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How to remove unloader valve from a craftsman pressure washer.

Machine was working fine for about 1/2 hour,then engine shut off. Restarted engine which ran fine until about about 5 seconds after the wand trigger is pulled, then shut down. water pressure is good until
engine stopped. Restarted, engine ran fine again until about 5 seconds after trigger was pulled, then quit again.
Now engine won't run at all. I feel the unloader valve may be causing the grief, and I attempted to remove it to check, but can't free it. Is the one small nut all that is fastening the valve assembly to the pump body? If so, I am guessing corrosion is binding the valve in place. Looking for advice on the matter. Thanks in advance. Oz

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Craftsman , Washers , Pressure Washers
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4 Answers from these members:
Joey S
Without having the model number I will not be able to provide any model specific instructions. If the engine died while the wand trigger was pulled and spraying then the unloader valve is not likely causing the engine to die. The unloader valve opens to by-pass the pump when the trigger is not pulled otherwise it would place a load the engine if it did not by-pass and cause the pump to overheat. I believe its carburetor issue causing the engine to die when the trigger is pulled. The unloaded valve is generally removed by removing the unloader cap.

If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations:

Sears Home Services

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by Joey S Earned 1,944 community points in Craftsman
June 1st, 2010
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