Unlock the Right Part
for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.
Choose Product
Identify Problem
03
Find Solutions
HomeRepair HelpWorkForce RepairWorkForce Pressure washer runs rough Repair
WorkForce Pressure washer runs rough
When a Workforce pressure washer is running rough, surging, sputtering, hesitating, or cutting out under load, start with the carburetor. A clogged carburetor is the most common cause, especially when stale or ethanol-blended fuel has been left in a gas pressure washer during the off-season. Old fuel can leave a sticky residue that blocks the carburetor passages, main jet, or pilot jet. Clean the carburetor with carburetor cleaner, then rebuild or replace it if cleaning does not restore smooth operation. Next, inspect the fuel filter, which can also become restricted by deteriorated fuel, and drain the fuel tank before installing a new filter. A clogged fuel cap vent can limit airflow into the tank and cause the engine to run poorly or stall, so briefly loosening the cap can help confirm the problem. Also check the air filter, which can make the engine run rich when blocked, and replace it if dirty. A clogged pre-cleaner is possible but less common. Enter your WorkForce pressure washer model number to find the exact replacement carburetor, repair kit, fuel filter, fuel cap, air filter, or pre-cleaner for your machine.
01 - WorkForce Carburetor
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to run roughly. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
Enter model number to search for the required part specific to your product
Top Solution
02 - WorkForce Carburetor Repair Kit
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to run roughly. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
Top Solution
03 - WorkForce Fuel Filter
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the fuel filter and cause the engine to run roughly. If old fuel was left in the pressure washer, drain the old fuel from the fuel tank and replace the fuel filter.
Highly Likely
04 - WorkForce Fuel Cap
As fuel is consumed, the pressure in the gas tank rises. To relieve this pressure, the gas cap uses a small vent to allow air to enter the gas tank. If the gas cap vent is clogged, air won’t be able to enter the gas tank, and the pressure in the tank will begin to rise. When the pressure in the gas tank exceeds the pressure in the engine, the engine will stall or run poorly. To determine if the gas cap vent is clogged, try slightly loosening the gas cap and then starting the engine. If the loosening the gas cap allows the engine to stay running, this indicates that the gas cap vent is clogged. If the gas cap vent is clogge...
Highly Likely
05 - WorkForce Air Filter
The air filter may be clogged. If the air filter is clogged, the engine will get too much fuel and not enough air. As a result, the engine may run roughly. If the air filter is clogged, replace it.
Highly Likely
06 - WorkForce Spark Arrestor
The spark arrestor is a small screen that prevents the engine from emitting sparks. Over time, the spark arrestor can become clogged with soot. If the spark arrestor is clogged, the engine may run roughly. To unclog the spark arrestor, remove it and clean it with a wire brush. You may also replace the spark arrestor.
Highly Likely
07 - WorkForce Pre-Cleaner
The pre-cleaner might be clogged. However, this is rare.
Highly Likely
Frequently Asked Questions
Why is my WorkForce pressure washer running rough or surging?
Can a clogged fuel filter or air filter make my pressure washer run poorly?
Why does my WorkForce pressure washer run rough and then stall?
How do I find the correct WorkForce pressure washer carburetor or fuel filter?
What should I check before replacing the carburetor on a WorkForce pressure washer?