Troubleshooting Snowblower Engine Issues: What You Need to Know

Winter can be a challenging season, especially when it comes to dealing with snow. If you own a snowblower, you know how important it is to keep it in good working condition. However, like any machine, snowblowers can sometimes experience engine issues. In this article, we will discuss common snowblower engine problems and provide some troubleshooting tips to help you get your machine up and running again.

Engine Won’t Start

One of the most frustrating problems you may encounter with your snowblower is an engine that won’t start. There are several possible causes for this issue. Firstly, check if the fuel tank contains enough gas. Running out of fuel is a common mistake that many people overlook. If the tank is empty or low on gas, refill it and try starting the engine again.

Another common cause of an engine not starting is a clogged fuel line or carburetor. Over time, debris can build up in these components and prevent fuel from reaching the engine properly. To fix this issue, clean out the fuel line and carburetor using an appropriate cleaner or by removing and inspecting them manually.

Engine Runs Roughly

If your snowblower’s engine starts but runs roughly or stalls frequently during operation, there may be an underlying problem that needs attention. One possible cause could be contaminated or old fuel. Gasoline that has been sitting in the tank for too long can degrade and lead to poor engine performance.

To resolve this issue, drain the old fuel from the tank and replace it with fresh gasoline. It’s also advisable to use a fuel stabilizer when storing your snowblower during warmer months to prevent future fuel-related problems.

Another potential cause of rough running is a dirty air filter. A clogged air filter restricts airflow to the engine, causing it to run poorly. Check your snowblower’s air filter regularly and clean or replace it as necessary to ensure optimal engine performance.

Engine Overheating

Snowblowers work hard to clear heavy snow, and this can sometimes cause the engine to overheat. If you notice excessive heat emanating from your machine or if it suddenly shuts down during use, it’s likely due to overheating.

The most common reason for engine overheating is a lack of proper airflow. Check the cooling fins on your snowblower’s engine and remove any debris or obstructions that may be blocking them. It’s also essential to ensure that the engine’s cooling system is functioning correctly by inspecting the radiator or cooling fan.

Additionally, using your snowblower in extremely wet or heavy snow conditions for an extended period can also lead to overheating. To prevent this problem, take breaks during prolonged use and allow the engine to cool down before continuing.

Engine Starts but No Snow Discharge

If your snowblower starts up fine but fails to discharge any snow, there are a few potential causes you should investigate. First, check if the auger belt is intact and properly tensioned. A loose or broken belt will prevent the auger from rotating correctly, resulting in no snow discharge.

Next, inspect the auger blades themselves for any signs of damage or wear. If they are worn out or damaged, they may need replacement. Additionally, check for any obstructions such as rocks or ice that may be blocking the chute or impeller assembly.


Owning a snowblower can make winter maintenance much easier; however, encountering engine issues can quickly put a damper on things. By understanding common problems and implementing troubleshooting techniques like those discussed in this article, you’ll be better equipped to keep your snowblower running smoothly throughout the winter season. Remember always to prioritize safety when working on your snowblower’s engine and consult a professional if you’re unsure about any repairs.

This text was generated using a large language model, and select text has been reviewed and moderated for purposes such as readability.