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Predator 4000 Generator That Won’t Stay Running: 5 Fixes

Predator 4000 Generator That Won’t Stay Running: 5 Fixes

As someone who lives in a mobile home, I am incredibly grateful for our portable home generators. These machines make any type of travel living much easier, but they can run into their fair share of issues as well. For example, you may have noticed that your Predator 4000 starts but will shut down soon after. 

If the generator does start but won’t keep running for some reason, there are two main problems at hand. Either there is an overload, or the generator cannot access fuel or air because of obstructions. However, there are fixes available. 

  1. Reduce the overload.
  2. Change fuel filter.
  3. Replace the fuel valve.
  4. Clean the fuel pump.
  5. Replace or clean the carburetor.

Now that you know what you can do to fix this problem, you can read the rest of the article to see a step-by-step guide to making these changes. So, keep reading to the end of the article to find out what is causing the problem and how to maintain your generator. 

How To Fix A Predator Generator That Keeps Stopping

If your Predator generator keeps stopping after starting it, there is a problem. We have summarized some of the main issues that you may be facing, so you can know how to fix the problem with your Predator generator. 

Reduce The Load 

One of the first places to look when you see this issue is the load on the generator. Most generators have a circuit breaker already installed. This circuit breaker is there to shut down the generator when carrying a load above its capacity. This is to prevent more enormous risks of fire and explosion if the generator continues to run. 

How To Identify Overloading

If you have been using your Predator generator, there are subtle ways to know if the generator is overloading. For example, the sounds and vibrations from the generator will immediately sound off. However, if you can’t identify the sounds, there are other ways to check.

One of the most common symptoms of overloading a generator is that it will become overheated. This is because the generator is running far more than it can, and the cooling systems cannot keep up. The output can significantly go down, too, making your generator less efficient. Finally, you may also see some soot in the fuel exhaust. This is almost always a sign that there is overloading happening. 

The Effect Of Overloading

Overloading is extremely dangerous for your generator. And while a circuit breaker is frustrating, you can find yourself in a lot of trouble without the breaker itself. In some cases, the engine can fail, and it can completely stop as a reaction to overloading. This can permanently affect the generator’s engine speed, which may mean you will have to replace the generator. 

How To Fix Overloading

When it comes to fixing the issue of overloading, there are a couple of ways to remedy this issue. You can start by installing the generator in the right way. When getting your Predator generator, factor in the possible output. Always keep the load lower than the maximum output rating. 

If you need to install more devices, it is time to look for a generator with a greater output. Another way to keep the generator healthy and operational is to get maintenance done at regular intervals. The instruction manual will have specific instructions, and you can hire a professional to help you manage this task. 

Check To See If There Is Enough Fuel

Aside from the risks of overloading, there is always a chance your issue stems from the generator not getting enough fuel. The first thing to consider is that the gas tank is full. Always make sure you have enough to cover the run you are planning.

However, if this is a consistent issue, the problem could be obstruction. When your generator has clogs or obstructions, it can’t get the fuel it needs even when your gas tank is full. Now it’s time to inspect the fuel system and replace any clogged parts. 

Check The Fuel Filter

One of the first places to look when you are thinking of examining the fuel system is the fuel filter. If the fuel filter isn’t working as it should, it can’t supply the correct amount of fuel to the engine. This can cause the power to fluctuate or the engine to stall. 

If there is a complete clog, the generator will only work until there is some residual fuel in the lines, but the engine will stop entirely once that is used. Therefore, if the fuel filters have clogs, you need to replace them immediately. 

Check The Fuel Valve

In your generator, you have a fuel valve used to regulate how the fuel moves from one channel to the other. Sometimes, if the fuel valve has clogs, it can shut down. This can stop the generator from running once it starts. Replacing the fuel valve is the next step to fixing this issue. 

Check The Fuel Pump And Injectors

If changing the fuel filter or valves has not resolved the issue, it is time to look deeper within the fuel system. You also can check the fuel injectors and the pump. This part of the system takes the fuel directly to the engine. 

If your injectors have some damage, the generator will stop, but it will also consume more fuel. However, you can try and clean the injectors or replace them to solve the problem with your generator. 

Clean the Carburetor

The carburetor is the part of your fuel system that combines oxygen and water to allow the engine to convert fuel into energy. However, just like other generator parts, it is susceptible to clogs. One of the signs of clogs is that there would be sticky fuel leftover in the bowl. This common issue can happen over time if you’ve had your Predator generator for a while.

You need to drain the bowl and use a specialized cleaning kit for the carburetor to fix this. This helps you get rid of the sludge at the bottom, making the fuel system much more efficient. If the cleaning does not work, you may have to replace the carburetor altogether. Since a carburetor is easy to replace, many generator owners opt to replace the device rather than go through the hassle of cleaning it.


When your generator abruptly stops running, it is almost always a cause for concern. It is a good idea to pause, do some research, and do what you can to fix the issue. You can also contact a professional to help you diagnose the problem.