Question about 2007 Cadillac CTS 3.6L

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My 2007 cadillac cts engin service light is on. I used OBD-2 code reader to read it, got a alarm code P0496. What's the meaning of P0496?thanks.

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Check the gas cap,also,it could mean the evap system is not working,or you have run out of gas recently,if all this checks out ok,then the tank is not venting properly.

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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