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In this video i have a look at a 2003 Chevrolet 1500 that has a P0446 Canister Vent Valve Performance code stored in it. Before you load the parts cannon have a look at the system and see if the vent valve is really the issue. -Enjoy!
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49 thoughts on “Chevrolet 1500: p0446 evap vent performance”
  1. Avataaar/Circle Created with python_avatars E M says:

    Awesome tutorial, thank you very helpful

  2. Avataaar/Circle Created with python_avatars Zachary Staman says:

    GM should be held liable for this. A 50 dollar part failed pulling fuel vacuum through the canister ruining the entire system

  3. Avataaar/Circle Created with python_avatars Floyd ervin says:

    eric o such a good guy always takin care of customers

  4. Avataaar/Circle Created with python_avatars powerram92 says:

    For a diy do you recommend getting the autel or just spend the money on the Bosch?

  5. Avataaar/Circle Created with python_avatars Mechanicsville804 says:

    Thanks Eric, I really enjoy the videos. I’m a mechanic and I still don’t understand the EVAP System and purpose if you can explain and clarify I would appreciate it.
    John 3:16
    For God so loved the world that he gave his only begotten Son that whosoever believeth in Him shall not perish but have everlasting life.

  6. Avataaar/Circle Created with python_avatars Brandon Foy says:

    thanks so much for that very informative

  7. Avataaar/Circle Created with python_avatars Marcel Spinks Jr aka Mj says:

    Would that code cause the truck to shut off

  8. Avataaar/Circle Created with python_avatars philip gerbin says:

    Will a gas cap cause a p0446 also?

  9. Avataaar/Circle Created with python_avatars James says:

    I have a 04 silverado 1500. I'm a truck driver so I decided I don't have time to be messing around with an almost 20year old truck. I replaced gas cap, canister and solenoid all at once. So far no return codes.

  10. Avataaar/Circle Created with python_avatars John E. Carr says:

    Great video.

  11. Avataaar/Circle Created with python_avatars Thomas McCaslin says:

    Can this cause a vacuum leak code?

  12. Avataaar/Circle Created with python_avatars Billydog15 says:

    I have a 2003 Chevy Silverado how many amps is the fuel pump supposed be

  13. Avataaar/Circle Created with python_avatars Ragen Rat says:

    HOW do I PULL out the intake purge switch?

  14. Avataaar/Circle Created with python_avatars Birdiemom Carol says:

    I have a 2003 Chevy Silverado 1500 with only 68,000 miles with a code p0446. Checked the gas cap, used a code reader and reset/erased code and engine light went off. Drove down the street and came back on. So…any ideas? Thanks

  15. Avataaar/Circle Created with python_avatars Tom Grabski says:

    Wish your shop was up here outside of Buffalo ny. I have a 07 classic 2500hd 6.0l with p0445 large leak changed purge,vent and new one gas cap any ideas also ran a scan the other day had p0300 random misfire. Just changed plug and wires about 2weeks ago. Any ideas?? Can a large evap leak cause p0300 hopefully you can steer me towards something else to look into love your channel. Thanks man

  16. Avataaar/Circle Created with python_avatars Uncapabrew says:

    Dont move! Stay right here 🤣🤣👍🏻👍🏻

  17. Avataaar/Circle Created with python_avatars David Timmel says:

    Scotty Kilmer says to never go the next dollar while filling your gas tank once the pump handle clicks off. Don't put in a cent more. Overfilling will flood your charcoal cannister and mess up your purge valve. Good advice, I think.

  18. Avataaar/Circle Created with python_avatars Dale and Darren Fredrickson says:

    Very informative and fun to watch! Thanks for sharing, what a great video.

  19. Avataaar/Circle Created with python_avatars scott shelton says:

    You are the best. Keep it up. Your family has to be proud of you for the knowledge, and the time it takes to make theses videos.

  20. Avataaar/Circle Created with python_avatars Rick Freeman says:

    Hey buddy your info always helps me out. Being an auto body tech I noticed the way you smacked on the purge valve. You ever thought of workin dents?? I thought I was the only one who forgot to plug things in. You were on a roll buddy! I just gotta give you a little crap!! Thanks for your helpful video's they really help me out on the mechanic side of things. From the Big Sky Country of Montana!! R.F.

