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Error Codedwalp 05-31-2006, 06:52 PM I have a 2002 Dakota, 4.7 v8. I have a error code, (Auto Zone said it's P0422) stating there is a slight vacuum leak in the fuel system somewhere. I've replaced gas cap & a hose underneath the truck at some box where the hose was cracked. The error code still comes back. Has anyone had this problem? What could it be? k5dan 06-11-2006, 05:14 PM had that kind of code on an explorer, turned out to be an intake gasket leak vBulletin®, Copyright ©2009, Jelsoft Enterprises Ltd.
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