Car problems? We've got you covered. Auto Repair Help for Everyone. Troubleshooting a modern vehicle can be challenging, and if not done properly can lead to costly, unnecessary repairs. Avoid the expense by learning about the relationship between symptoms, testing, and repairs. Get Started How It Works: 01 Choose a Symptom Select the type of problem you are experiencing with your vehicle. 02 Test the Parts Understand how the system works and carry out the recommended tests. 03 Perform the Repair Replace the faulty part and confirm that the problem is no longer present. Additional Resources: Community Support Need more help? Check out our Community Support forum. Tools & Equipment Everything you need to properly diagnose and repair a vehicle. Repair Manuals Original Equipment Manufacturer (OEM) Reference Information.