Petrol Pressure Washer Pump Not Working [Proven Ways To Fix]

Your pressure washer is one of the most valuable tools in your home maintenance arsenal. But when it doesn’t work, it can be a major inconvenience. Not only can you not clean your home or car, but you may also be putting yourself at risk of injury.

If your petrol pressure washer pump isn’t working, there are a few things you can check to troubleshoot the problem. In this guide, I’ll walk you through the steps to diagnose and fix the issue. So you can get back to enjoying your clean, well-maintained home.

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Have you ever been frustrated by a pressure washer that just won’t start Or maybe it starts but doesn’t put out any pressure If so, you’re not alone. Petrol pressure washer pumps are one of the most common problems that homeowners face. But don’t worry, I’m here to help. In this guide, I’ll show you how to troubleshoot and fix a petrol pressure washer pump that’s not working.

Reasons Why Petrol Pressure Washer Pump Not Working

Dirty Fuel Filter

The fuel filter is a vital part of a pressure washer that helps to keep the fuel clean and free of contaminants. If the fuel filter becomes clogged, it can restrict the flow of fuel to the pump, causing it to not work properly. To check if the fuel filter is dirty, remove it from the pressure washer and inspect it for any signs of debris or blockages. If the filter is dirty, replace it with a new one.

Clogged Air Filter

The air filter helps to keep the air that is drawn into the engine clean and free of contaminants. If the air filter becomes clogged, it can restrict the flow of air to the engine, causing it to not work properly. To check if the air filter is dirty, remove it from the pressure washer and inspect it for any signs of debris or blockages. If the filter is dirty, replace it with a new one.

Low Oil Level

The engine in a pressure washer requires oil to lubricate the moving parts and keep them cool. If the oil level is low, it can cause the engine to overheat and eventually fail. To check the oil level, remove the oil dipstick and check the level of oil on the dipstick. The oil level should be between the full and add marks on the dipstick. If the oil level is low, add oil to the engine until the level reaches the full mark.

Bad Spark Plug

The spark plug is responsible for igniting the fuel in the engine. If the spark plug is bad, it can cause the engine to misfire or not start at all. To check if the spark plug is bad, remove it from the engine and inspect it for any signs of damage. If the spark plug is damaged, replace it with a new one.

Bad Fuel Injector

The fuel injector is responsible for delivering fuel to the engine. If the fuel injector is bad, it can cause the engine to misfire or not start at all. To check if the fuel injector is bad, remove it from the engine and inspect it for any signs of damage. If the fuel injector is damaged, replace it with a new one.

Bad Engine Control Module (ECM)

The ECM is the computer that controls the engine. If the ECM is bad, it can cause the engine to not start or run properly. To check if the ECM is bad, you will need to have it tested by a qualified technician.

How to Troubleshoot and Fix a Petrol Pressure Washer Pump

Symptoms of a Faulty Pressure Washer Pump

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

The pressure washer is not producing enough pressure.
The pressure washer is making a loud whining or grinding noise.
The pressure washer is leaking fluid.
The pressure washer is not starting.

If you notice any of these symptoms, it’s important to troubleshoot the problem and fix it as soon as possible. A faulty pressure washer pump can be dangerous, and it can also damage your property.

How to Troubleshoot a Pressure Washer Pump

To troubleshoot a pressure washer pump, you’ll need to follow these steps:

1. Inspect the pump for damage:
Look for any cracks, leaks, or other signs of damage. If you find any damage, you’ll need to replace the pump.

2. Check the oil level:
The oil level in the pump should be between the full and add marks on the dipstick. If the oil level is low, you’ll need to add oil to the pump.3. Check the air filter:
The air filter should be clean and free of debris. If the air filter is dirty, you’ll need to clean it or replace it.

4. Check the fuel filter:
The fuel filter should be clean and free of debris. If the fuel filter is dirty, you’ll need to clean it or replace it.

5. Check the spark plug:
The spark plug should be clean and free of corrosion. If the spark plug is dirty or corroded, you’ll need to clean it or replace it.

