As a former mechanic, I’ve spent tons of money on tools. When I was actively in the shop every day, my wife would cringe when I informed her of my latest tool purchase. However, not every useful tool needs to cost an arm and a leg. If you are into DIY car repair, here are seven times when a simple $20 tool could save you thousands in repairs.
What Tools Are Best For DIY Car Repair?

1. OBD-II Scanner: Diagnosing the Check Engine Light
The check engine light can indicate various issues, from minor to severe. An OBD-II scanner, available for around $20, allows you to read diagnostic trouble codes (DTCs) and understand the problem. By identifying the issue yourself, you can determine if it’s something you can fix or if professional help is needed. This tool can prevent unnecessary trips to the mechanic and avoid paying for diagnostics. It’s a valuable investment for any car owner.
2. Torque Wrench: Ensuring Proper Tightening
Over-tightening or under-tightening bolts can lead to significant issues, including engine damage or wheel detachment. A torque wrench ensures that bolts are tightened to the manufacturer’s specifications. This precision prevents damage and ensures safety. Torque wrenches are available for around $20 and are essential for tasks like changing tires or working on the engine. Using this tool can save you from costly repairs due to improper bolt tension.
3. Brake Bleeder Kit: Maintaining Brake Efficiency
Air in the brake lines can cause spongy brakes and reduced stopping power. A brake bleeder kit allows you to remove air from the brake lines, ensuring optimal brake performance. Regular maintenance with this tool can prevent brake failure, which could lead to accidents and expensive repairs. These kits are affordable and easy to use, making them a wise investment. Proper brake maintenance is crucial for vehicle safety and longevity.
4. Compression Tester: Assessing Engine Health
A compression tester measures the pressure in your engine’s cylinders, helping diagnose issues like worn piston rings or leaking valves. Early detection of these problems can prevent complete engine failure. Using a compression tester can help you decide whether a simple fix is needed or if more extensive repairs are required. This tool, costing around $20, can save you from a $2,000 engine rebuild. Regular checks can extend your engine’s lifespan.
5. Dent Puller: Fixing Minor Body Damage
Minor dents and dings can be unsightly and reduce your car’s value. A dent puller allows you to fix these imperfections yourself without repainting. Professional bodywork can be expensive, but with a $20 dent puller, you can achieve satisfactory results at home. This tool is especially useful for hail damage or parking lot mishaps. Maintaining your car’s appearance helps preserve its resale value.
6. Battery Terminal Cleaner: Preventing Starting Issues
Corroded battery terminals can lead to starting problems and electrical issues. A battery terminal cleaner helps remove corrosion, ensuring a good connection. Regular cleaning can prevent battery drain and extend its life. This simple tool can save you from the inconvenience and cost of a dead battery. It’s a small investment that pays off in reliability.
7. Windshield Repair Kit: Stopping Cracks from Spreading
Small chips in your windshield can quickly turn into large cracks, necessitating a full replacement. A windshield repair kit allows you to fill chips and prevent them from expanding. Using this kit promptly can save you from a costly windshield replacement. These kits are easy to use and cost around $20. Maintaining your windshield’s integrity is essential for safety and visibility.
Empower Yourself with DIY Car Maintenance
If you’re someone who likes to DIY your car maintenance, you can’t go wrong with any of these seven tools. They are inexpensive and could potentially save you thousands in repair costs. Doing these things yourself and ensuring all of your vehicle’s regular maintenance needs are met can help you prevent some serious issues from popping up. It could even help you ensure that your car stays on the road longer. So, make sure you have these tools in your kit!
Have you used any of these tools to fix your car? Share your experiences and tips in the comments below!
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