1. Is your High-Pressure Washer Pump Manufacturers pump leaking?
A leaking pump indicates a problem, such as a poor water seal/packing or a damaged ceramic plunger, or a small problem such as a leaking O-ring. Any of these problems may be minor problems at first, but long-term neglect may lead to bigger problems. Repair or replace the packing, check valve and damaged plunger immediately. The maintenance of the pump is the key to its durability.

2. Is your pump oil white, gray or milky white?
The pump usually has an oil body, which contains oil to keep the pump body lubricated. If the oil in the pump is any color other than the standard oil color, it indicates that there is water in the oil end of the pump. The oil must be drained and any oil seals or broken parts that allow water to enter the oil end of the pump/crankcase must be replaced.

3. Is there any tilt or play in the connecting rod, or can you easily swing the plunger and notice the play?
When you remove the pump head, there are usually three plungers behind the pump head and inside the pump body. They are connected to the connecting rod and the crankshaft. If you swing the plungers and they look loose, it's time to replace the pump. You will usually notice the pressure drop first, and in some cases there may be no pressure or pulsation effects. A damaged or loose piston guide means a complete replacement of the pump.

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