How to Fix the 12 Most Common Car Problems Yourself

3.Decreased Fuel Efficiency

A vehicle's fuel efficiency is closely tied to how well the engine operates. When the engine’s fuel system components, such as air filters, fuel filters, mass air flow sensors, and O2 sensors, get clogged or worn out, the engine will start consuming more fuel. Regular maintenance and timely part replacements are key to avoiding this problem and ensuring your car runs efficiently.