How to Fix Code P0449 Evap Pics,Video and part #'s

Discussion in 'General Chevy & GM Tech Questions' started by Enkeiavalanche, Jan 2, 2013.

  1. undertheradar

    undertheradar Rockstar

    Just fixed my po449 code. Bought the "vapor canister vent valve" from Napa. Part# 600-1627. Cost was 94.99 they sold it to me for "garage cost" at $77.99. This valve is connected to the filter. I just uncoupled the one clip, turned the solenoid 40 deg and pulled it out. This is located at the front of the gas tank, drivers side frame. Very easy fix for a BS system. Everyone's solenoid is normally open and when u start the vehicle it closes for vacuum purposes. My solenoid was bad so it was venting all the time. I also bought a foot of 5/8" hose and connected it to the charcoal cannister on the tank. So nothing is moved. I blame the failure on a POS Mexico made solenoid. I ain't buying the relocation thing.
     
  2. j cat

    j cat Rockstar 4 Years 1000 Posts

    change you fill up methods and you may be OK. if the canister is damaged from liquid fuel after a period of time this may return.
     
  3. undertheradar

    undertheradar Rockstar

    After a couple hundred miles, I now keep getting a PO446 code. I take the hose of the vent solenoid and can only blow air thru if the gas cap is off. Take the cap off and blow right thru it????
     
  4. ChevyFan

    ChevyFan The Sheriff Staff Member 5+ Years 5000 Posts

    Popular write-up! Nice work!
     

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