Having car troubles – i.e. having your automobile malfunction – is a royal pain in the ass. Nobody likes it, except the mechanics of course. They get paid to find and fix those problems.
Mechanic – I found your problem
Of course, sometimes finding out what the problem is doesn’t mean that it’s fixable. This is often the case when one either uses substandard parts to start with or adds shoddy after-market modifications conceived of in the 3rd-World. 😉