2005 GMC Sierra 1500 4wd 5.3L Flex Fuel P0449 GMC - where is evap located so i can replace it?
P0449 GMC - Evaporative Emission Vent Valve Solenoid Malfunction Read more: https://www.autocodes.com/p0449_gmc.html
Start by checking the fuel cap and if the cap is OK the next step is to check for vacuum leak. If no leak are found you may have to replaced the EVAP Vent Control Valve.
Extended Cab
Regular
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