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Vortec Evap/emmissions Fumes

454ss

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454ss Enthusiast

454ss

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i have a 1997 k3500 with the 454 and am getting gas fumes outside the truck, sometimes worse than others. no leaks in any lines or tank and all of the vent/emmission hoses/lines are good. i have heard of a purge solenoid for the cannister or other parts going bad in the evap. emmission system and causing this problem. does anybody have any ideas as to what to replace and where its located? thanks for any help.

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