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Old Apr 22, 2007 | 05:12 PM
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Default Diagnostics codes?

I was just wondering if anyone knows what this code means. Of if anyone can show me where to find out what it means.
It is: 10-PCM P0442 . Thanks
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Old Apr 22, 2007 | 05:13 PM
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It means your gas cap is open or you have an evap leak...

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Old Apr 22, 2007 | 08:36 PM
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Here is a listing of 'most', but NOT 'all' of the codes...This should help you alot...

www.stengel.net/diccodes.htm

It also tells you how to check the codes at the beginning if you are new to that as well..

~Maverick

Last edited by ~Maverick; Apr 23, 2007 at 05:57 PM.
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Old Apr 23, 2007 | 06:26 AM
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Thanks for the advice but I allready asked my wife whether she had the gas cap on all the way and that was not it. So Im not really sure what it is. I also checked that website that you showed me for all the codes but I cannot access it bc I am deployed right now. But thanks again for the help I will just tell her to erase the code and wait to see when it comes up again.
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Old Apr 23, 2007 | 10:47 AM
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Originally Posted by 77Stingray99
Thanks for the advice but I allready asked my wife whether she had the gas cap on all the way and that was not it. So Im not really sure what it is. I also checked that website that you showed me for all the codes but I cannot access it bc I am deployed right now. But thanks again for the help I will just tell her to erase the code and wait to see when it comes up again.

There is a vent in the gas cap. It's supposed to prevent vapor from
escaping, but let air in to prevent a buildup of vacuum in the tank.
These valves can leak, and set this code.

Any gas station that does emissions tests has a device to test the
valve in the gas cap. If your state doesn't test, then I guess that
doesn't help.

If the cap tests bad, or if the code keeps coming back and you
can't easily get the cap tested, go ahead and replace it.
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Old Apr 23, 2007 | 10:55 AM
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details on that code are here - http://www.gearchatter.com/viewtopic10340.php
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