6. Check the fuel line:
The fuel line should be free of leaks. If the fuel line is leaking, you’ll need to repair or replace it.

7. Check the governor:
The governor controls the speed of the engine. If the governor is not working properly, it can cause the pressure washer pump to malfunction. You’ll need to have the governor repaired or replaced by a qualified technician.

How to Fix a Pressure Washer Pump

Once you’ve troubleshooted the problem, you can fix the pressure washer pump. The following are the steps to fix a pressure washer pump:

1. Replace the damaged parts:
If you find any damaged parts, you’ll need to replace them.

2. Add oil to the pump:
If the oil level is low, you’ll need to add oil to the pump.3. Clean the air filter:
If the air filter is dirty, you’ll need to clean it.

4. Clean the fuel filter:
If the fuel filter is dirty, you’ll need to clean it.

5. Clean the spark plug:
If the spark plug is dirty or corroded, you’ll need to clean it or replace it.

6. Repair or replace the fuel line:
If the fuel line is leaking, you’ll need to repair or replace it.

7. Have the governor repaired or replaced:
If the governor is not working properly, you’ll need to have it repaired or replaced by a qualified technician.

Preventing Pressure Washer Pump Problems

You can prevent pressure washer pump problems by following these tips:

Inspect the pump regularly for damage:
Look for any cracks, leaks, or other signs of damage.

Keep the oil level in the pump between the full and add marks on the dipstick:

Clean the air filter regularly:

Clean the fuel filter regularly:

Clean the spark plug regularly:

Inspect the fuel line regularly for leaks:

Have the governor checked regularly by a qualified technician:

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

Also Read: Portland Pressure Washer Nozzle Not Working

FAQs: Petrol Pressure Washer Pump Not Working

Why is my petrol pressure washer pump not working?

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

The pump is not getting enough fuel: Make sure that the fuel tank is full and that the fuel line is clear of obstructions.

The pump is not getting enough air: Check the air filter for dirt and debris, and make sure that the intake valve is open.

The pump is overheating: Allow the pump to cool down before operating it again.

The pump is damaged: If the pump is making strange noises or is leaking fluid, it may be damaged and need to be replaced.

How do I fix a petrol pressure washer pump that is not working?

To fix a petrol pressure washer pump that is not working, you will need to identify the problem and then take the appropriate steps to fix it. Here are some general troubleshooting tips:

Check the fuel tank and fuel line: Make sure that the fuel tank is full and that the fuel line is clear of obstructions.

Check the air filter: Remove the air filter and inspect it for dirt and debris. If the filter is dirty, clean it or replace it.

Check the intake valve: Make sure that the intake valve is open.

Allow the pump to cool down: If the pump is overheating, allow it to cool down before operating it again.

Replace the pump: If the pump is damaged, it will need to be replaced.

How can I prevent my petrol pressure washer pump from breaking down?

There are a few things you can do to prevent your petrol pressure washer pump from breaking down:

Use the correct fuel: Use only clean, fresh gasoline that is rated for use in pressure washers.

Maintain the pump regularly: Inspect the pump regularly for signs of wear and tear, and replace worn or damaged parts as needed.

Don’t overload the pump: Don’t use the pump to clean surfaces that are too large or too dirty.

Allow the pump to cool down: Allow the pump to cool down for a few minutes after each use.

What are the signs of a faulty petrol pressure washer pump?

There are a few signs that can indicate a faulty petrol pressure washer pump. These include:

The pump is not generating enough pressure.
The pump is making strange noises.
The pump is leaking fluid.
The pump is overheating.

If you notice any of these signs, it is important to have the pump inspected by a qualified technician.

What is the average cost to repair a petrol pressure washer pump?

The average cost to repair a petrol pressure washer pump can vary depending on the severity of the problem. However, you can expect to pay anywhere from $50 to $200 for repairs.

If the pump is damaged beyond repair, you may need to replace it. The cost of a new pump can range from $100 to $500.

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