Diagnose
What's going on with your car?
No mechanic jargon — decode your VIN, look up a scanner code, or just pick the closest description of what you're seeing or hearing. Always confirm with a qualified mechanic if you're not comfortable diagnosing or installing something yourself.
Decode your VIN
Enter your 17-character VIN to get your exact make, model, year and engine — decoded live from the U.S. government's public vehicle database.
Look up a scanner code
Got a code from an OBD2 scanner or a Check Engine light? Enter it to see what it means, common causes, and what to check first.
Or in plain words
What are you seeing or hearing?
My car won't start at all
Slow crank, clicking, or nothing when you turn the key usually points to a weak or dead battery. A portable jump starter gets you moving in under a minute.
We're still building this one →Rough idle, jerking, or a Check Engine light for a misfire
This is the classic symptom of a worn ignition coil or spark plug — the engine isn't firing smoothly on one or more cylinders. Coil-and-plug sets fix this directly.
6 products to compare →Dashboard lights flicker or the battery keeps dying
If a jump start works but the problem comes right back, the alternator likely isn't recharging the battery while you drive — not the battery itself.
6 products to compare →Squealing, grinding, or vibration when braking
Squealing is often a built-in wear indicator telling you the pads are due. Grinding or vibration means it's already overdue — don't wait on this one.
1 product to compare →A broken clip, loose trim, or rattling panel
Plastic push-pin clips holding fenders, bumpers and interior trim snap easily and are almost never sold separately at a dealer — a universal clip kit covers most sizes.
1 product to compare →I just want the right tool for a repetitive job
Not a symptom — just a job ahead of you (assembling something, working through a row of bolts). Browse cordless tools built for exactly that.
2 products to compare →