Fuel pumps are the heart of a direct injection system; if your fuel pump is not working properly you can expect your engines to develop faulty injectors. This is expected as studies have shown that about 30% of fuel injector problems are related to a lack of fuel supply, usually caused by a failing or faulty fuel pump. In modern vehicles with fuel injectors, you need a constant 40 to 60 psi of pressure to operate the thing; if it is outside this range, the engine seriously won’t be happy.
A fuel pump that is failing can have a difficult time accomplishing the required amount of pressure in the fuel system. According to automotive engineer John Smith, “zero proper pressure here means the fuel pump cannot feed injectors as they need and that equals uneven mixture and probable cramping.” It decreases fuel efficiency up to 20% causing a major impact on the overall performance of the vehicle.
Also, low fuel flow can cause the injectors to heat up. According to the Society of Automotive Engineers, extended exposure to starving conditions can heat injectors beyond safe limits and lead to up to a 15% increase in failure rates. These sensors detect the fuel pump and injector, but most real-world drivers report rough idling or reduced acceleration — symptoms consistent with problems both with the fuel pump and injectors.
Contaminants are another really big one Fuel injector debris: With your fuel pump on its way out, there won’t be a part that’s properly filtering out the sediment and grime in your system, which will in turn wind up as junk in your fuel injectors. In fact, 25% of all cases involving fuel delivery issues will cause an engine misfire says the American Automobile Association. If not dealt with, this can be expensive to fix — about $500 on average for just the injectors.
Advices Proper maintaining of the fuel system should be in place so as these such can prevent. According to an automotive technician, it is better that the fuel pump is in a good quality and condition so that every 30,000 miles driving cycle will be more efficient. “Drivers can reduce chances of unexpected breakdowns and expensive repairs if they take the time to service or maintain their fuel systems,” he says.
While failing fuel pumps can definitely cause fuel injectors to fail from low pressure, overheating and contamination; in addition to that. All too often failure of the fuel injectors is preceded by signs that some component or function in your vehicle has ceased performing well, which can be avoided simply by being observant to certain changes. The better we understand how each of these relationships work the harder it can be to keep a car up and running until the end of its life. Taking care of that one single Fuel Pump can save your whole network from through lots of problems and catastrophic failures.