When your WorkForce gas pressure washer starts then stalls, the carburetor is the most likely cause. Stale or ethanol-blended fuel left in the carburetor can evaporate and leave a sticky residue that clogs the passages, causing the pressure washer to start then die or start but not stay running. Clean the carburetor with carburetor cleaner, then rebuild or replace it if cleaning does not restore steady operation. A carburetor repair kit may provide the gaskets, needle valve, and other parts needed for the repair. Next, check the fuel filter, especially if old fuel was left in the tank, and replace it after draining the tank. A clogged fuel cap vent can also stop fuel flow by creating a vacuum, so loosen the cap briefly while the engine runs to test it. If the engine still stalls, inspect the air filter and replace it if clogged. A blocked 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 stall. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
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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 stall. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
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 stall. If old fuel was left in the pressure washer, drain the old fuel from the fuel tank and replace the fuel filter
As fuel is consumed by the engine, the level in the fuel tank lowers. To make up for this, the fuel cap uses a small vent to allow air to enter the tank. If the fuel cap vent is clogged, air won’t be able to enter the tank and a vacuum or “vapor lock” will occur. This stops the flow of fuel to the carburetor causing the engine to stall. To determine if the fuel cap vent is clogged, try slightly loosening the cap and then starting the engine. If loosening the fuel cap allows the engine to stay running it is likely clogged and will need to be replaced.
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 stall. If the air filter is clogged, replace it.