Even though with advance tech and shorter time for repair, the skill of mechanics in diagnose car problems is slowly decline....
Also, are we going toward the "busted, so it throw-away" society?? Most mechanics today suggest swapping whatever whenever parts are faulty. The skill of repair isn't there anymore. Lazy? short-cut thinking? Trend? Perhaps it isn't economical and time worthy to repair something that is petty while kedai potong are easily available.
I agree with bro vr2turbo. Some faulty items can be repaired at all, as the items are sealed or integrated, thus fixing it is out of the question. Once broken, throw everything away.