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2001 PT cruiser code P0401

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Old 21 Apr 2014, 02:55 pm
Fresh Cruiser
Join Date: Apr 2014
Posts: 2
Default 2001 PT cruiser code P0401

Thank you for the location. Now the questions. I gather that is a diaphram on the top and that a tube may go to the switch. Can I take this apart and clean it out? If this works how do I cancel the engine light and code ? Could it be a faulty switch and can that be replaced. How would you test it? Thank you
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Old 21 Apr 2014, 03:42 pm
Cool Cruiser
Join Date: Feb 2009
Posts: 420
Default Re: 2001 PT cruiser code P0401

When I got the code and replaced the valve, I discovered that the metal tube to it was pretty much clogged - that may have been the problem instead of the valve itself being bad. I cleaned it out and put on the new valve. Disconnecting the battery removed the code for me and it has not come back after 3 years or so.
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