Free AI Car Diagnostic Tool
Stop guessing what's wrong with your car. Get an instant AI diagnosis with repair cost estimates so you can make informed decisions before visiting a mechanic.
No signup required. No cost. Ever.
Describe Your Car Problem
Chat with our AI to diagnose your vehicle issueDiagnose Your Car Problem
Enter your vehicle info and describe the issue
Analyzing your car problem...
Our AI is reviewing the symptoms and generating a diagnosis
Why Use AutoDetective.ai?
Know what's wrong before you visit the mechanic
Save Money
Get repair cost estimates so you know if you're being quoted a fair price
Avoid Scams
Understand what's actually wrong so you can't be upsold unnecessary repairs
DIY When Possible
Find out if you can fix it yourself with step-by-step guidance
Know the Urgency
Learn if it's safe to drive or if you need immediate attention
How It Works
Get your diagnosis in 3 simple steps
Enter Your Vehicle
Tell us your car's year, make, and model so we can provide accurate information
Describe the Problem
Tell us what's happening - strange sounds, warning lights, how it drives
Get Your Diagnosis
Receive likely causes, repair costs, urgency level, and DIY options instantly
Common Problems We Diagnose
From warning lights to strange noises, we've got you covered
Recent Diagnoses
See what problems other car owners have solved
2019 Nissan Altima AC Evaporator Freeze-Up: Causes & Fixes
Is your 2019 Nissan Altima AC freezing up and losing cooling power? Learn the common causes, repair costs, and DIY solutions for evaporator freeze-up.
2012 Chevrolet Malibu Brake Grinding: Urgent Repair Guide
Your 2012 Chevy Malibu brakes grinding? Learn causes, costs ($250-400), and urgent safety steps. Stop driving immediately - complete repair guide inside.
2020 Toyota Camry Battery Cold Weather Problems - Diagnosis Guide
Is your 2020 Toyota Camry struggling to start in cold weather? Learn about battery capacity issues, parasitic drain, and repair costs. Get expert solutions now.
2008 Toyota RAV4 Engine Fire: Causes, Prevention & Response
Engine fire in your 2008 Toyota RAV4? Learn immediate safety steps, common causes like oil spills on exhaust, and prevention tips. Emergency response guide inside.
2015 Ford F-150 Front Engine Oil Leak: Causes & Repair Guide
Fix your 2015 Ford F-150 front engine oil leak. Learn symptoms, causes, repair costs ($250-$450), and DIY tips. Expert diagnosis guide included.
2018 Honda Civic High Speed Steering Vibration: Causes & Fixes
Fix steering wheel vibration in your 2018 Honda Civic at highway speeds. Learn common causes, diagnosis tips, and repair costs. Expert solutions inside.
Frequently Asked Questions
Yes, 100% free. No hidden costs, no signup required, no credit card needed. We believe everyone deserves to understand what's wrong with their car.
Our AI provides likely causes based on your symptoms and vehicle information. While it's a great starting point, we always recommend confirming with a qualified mechanic for serious issues. Think of it as getting a second opinion before your shop visit.
Just your vehicle's year, make, and model, plus a description of the problem. The more detail you provide about symptoms (sounds, smells, warning lights, when it happens), the more accurate your diagnosis will be.
For safety-related issues or complex repairs, absolutely. Our tool helps you understand the problem and estimated costs so you can have an informed conversation with your mechanic. For simple issues, we provide DIY guidance when appropriate.
Ready to Find Out What's Wrong?
Stop worrying and start understanding. Get your free AI car diagnosis in under 2 minutes.
Start Free DiagnosisNo signup. No cost. Instant results.