When your MTD pressure washer has no pressure, the pump assembly is the most likely cause. A worn or damaged pump may keep the engine or electric motor running while the pressure washer is not building pressure, has low pressure, or loses pressure during use. If the pump is more than a few years old and the machine gets frequent use, replacing the pump assembly is usually the best repair. For a newer pump on a pressure washer used less often, the pump seals may be worn, so rebuilding the pump or replacing the seals can restore pressure. Inspect the pump and related components for damage before ordering parts, and make sure the water supply and inlet are clear. Enter your pressure washer's model number to find the exact replacement pump, pump assembly, or pump seals for your specific MTD machine. Repair Clinic provides parts and repair guidance for MTD pressure washer problems, including a pressure washer with no pressure, a pressure washer not building pressure, weak pressure, or a pressure washer pump not building pressure.
01 - MTD Pressure Washer Pump Assembly
You may need to rebuild or replace the pump. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump. If the pump is relatively new, and you don’t use the pressure washer often, either rebuild the pump or replace the pump seals.
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You may need to rebuild or replace the pump assembly. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump assembly. If the pump is relatively new, and you don’t use the pressure washer often, either rebuild the pump assembly or replace the pump seals.