P0496 GMC - purge valve location

Question

Where is the evap purge valve located and how do you test it. I've already replaced the evap vent solenoid near the fuel tank and the check engine light came back on after clearing it, with the same p0496 error

Answer 1

Hi there,

Here is some more info regarding this code.

P0496 GMC - Evaporative Emission System Flow During Non-Purge

Read more: https://www.autocodes.com/p0496_gmc.html