Pressure Washer - will not release pressure?

thespaughMay 30, 2009

I pulled apart and lubed the unloader valve on my Karcher pressure washer per the instructions I've seen on this site but it didn't fix my problem. When I release the trigger the pressure will not drop off and water comes flowing out the unloader - the engine bogs down and almost stalls - I end up having to shut it off. Any ideas what might be the problem???

Thanks in advance.

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Hey thanks guys for all the info on lubing the uploader valve.I have had the same problem for years on my Karcher /Costco pressure washer.Once again I started it up and had no pressure,. I followed the instructions to lube and reinstall the valve and voila it worked great and I used my machine all afternoon.This was after being told that it was a piece of junk and should be replaced by still another small motor repair shop.

    Bookmark   June 17, 2009 at 12:17AM
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Thanks so much. I pulled it apart, greased the uploader valve and it is working great

    Bookmark   June 23, 2009 at 4:09PM
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Anybody know where the unloader valve is on this Karcher power washer? See several views of it at the link below.

It is not unloading, it kills the engine when you release the trigger. Works good until then, lots of pressure. Thanks for any help.

Here is a link that might be useful: Power Washer

    Bookmark   May 25, 2012 at 2:25AM
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