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
P0304 Code: 2009 Chevrolet – What It Means & Cost to Fix
P0304 on your 2009 Chevrolet Avalanche? Learn what triggers this code, how serious it is, and what it costs to fix. Free AI diagnosis available.
Why Your 2008 Chrysler 300 (Causes + Fix Cost)
2008 Chrysler 300 No Crank Electrical Issue? Our AI detective found the 5 most common causes. Get a free diagnosis + see what repairs cost near you.
P0300 Code: 2009 Chevrolet – What It Means & Cost to Fix
P0300 on your 2009 Chevrolet Avalanche? Learn what triggers this code, how serious it is, and what it costs to fix. Free AI diagnosis available.
P0700 Code: 2023 Subaru – What It Means & Cost to Fix
P0700 on your 2023 Subaru Outback? Learn what triggers this code, how serious it is, and what it costs to fix. Free AI diagnosis available.
Why Your 2013 Nissan Sentra (Causes + Fix Cost)
2013 Nissan Sentra Engine clicking noise? Our AI detective found the 4 most common causes. Get a free diagnosis + see what repairs cost near you.
P0128 Code: 2016 Lexus IS 200t – What It Means & Cost to Fix
P0128 on your 2016 Lexus IS 200t? Learn what triggers this code, how serious it is, and what it costs to fix. Free AI diagnosis available.
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.
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