Launched this week
BoltWiki
Find the failing car part and prove it before you buy
2 followers
Find the failing car part and prove it before you buy
2 followers
Describe what your car is doing. BoltWiki asks the yes/no questions a mechanic would ask, then shows the likely part, whether it’s safe to drive, and the checks that prove it. Free, built on 12,600+ guides, with new guides and cases added every week.
Hi Product Hunt 👋
When a car starts acting up, most of us do the same thing: search the symptom, read five forum threads that disagree with each other, and buy the part that gets mentioned most. Then the problem is still there. That's the expensive mistake BoltWiki is built to prevent.
How it works
Describe what you notice in your own words: a noise, a smell, a warning light, a code.
Narrow: it asks a few yes/no questions, the kind a mechanic would ask. Every answer moves the suspects up or down.
Confirm: you get the most likely part, a clear "safe to drive?" answer, and the checks that prove it before you buy anything.
It isn't a chatbot. Underneath is a structured troubleshooting database: 12,600+ guides, each one symptom × one part, with what normal looks like, what a failed part looks like, and the look-alike parts to rule out. You get the same answer every time, and you can always read the source.
Also in this launch
Real cases: 3,900+ repairs from r/MechanicAdvice where the owner confirmed the actual cause, including what they replaced first that didn't help.
Mechanic Class (/learn): a free practice game with 65,000+ questions taken from the guides. 10 questions a day, and every answer links back to its guide.
It's free and needs no sign-up. It's still early and growing fast: new guides and real cases are added every week (3,900+ cases came in over the last few weeks alone). I'd love to hear:
a symptom it got wrong (or right), and
which car or problem you'd like covered next.