P0449..again.. 2008 Silverado - Chevrolet Forum - Chevy Enthusiasts Forums

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Silverado & Fullsize Pick-ups The Silverado has been one of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900
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Old 12-09-2010, 03:34 AM
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Default P0449..again.. 2008 Silverado

Ok guys, first post and it's about P0449. Sorry... I did a search and have come up with many different issues it could be.

This is the situation...
2008 Silverado Z71 5.3

Check engine and Auto Zone says P0449 and to get a new gas cap. That didn't help at all and that's when I started looking here. I also have trouble putting gas in the truck. The gas backs up and the nozzle clicks off. have to pump really slow.

Also, what can I get to read/clear these codes myself? Is it possible to get a programmer/code reader?

Thanks for any help y'all can give me. -Sikes
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Old 12-09-2010, 10:25 AM
RacerX's Avatar
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Location: New York City USA
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evap canister purge solenoid.
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Old 12-09-2010, 10:27 AM
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Default evap sensor

i had the same problem.i have a 2006.you will need a new evap sensor located by the gas tank.your local dealer can supply you with a new sensor,hose,clamps,and filter.its an easy fix.about $90
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Old 12-10-2010, 12:22 AM
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i guess i will look into both of those and see if I need the sensor or the solenoid.

Also when I search for part numbers on purge solenoid I'm getting a few different results. Anybody know the part numbers for what I need to replace?

Last edited by b_sikes07@msn.com; 12-10-2010 at 12:47 AM.
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