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My electric Karcher pressure washer is misbehavin'. When I press the trigger it starts fine but then the pressure drops off, then comes back , then drops off etc etc etc After several minutes of this it stays full on pressure and I can run it for a good 20 mins or so without a hiccup. But the moment I release the trigger and then squeeze again the hiccups start again. Various forums says its the unloader valve - but do I replace or just regrease ??

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You should replace it make sure there is nothing plugged though

Posted on Mar 27, 2008

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