volvo penta fuel pump problems

Volvo Penta Fuel Pump Problems and Solutions!


A fuel pump is an important element of your boat motor. And you have a volvo penta fuel pump for your boat. It can get frustrating if you start facing problems using it. 

So you must know what the problem is and how to troubleshoot it. Then what are the volvo penta fuel pump problems? 

With your volvo penta fuel pump, you can face a lot of problems. Well, the problem could be loss of power and it’s pretty common. Sometimes the fuel pump primes and never stops. It is another regular issue. Finally, irregular fuel pump, voltage, and power issues can make you face difficulties. 

So what to do in this situation? Don’t worry, you won’t be needing a mechanical if you can easily trace the problem and troubleshoot it. 

We have covered the problems along with troubleshooting. So let’s dig deep into the article. 

Volvo Penta Fuel Pump Problems: 4 Problems & Solutions

Before you know the problem, you should know which model you have.

You should also be familiar with low-pressure, high-pressure fuel pumps. Even though both pumps put negative pressure to pass the fuel through the line. The low pressure between the tank and the pump can make the fuel vaporize itself in the supply line. 

Now let’s get to know the problems of volvo penta fuel pumps in detail-

Problem 1: Loss of Power issue 

Your boat might be losing power frequently. This can happen due to the fuel pump losing its power. Usually noticed at the top end. And your boat might not start again after that.  

This problem could also lead to a continuous low whining sound. So what to do in this situation?


First check which pump is making the noise. Check this with a screwdriver. You can feel the heat burn from there.

The low-pressure pump filters the fuel and fills it into the fuel rail. Here the fuel acts as a cooling agent if the high-pressure pump gets hot. Because when it is hot, it starts making noise.

So, check the fuel line fitting. It is attached to the side of the fuel cell.

The stock fitting has a screen. And sometimes the screen gets blocked with paint chips. As a result, the pump gets stuck.

Reverse the polarity of the pump wires. This will reverse the direction and unclog the pump. 

However, don’t try to remove the fuel line. This will lead to leaking and it won’t be possible to connect it back. 

Problem 2: Fuel Pump Primes and Never Stops 

You can notice this problem when you key the fuel pump. After it starts priming, it keeps spinning away. 

Here the engine remains off even though the key is on. But it does not show a problem when the key is off. 

It could get frustrating to keep the key on accidentally even though the engine is off.  And the pump keeps spinning. 


Sometimes, the air is sucked into the lines. As a result, the pump keeps running because it can’t create pressure. So, check that first. 

This problem isn’t something that dangerous. Often the pump doesn’t run all the time but the users don’t notice it.  The problem could also be volvo penta outdrive problems.  

One doesn’t need fuel pressure to run the engine with a carburetor. So, if your engine remains off even if the key is on. 

However, it is not advisable to keep the power on while the engine isn’t working. 

Problem 3:  Voltage Issue 

Sometimes, the fuel of the motor gets dumped into the car. The gas keeps getting dumped and as a result, your motor will run out of fuel in a short time. 

Usually, It happens when the voltage isn’t at the right rate.  


The voltage for the fuel pump is ideal at 12. Check that and fix it if needed. However, the rate can drop a little at a higher RPM. 

Also depending on the psi, you might also have the wrong pump for a carburetor.

So you should choose the ideal pump to use. You can always take suggestions or consult with a mechanic about this. 

Problem 4: Issue with Power 

Sometimes, you might take your engine’s RPM to a higher level. This creates a problem. The engine starts to brawl and loses its power.  

The power doesn’t turn on easily. It gets back on after shutting the engine completely.  You can also notice that a high buzzing sound is coming from the fuel pump. 

This can be tiresome and frustrating if it happens in the middle of running. So what is the solution to this? 


The problem usually happens when you have a clogged intel screen. You can find the intel screen on the back of the motor and fuel pump. 

For an electric pump, the screen is at the end. You won’t have to take the pump apart. By just removing the pump you can find the screen. 

However, in some cases, it could be behind the mounting bracket. So you’ll have to unscrew the bracket and you’ll find the screen. 

To do that remove the pump from the VST. Then take out the banjo bolt and detach the metal line. The screen is at the end of the banjo bolt of the pump. 

After that, you need to clean out the screen. To put everything back together, you will be needing O rings. Make sure the rings are designed for fuel. Otherwise, they will melt. 

And that’s how you can identify the problems with volvo penta fuel pump problems and solve them. Make sure you are doing this with safety as it contains working with fuel. 

Fuel problems usually arise due to excessive use. And it can affect the motor and engine. You can also face similar problems with johnson outboard fuel pumps. 

Regular maintenance of the pump can make it last longer. So, make sure to check up on the pump once in a while. 


Can I run a volvo penta out of water? 

You should not start to outboard without any water supply. It must be in water or connected to a hose. If you run without water, the vanes of the rubber water pump impeller can get damaged severely. 

How to tell if my outboard fuel pump has gone bad?

The common symptoms are the pump slowing down, sputtering, gas-guzzling, faulty diaphragm, etc. Also, bad signs with the motor or engine can be a reason for the fuel pump going bad. 

How long does it take to change a fuel pump? 

Changing a fuel pump is an easy process. It won’t take more than 1-2 hours. It is suggested to take help from someone who is an expert in changing one. 


And that’s all for volvo penta fuel pump problems. We have covered all the common problems along with their solutions.

However, if you are still unable to solve it, call the customer service or a mechanic.

That’s all for today! Stay safe.

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