2005 GMC Sierra Denali Q&A

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

Its a 05 sierra denali with the 6.0 -
Answer 1
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 -