How to Diagnose Fuel Pump Failure on A Vehicle

One common problem that you might find in a vehicle is a fuel pump failure. This might be manifested in various methods and it is important to know on how this comes about so that whenever you note it, you can eliminate it as the cause. This will help you in saving massive repair costs that might be needed in diagnosing the problem.

The first thing that you need to do is to start out your procedure by starting the vehicle. One common condition that can diagnose fuel pump failure is a hard start every time that you try to start your vehicle. On noticing this, you will need to open the fuel tank cap that is on your vehicle, have a person help you in turning the vehicle on. Upon listening on the fuel tank opening, you should hear a buzz if your fuel pump is working fine. If you do not hear this, then, you can start thinking n a fuel pump failure.

The next thing that you need to do is to go under the hood of the vehicle and check on the fuse to the fuel pump of the vehicle. The fuse is found in the fuse box, under the hood of the vehicle. Using the manufacturers installations, locate the fuel pump fuse and pull it out. Check if the fuse is burnt or not.

The next thing to look at is a relay click to the fuel pump that is mainly located under the hood. This relay should produce a click if it is working fine. Next, attach a fuel pump pressure gauge to see if any pressure is coming from the fuel pump.

Upon connecting the fuel gauge, you will need to turn the vehicle key and look at the maximum pressure that is attained. If no pressure is attained, you can then localize your fuel pump to be the cause of the problem and keep your car parts in a good condition.