where is the purge vent valve and hose located,I need to check it, code 0466. on 2005 GMC Sierra Denali

Its a 05 sierra denali with the 6.0

by in Webster, MA on January 03, 2012
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1 answer 1 comment
ANSWER by , January 03, 2012
purge valve on on the front top of the motor. the vent is back by the tank mounted on the frame. you need a scan tool, smoke machine and voltmeter to verify if they are working. the code never identifies a bad part, just a failed system. Roy
COMMENT by , January 04, 2012
Thank you .