Learn Auto Repair Free.
Learn auto repair free, a complete study guide for every Mechanicrank certification, with 780 key concepts across 189 skill areas in 13 specialties. When you're ready to prove it, the certification exam is one click away.
Study free. Certify when you're ready.
Every certification has a free course paired to it. Work through the lessons, drill the key takeaways in Study Mode, then take the $19.99 exam to earn a verifiable credential drivers and shops can look up. The learning is always free, the credential is what you pay for.
Engine Repair & Rebuild
From leaks and misfires to full rebuilds.
Diagnostics & Drivability (OBD-II)
Read the codes. Fix the actual problem.
Brakes & ABS
Stop safely, every time.
Suspension, Steering & Alignment
Rides right. Handles right. Wears right.
Electrical & Electronics
From dead batteries to CAN bus mysteries.
Climate Control (HVAC / A/C)
Cold air in summer, warm in winter.
Transmission & Drivetrain
Automatics, manuals, transaxles, transfer cases.
Diesel & Heavy Duty
Duramax, Powerstroke, Cummins, plus semi trucks.
EV & Hybrid Systems
The next 10 years of automotive work.
Preventive Maintenance & Inspection
Oil, filters, fluids, safety inspection, done right.
Performance & Forced Induction
Turbochargers, superchargers, tunes, big builds.
Mobile & Roadside Service
The mobile mechanic's certification.
Pre-Purchase Inspection
The pre-purchase inspector's certification.
The learning is free because the trade needs more good mechanics.
Whether you're an apprentice, a career-changer, or a shop tech leveling up, study everything here at no cost. Certification is optional, and it's how Mechanicrank stays free to run.