Pressure Washer: Engine losing power

The engine requires an adequate supply of clean air to run properly, so replace the air filter if it’s dirty. The engine also needs clean, fresh gasoline, so replace the fuel in the gas tank if the fuel is older than 3 months. If the carburetor is gummed up, the engine loses power, so check the carburetor and rebuild it if necessary.

These repairs may help solve your Pressure Washer problem:

Replace the pressure washer pump

Pump

The pump creates the water pressure when the engine is running. If the pump isn’t developing any water pressure, replace the pump assembly.

For manuals, repair guides, and specific part recommendations, enter your model number.

Tune up the pressure washer engine

Air filter

A tune-up restores the pressure washer’s engine to its peak operating condition. A tune-up includes changing the oil, cleaning the engine, replacing the air filter, checking the ignition system, inspecting the carburetor, adjusting the throttle and choke controls, and adjusting and lubricating all moving parts.

For manuals, repair guides, and specific part recommendations, enter your model number.

Replace the pressure washer carburetor

Carburetor

Over time, varnish from stale gasoline builds up in the carburetor, decreasing the amount of air/fuel mixture reaching the engine. Replace the carburetor if it's severely clogged with varnish or if the orifices are clogged with debris and can't be cleared using carburetor cleaner and compressed air.

For manuals, repair guides, and specific part recommendations, enter your model number.

Clean and rebuild the pressure washer carburetor

Carburetor rebuild kit

Rebuild kits are available for most carburetors. The kit contains essential components such as jets, pins, seals and gaskets for overhauling the carburetor. You can sometimes fix a fuel supply problem by disassembling, cleaning and rebuilding the carburetor.

For manuals, repair guides, and specific part recommendations, enter your model number.