What are typical car problems?

well it all depends on what type of car it is, how often it is ran, how long it sits, what speeds are normally driven, what type of driving is most done in it (in town or freeway), how old the car is, and how well maintained it is in the aspect of oil changes about every 3,000 miles and full tune ups about every 10,000 miles. So being a mechanic it can be anything really. from a fuel or air filter all the way up to something like an injector that has gone out, really though it is hard to say.