Before your car’s engine can perform optimally, there is a need for appropriate fuel delivery to this part (engine). Your car’s fuel system is made up of about four mechanisms. These are the fuel pump, the fuel rail, the fuel pressure sensor, and the ECU. The function of the ECU is to coordinate and monitor what takes place in the fuel system.
The role of a fuel pump in the fuel system is to collect the fuel from the fuel tank and delivers it to the fuel rail. Once the fuel rail gets the fuel, it transfers it into the cylinder by acting on the knowledge of the fuel pressure sensors.
General Solutions to Low Fuel Pressure
If it happens that the pressure doesn’t conform to what is recommended by the car’s manufacturer, what happens next is unresponsiveness of the car’s engine.
As you read further, you will understand some of the symptoms and causes of low fuel pressure, and how they can be managed.
When you can fire or run your car properly, it shows a proper delivery of fuel to the fuel cylinders.
In case of any delays, while starting your car, it shows there is an issue with the fuel system. This experience can be as a result of a clogged fuel pump. To correct this issue, take your car to a professional and have the fuel pressure regulator replaced.
While driving, if you experience any delay in your car’s engine, what this is telling you is that your fuel pump is faulty. If a car’s engine stalls, it means the engine is not getting the right quantity of fuel needed to support combustion. To correct this issue, all you have to do is to change or clean the fuel lines.
When it Takes Longer Than Usual to Start your Car
This is another sign of low fuel pressure. When it takes more than one attempt to bring your car’s engine to life, it tells you there is a problem that needs to be fixed with your fuel pressure. To correct this issue, all you need to do is to either have the fuel lines changed or cleaned. A professional will tell you about the right option to pick from in such a situation.
The Check Engine Light Turns On
Most of the cars we have on the road today comes with a fuel pressure sensor that can tell you if there is an issue with the fuel system. If there is an issue with the fuel system, this prompts the fuel pressure sensor to bring the check engine light to life.
In this case, a problem with the fuel pressure comes with a code which can be checked or read with the help of a diagnostic scanner. The general cause of this is a clogged fuel filter. To find a solution to this problem, all you have to do is to change the fuel pump relay.
Misfires or Faulty Spark Plugs
when you experience a low fuel pressure, it sometimes renders the spark plugs that powers the fuel in the engine’s cylinder useless. While changing your spark plugs, if you notice they have turned bad or require a replacement right before the expected or actual time of replacement, it is an indication of low fuel pressure.
This is as a result of a bad fuel pump. Correction is simple. All you have to do is to mend the wirings that connect to the fuel pump.
Although low fuel pressure can be as a result of so many factors just as we have indicated earlier in this article. But still, there are some common approaches or solutions that can be adopted while trying to correct or fix this problem of low fuel pressure with your car.
Solutions of Low Fuel Pressure
Replace the Screen Filter
When you notice any of the symptoms of low fuel pressure that are listed in this article, the first thing you should do is to look at the screen filter. The function of the screen filter is to keep the fuel pump away from dust and other particles that can block the fuel pump in little or no time.
A clogged screen filter can hold back movement or distribution of fuel to the fuel pump and the fuel cylinders. So, if you notice any signs or symptoms of low fuel pressure, it is advised you clean or change the screen filter, whichever case may be. Once you do this, the problem gets resolved.
Replace the Fuel Filter
Because you always fill your fuel tank with purified gasoline or diesel doesn’t automatically prevent some contaminants from getting through your fuel tank. That is why a fuel filter is important. The work of the fuel filter is to clean the fuel from any form of contaminants.
The fuel that passes through a fuel filter is considered clean enough for your car’s engine. Getting a fuel filter is not difficult. Not only that, fuel filters are affordable and very easy to change without the help of a mechanic.
Have your Fuel Pressure Regulator replaced
The role of a fuel regulator is to regulate the quantity of fuel that flows out of the fuel pump. In the case of a bad fuel pressure regulator, it becomes totally impossible for the fuel rail to get the right quantity of fuel. When the fuel rail fails to receive the right quantity of fuel, the engine will not be able to perform optimally.
Make sure you have Enough Fuel in the Tank
in the case of inadequate fuel in the fuel tank, it becomes almost impossible to maintain the fuel pressure. At any point in time when any of the listed symptoms of low fuel pressure mentioned in this article is experienced, the first thing to do is check if your car has enough fuel in its tank before going further to see what the problem is.
Keep an Eye on the Voltage
The fuel pump generates its pressure by the aid of electricity. For the fuel pump to perform optimally, there is a need for it to generate the right voltage of electricity. If the fuel pump fails to generate the right voltage of electricity, the fuel won’t flow or be distributed at the right pressure which may cause your car to lose its effectiveness.
The issue of fluctuation in voltage is not something that happens every time (It is very rare). But in case it happens, you can tackle this problem by having a quick check on the battery and the cables that distribute electricity to the fuel pump.