tire is leaking, the damaged tire will need to be replaced. 

Professional Inspection Standards: According to the U.S. Tire Manufacturers Association (USTMA), proper tire inspection requires removal of the tire from the rim to check for internal damage. This DIY method only identifies external punctures and cannot detect internal structural damage that may have occurred.

2. Procure the necessary tools for fixing the damaged tire.

You will need the following:

• Pliers
• Car jack
• Lug wrench (tire iron)
• Tire plug kit
• Chalk

Additional Safety Equipment:

• Safety glasses (to protect eyes from debris)
• Work gloves (to protect hands from sharp objects)
• Flashlight or headlamp (for better visibility)
• Tire pressure gauge
• Air compressor or portable pump

3. Loosen the lug nuts on the damaged tire.

The next step in this process is to loosen the lug nuts on the damaged tire. It’s critical to do this before you lift the vehicle up using a jack or hydraulic lift. Do not remove them completely but loosen them about a quarter turn. This will make taking them off much easier once the vehicle is properly lifted.

4. Lift the vehicle up using a jack or hydraulic lift.

It is necessary to lift the car up using a jack or hydraulic lift so that the damaged tire can be removed. This is an important part of the process and attention to detail at this phase is critical for your safety. Make sure the car is on a flat, even surface. Place bricks behind and in front of other wheels to prevent the car from rolling. Lastly, make sure to consult your vehicle manual to find the proper points of the vehicle to lift up on the jack. Once the car is fully lifted, remove the remaining lug nuts and take the damaged tire off of the car.

5. Remove the protruding object from the damaged tire with pliers.

Once you have located the source of the leak with the  soap and water method (mentioned above), use pliers to remove the foreign object. It’s important to mark where the leak is occurring with chalk so that you know where to plug with the tire plug kit.

6. Clean the damaged area with the rasp tool.

Use the rasp tool included in the tire plug kit to clean the damaged area. This can be done by inserting the tool in and out of the hole quickly. The purpose of this process is to roughen the affected area so the plug will stay in place.

7. Thread the plug through the insertion tool.

Before you can actually plug the damaged tire, you will need to thread the plug material through the insertion tool that is included in the tire plug kit. This can be a tricky process, be sure to consult the instructions on the kit to make sure it is done precisely as indicated.

8. Force the plug into the hole of the damaged tire.

Use the insertion tool to force the plug into the hole of the damaged tire. This takes a considerable amount of force and strength. There should be roughly ½ inch of plug sticking out of each side of the hole once it is properly plugged. If your kit includes liquid adhesive, add some to the plug ahead of time which will act as a lubricant and promote a leak-proof seal.

9. Cut away excess plug material from the newly repaired tire.

Use a knife, scissors, or box cutter to cut away the excess plug material. This will ensure a smooth ride once the process is completed. It is also a good idea to add some extra adhesive to the outside of the repaired area as a final precaution.

10. Add air to the newly repaired tire.

Once you’ve given the adhesive or sealant time to dry, it’s time to add air to the newly repaired tire. We recommend using an air compressor and be sure to check that the tire is at the factory-recommended psi using a tire gauge. Recommended air pressure can usually be located on a label on the door jam of the driver door.

11. Check the newly repaired tire for any additional leaks.

Repeat step number two and use the trusty soap solution to ensure that the tire is properly sealed and is not still leaking.

12. Reattach the repaired tire using the lug wrench.

Work the initial steps backwards to reattach the tire. Slide the wheel back onto the wheelbase and reattach the lug nuts while the vehicle is still lifted but do not tighten all the way. Once the wheel is reattached, lower the vehicle slowly and remove the jack. After the vehicle is lowered and weight is restored on the wheel, use the lug wrench to tighten the lug nuts.

While tire leaks tend to occur slowly over time, blow outs are another matter entirely. In the event of a tire blowout, do not immediately slam on the brakes. It’s important to drive through the blowout and slowly decrease speed. Put your hazard lights on immediately and continue to slowly and safely navigate to an area where you can safely address the damaged tire. A spare tire would need to be installed at this point or you would need to call for a tow.

Making the Right Choice: Repair vs. Professional Service

At Top Driver, we believe in empowering drivers with knowledge to make safe, intelligent decisions. While we’ve provided this tire repair guide, we want to emphasize that your safety is always the top priority.

When to Attempt DIY Repair

• Small puncture in tread area only (nail, screw, etc.)
• Emergency roadside situation where professional service isn’t available
• Temporary fix until you can reach a tire professional
• You have experience with basic automotive maintenance
• You have all the proper tools and safety equipment

When to Choose Professional Service

• Any uncertainty about the damage or repair process
• Sidewall damage or large punctures
• High-performance, run-flat, or specialty tires
• Multiple punctures or previous repairs
• You lack experience with automotive repairs
• Permanent, long-term repair is needed

Remember, a professional tire repair typically costs between $10-30, while the consequences of tire failure can include thousands in vehicle damage, injuries, or worse. The small investment in professional service provides peace of mind and ensures the repair meets industry safety standards.

We encourage all drivers to help you become a better, safer driver by understanding your vehicle’s systems and maintenance needs. Whether you choose DIY repair or professional service, the most important thing is making an informed decision that prioritizes safety.

Top Driver covers this type of information in all of our new driver courses. We understand the importance of arming the next generation of drivers with all of the necessary information to stay safe and make smart decisions on the road. Learn more about our Illinois, Michigan, and Ohio teen driver programs today!