  21. Avataaar/Circle Created with python_avatars Edward Quintero says:

    Watched the 2003 Chevy PO446 repair video. This mech is a professional that use diagnostic troubleshooting to confirm the truck malfunction. Informative demonstration to repair its problem. Bravo!!!

  22. Avataaar/Circle Created with python_avatars Joe P says:

    I have no idea what I’m I’m watching – obd-ii brought me here

  23. Avataaar/Circle Created with python_avatars Cleveland216 says:

    So what was the issue here?

  24. Avataaar/Circle Created with python_avatars Travis Meek says:

    Dude, great content and thorough diagnostics!

  25. Avataaar/Circle Created with python_avatars M B says:

    Trump?🤮. Come on Eric O I thought you had better taste than that trash

  26. Avataaar/Circle Created with python_avatars Carl Chrusciel says:

    What if you can't build pressure

  27. Avataaar/Circle Created with python_avatars Joni says:

    I have the same truck. would an evap system failure cause misfires and backfires? the engine checks out fine on a vac/compression test and all new ignition that tests ok. tech w/ snapon zeus said everything is perfect on engine data. getting p0445 and general misfies on the computer. chasing a ghost here -.-

  28. Avataaar/Circle Created with python_avatars Arthur Jones says:

    Thank you for getting it done use your tips

  29. Avataaar/Circle Created with python_avatars Christopher Bradley says:

    Love watching your videos. Your sense of humor make working on cars interesting and fun……lol

  30. Avataaar/Circle Created with python_avatars JL16 says:

    My canister had engine oil coming out of one of the ports. Not a lot, maybe like index finger tip wise. Is that normal? Engine light turn off for now after blowing it with the compressor. Also no dust came out like some of the other videos.

  31. Avataaar/Circle Created with python_avatars Nick campbell says:

    I've got an 05 with the same code auto zone printout said evap canister.

  32. Avataaar/Circle Created with python_avatars Simple Electronics says:

    We have these issues on CRVs when customers try to squeeze more fuel into their tank after the pump clicks off, the fuel gets in and eats the sponge filter that keeps the charcoal in and little tiny bits of charcoal get sucked into the purge and blocks it open. We have to replace the canister, the purge valve and blow out the line in-between. Hope it was worth it to hit 50$ exactly on the pump!

  33. Avataaar/Circle Created with python_avatars John Dondero says:

    I’ve watched a lot of your videos. Love that your a great family guy and your videos show you are an expert in the field. Tx for helping me learn on stuff. 👍

  34. Avataaar/Circle Created with python_avatars Eric Kelly says:

    I had a issue like this but I crossed the line inside hopefully didn't do that doing a job twice sux

  35. Avataaar/Circle Created with python_avatars Steve Tedesco says:

    Great auto tech. Eric the best

  36. Avataaar/Circle Created with python_avatars Ritchie Meza says:

    how does gas get/leak into the canister?

  37. Avataaar/Circle Created with python_avatars Roger Garcia says:

    Thank you very much, you have helped me out tremendously

  38. Avataaar/Circle Created with python_avatars California Stroll says:

    Great video sir. Love the commentary you sound like the sort I could sit and have a drink with. thanks for guiding us through.

  39. Avataaar/Circle Created with python_avatars 1337penguinman says:

    I can't have been the only one yelling at the screen that the valve was still unplugged.

  40. Avataaar/Circle Created with python_avatars Nabeel Jawad says:

    Hi Erick

  41. Avataaar/Circle Created with python_avatars Kevin B. says:

    Great Explanation, I enjoy your videos.

  42. Avataaar/Circle Created with python_avatars Donald Rackley says:

    Great video Mr owe

  43. Avataaar/Circle Created with python_avatars Donald Davies says:

    clear and succinct. a joy to watch . thanks

  44. Avataaar/Circle Created with python_avatars Dave Campbell says:

    Great video👍. I can fix just about anything on a car or truck. I’m just not much up on emission controls. I have an ‘04 Chevy 1500 and you have schooled me on checking and not guessing. I can’t afford a scan tool like you have but I have a BlueDriver, yeah I know not the same thing but I believe there’s a live data feature. Now with some better knowledge from your vids I have somewhat a better understanding of my EVAP system and what’s going on. Movin’ forward. Thanks man!

  45. Avataaar/Circle Created with python_avatars John Steczak says:

    Easy to follow and helpful

  46. Avataaar/Circle Created with python_avatars Don Braden says:

    I'm getting the same code on my 2012 silverado