Hear a Knock? Upload Your Engine Sound & Get an AI Diagnosis in 15 Seconds

Free. No signup. Our AI analyzes 2000-5000 Hz frequencies to detect lifter tick, valve tap, and rod knock before you pay a mechanic $150

How It Works - 3 Steps to Diagnosis

1. Record 5 Seconds

Open hood, record knock near engine with your phone. No app needed.

2. AI Analyzes 2000-5000 Hz

Our AI trained on 1000+ engine failures detects lifter tick, rod knock, valve tap.

3. Get Fix & Cost Estimate

Get exact problem + parts cost + urgency level. Save $150 on mechanic diagnosis.

Trusted by DIY Mechanics in 12 Countries

✓ 2,847 sounds analyzed ✓ 94% accuracy ✓ No data stored

Frequently Asked Questions

What engine sounds can your AI detect?

Our AI detects lifter tick, rod knock, valve tap, timing chain rattle, piston slap, and alternator bearing whine. Trained on 2000-5000 Hz frequency range where most engine failures start.

94% accuracy on common failures. AI analyzes frequency patterns that human ear misses. Saves $150 on initial diagnosis.

No. Audio is processed in your browser and deleted immediately. We don’t store, sell, or share recordings. Privacy first.

Yes. Many mechanical knocks (like lifter tick) start 2-4 weeks before ECU triggers check engine light. Early detection saves $800-$2000 on engine repair.

100% free. No signup, no credit card. We monetize via affiliate links for parts (if you need to buy). Upload and get diagnosis in 15 seconds.

Common Engine Sounds We Diagnose