If you have noticed that your engine keeps stalling or your gas mileage has decreased, it could be time to have your fuel system checked. The fuel system is one of the hardest worked areas of your engine. It can become clogged, dirty and inefficient if not maintained correctly and on a regular basis.
Fuel pump problems can also cause your engine to become less efficient. Problems can range from a bad fuel pump to poor pressure. When there is not enough pressure, the car will not start and can even stop while the engine is running. If the pressure is okay, but volume is no longer satisfactory, the engine will operate but might lose power. And if your fuel pump fails completely, the engine will fail to start at all. The fuel pump is often the first port of call during fuel system checks.