Engine Belts And Pulleys problems of the 2014 Dodge Caravan

I have 2 complaints. One is that the driver's side window doesn't always work. It works sometimes and other times does not. It's as if there might be a loose connection or something. The second is that there is a constant ticking noise in the engine. There is no sign of oil leak. I check it regularly. My thought is perhaps a valve or a belt. But I'm not sure. The vehicle still drives. It has not broken down.