Troubleshooting Fuel Pump – Common Problems

A fuel pump is an essential component that feeds fuel to the engine. If your car is cranking due to a faulty fuel pump, it is time to visit a fuel pump repair near me. A fuel pump can become flawed due to several different reasons and show different signs in each case. The inspection and diagnosis of the exact problem and solution to it can be tricky sometimes. Diesel Component Inc. has been around since 1977 and is providing the highest quality services and branded products. Here you will get excellent and prompt service for your faulty fuel pump at the most reasonable price.


Common problems with fuel pumps

Different types of fuel pumps have different components. This makes it apparent that the problems and their symptoms will also be diverse in these pumps. We consider two main types of pumps that a fuel pump repair near me is more likely to witness.


Problems in electric fuel pumps

Electric fuel pumps have many connections that multiply the risk of an electric circuit malfunction. The following are some common issues in these types of fuel pumps.


  • Electric problems

An electric circuit breakdown disrupts the power to the fuel pump. It stops working and the engine stalls after burning the left of fuel in the pipeline. The engine would switch between stalling and restarting with jerks.

  • Mechanical problems

The fuel pump consists of many moving mechanical parts that are prone to abrasion or become loose. Many mechanical components can seize together leaving the pump non-functional. This results in similar indications as in electric problems. The mechanical issues are progressive and give you time to reach to fuel pump repair near me.

  • Clogged strainer

There is a strainer at the intake end of the fuel pump. This acts as a fuel filter. It may be clogged by the dust or rust in the fuel tank. It causes the engine sputters due to the uneven fuel supply.

  • Whining noise

You may hear a loud whining noise from the rear especially when the fuel tank is not full. If this noise stops by refilling, it is time to replace the fuel pump.


Problems of indirect injection (GDI) high-pressure fuel pumps

The direct injection of high-pressure fuel pumps is more recent and more efficient than their predecessors. However, they are also prone to many issues that would take you to a fuel pump repair near me.


  • Mechanical problems

Regular maintenance is critical to GDI fuel pumps. If there is mechanical damage, the pressure in the system decreases. The high pressure is also not that high anymore and your vehicle is forced in a LIMP mode. This mode reduces the maximum speed of the vehicle to protect damage to the engine.

  • Pressure and temperature sensor

The GDI pump depends on the pressure and temperature sensors for its functioning. If the sensors are misreading, it may lead to jerking, stalling or entering into LIMP mode. 

  • Fuel leak

When the internal or external fuel pump leaks, it reduces the pressure. This leads to jerking, stalling or overheating of the pump. Your vehicle may take longer cranking to fire up.

  • Software problems

Everything in GDI fuel pumps is controlled by the ECM software. It is important to ensure that your software is updated with the latest releases by your manufacturer.