Pressure Washer Fuel Pump Not Working [How To Fix It Instantly]

There’s nothing more frustrating than having a pressure washer that won’t start. Not only is it inconvenient, but it can also be dangerous. If you’re not careful, you could end up spraying yourself with hot water or damaging your property.

If your pressure washer’s fuel pump isn’t working, don’t despair. There’s a good chance you can fix it yourself. In this guide, I’ll walk you through the steps of troubleshooting a pressure washer fuel pump. I’ll also provide tips on how to prevent this problem from happening in the future.

So if your pressure washer is giving you trouble, keep reading. I’ll help you get it up and running in no time.

Reasons Why Pressure Washer Fuel Pump Not Working

Reasons Why Pressure Washer Fuel Pump Not Working

No fuel in the tank

The most common reason for a pressure washer fuel pump not working is that there is no fuel in the tank. Make sure the tank is full of fuel and that the fuel valve is open.

Clogged fuel filter

A clogged fuel filter can restrict the flow of fuel to the fuel pump, causing it to not work properly. Clean or replace the fuel filter as needed.

Bad fuel pump

If the fuel pump is bad, it will not be able to pump fuel to the engine. The fuel pump can be tested with a multimeter to check for continuity. If the fuel pump is bad, it will need to be replaced.

Electrical problem

There could be an electrical problem with the fuel pump, such as a bad connection or a faulty wire. Check the wiring to the fuel pump for any damage or corrosion. Repair or replace the wiring as needed.

Pressure washer not primed

If the pressure washer is not primed, the fuel pump will not be able to pump fuel to the engine. Priming the pressure washer involves pumping the primer bulb until fuel comes out of the nozzle.

How to Troubleshoot And Fix: Pressure Washer Fuel Pump Not Working

Symptoms of a Bad Pressure Washer Fuel Pump

There are a few telltale signs that your pressure washer fuel pump may be bad. These include:

The pressure washer won’t start or starts and then dies immediately.
The pressure washer makes a whining or buzzing noise when it’s running.
The pressure washer’s engine runs rough or stalls.
The pressure washer’s fuel tank is full, but the pressure washer won’t build pressure.

How to Troubleshoot a Pressure Washer Fuel Pump

If you’re experiencing any of the symptoms listed above, it’s a good idea to troubleshoot the fuel pump to see if it’s the problem. Here’s how to do it:

1. Check the fuel filter:
The fuel filter is a small, cylindrical device that’s located near the fuel tank. It’s responsible for filtering out dirt and debris from the fuel before it reaches the fuel pump. If the fuel filter is clogged, it can restrict the flow of fuel to the fuel pump, causing the pressure washer to not start or run properly. To check the fuel filter, remove it from the fuel line and inspect it for damage. If the filter is clogged, replace it with a new one.

2. Check the fuel line:
The fuel line is a small, flexible hose that connects the fuel tank to the fuel pump. If the fuel line is damaged, it can leak fuel or restrict the flow of fuel to the fuel pump. To check the fuel line, inspect it for damage. If the fuel line is damaged, replace it with a new one.3. Check the fuel pump:
The fuel pump is a small, electric motor that’s responsible for pumping fuel from the fuel tank to the engine. If the fuel pump is bad, it won’t be able to pump fuel to the engine, causing the pressure washer to not start or run properly. To check the fuel pump, remove it from the pressure washer and test it with a voltmeter. If the fuel pump doesn’t produce any voltage, it’s bad and needs to be replaced.

How to Fix a Pressure Washer Fuel Pump

If you’ve determined that the fuel pump is bad, you’ll need to replace it. Here’s how to do it:

1. Disconnect the fuel line from the fuel pump:

2. Remove the fuel pump from the pressure washer:
3. Install the new fuel pump:

4. Reconnect the fuel line to the fuel pump:

5. Start the pressure washer and test it to make sure it’s working properly:

Preventing Pressure Washer Fuel Pump Problems

The best way to prevent pressure washer fuel pump problems is to:

Keep the fuel tank full:
A full fuel tank helps to prevent the formation of condensation, which can damage the fuel pump.

Use high-quality fuel:
Using low-quality fuel can damage the fuel pump.

Change the fuel filter regularly:
A dirty fuel filter can restrict the flow of fuel to the fuel pump, causing the pressure washer to not start or run properly.

Inspect the fuel line regularly:
A damaged fuel line can leak fuel or restrict the flow of fuel to the fuel pump.

Have the fuel pump checked regularly:
A qualified technician can inspect the fuel pump for damage and make sure it’s working properly.

By following these tips, you can help to prevent pressure washer fuel pump problems and keep your pressure washer running smoothly.

Also Read: Pressure Washer Governor Not Working

FAQs: Pressure Washer Fuel Pump Not Working

Why is my pressure washer fuel pump not working?

There are a few possible reasons why your pressure washer fuel pump may not be working. Here are some of the most common:

The fuel filter is clogged: This is a common problem, especially if you use your pressure washer frequently. The fuel filter traps dirt and debris, and if it becomes clogged, it can restrict the flow of fuel to the pump. To fix this problem, simply remove the fuel filter and clean it with a degreaser.

The fuel line is kinked or damaged: If the fuel line is kinked or damaged, it can also restrict the flow of fuel to the pump. To fix this problem, you will need to replace the fuel line.

The fuel pump is bad: If the fuel pump is bad, it will not be able to pump fuel to the engine. To fix this problem, you will need to replace the fuel pump.

The engine is bad: If the engine is bad, it will not be able to use the fuel that is being pumped to it. To fix this problem, you will need to replace the engine.

How do I fix a pressure washer fuel pump?

To fix a pressure washer fuel pump, you will need to identify the problem and then take the necessary steps to fix it. Here are the steps involved in fixing a pressure washer fuel pump:

1. Identify the problem: The first step is to identify the problem with the fuel pump. This can be done by checking for any of the following:
A clogged fuel filter
A kinked or damaged fuel line
A bad fuel pump
A bad engine
2. Fix the problem: Once you have identified the problem, you can then take the necessary steps to fix it.
If the fuel filter is clogged, you can clean it with a degreaser.
If the fuel line is kinked or damaged, you can replace it.
If the fuel pump is bad, you can replace it.
If the engine is bad, you can replace it.

What are the symptoms of a bad pressure washer fuel pump?

There are a few symptoms that can indicate that your pressure washer fuel pump is bad. These include:

The pressure washer will not start or will start and then stall.
The pressure washer will not produce any pressure.
The pressure washer will produce low pressure.
The pressure washer will make a whining or buzzing noise.

How much does it cost to replace a pressure washer fuel pump?

The cost of replacing a pressure washer fuel pump will vary depending on the make and model of your pressure washer. However, you can expect to pay anywhere from $50 to $100 for a new fuel pump.

How can I prevent my pressure washer fuel pump from failing?

There are a few things you can do to prevent your pressure washer fuel pump from failing. These include:

Use high-quality fuel: Using low-quality fuel can damage the fuel pump.

Keep the fuel filter clean: A clogged fuel filter can restrict the flow of fuel to the pump.

Inspect the fuel line regularly: A kinked or damaged fuel line can restrict the flow of fuel to the pump.

Store your pressure washer in a cool, dry place: Extreme temperatures can damage the fuel pump.

By following these tips, you can help to extend the life of your pressure washer fuel pump.