code po449 - Truck Forums

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Old 09-15-2009, 05:47 PM
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Default code po449

I have a 2006 chev silverado and the check engine light came on.
The code that showed up was PO449.
Can anyone help with this problem?
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Old 09-15-2009, 07:56 PM
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Here is an link to another website that talks about this issue...
Hope it helps you out!
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Old 09-15-2009, 09:12 PM
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Either bad gas cap or vent solenoid is bad.
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