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In this video I have a look at a 2005 Dodge Grand Caravan that cam e in with a code for a small and a large EVAP leak with codes P0455 and P0456. Now if you throw a smoke machine on this you will see there is no leaks. So why does the natural vacuum leak detection system think there is a leak? -Enjoy!
Go tell Mike B. @NGK that Eric O. sent ya! https://youtu.be/k4MJ8zy3r_M
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48 thoughts on “Chrysler vehicles: codes p0455 p0456 evap leaks?”
  1. Avataaar/Circle Created with python_avatars Richard Williams says:

    Love it

  2. Avataaar/Circle Created with python_avatars CAB- TO-GO says:

    WOW’ Thanks Buddy That Was The Simplest Explanation I’ve Ever Seen🤙

  3. Avataaar/Circle Created with python_avatars Justin Steele says:

    Thanks for putting this together…solved my issue on an '08 Caliber. Total cost: $11.00 from junkyard.

  4. Avataaar/Circle Created with python_avatars Harriet Sigmund says:

    Wow

  5. Avataaar/Circle Created with python_avatars youtubzer says:

    Hey just a quick question, I have a 2006 dodge caravan, it is displaying an P0404 (EGR) which was replaced. Would a vacuum issue trigger that code or would it show as 455 and 456? Thanks!

  6. Avataaar/Circle Created with python_avatars Vince DelPezzo says:

    Replaced my leaking purge with one from dodge … new one leaks…

  7. Avataaar/Circle Created with python_avatars Rich Jacobs says:

    You're a good teacher you make things simple so people can understand

  8. Avataaar/Circle Created with python_avatars lohengrinknight says:

    Hi, Eric. I don't know if you reply to viewers or not, but here I go. I have a turbo civic 2018 with 21k miles that sat for a year due to me being overseas. A week after I started driving it, I noticed both p0455 and p0456. I tested the purge solenoid in the engine bay, and that's fine. My next guess is the canister vent valve. The gas tank is capless, so i lubed it well in case the seal wasn't closing. Can you help me out?

  9. Avataaar/Circle Created with python_avatars Xombi Xombi says:

    Another class video, with footnotes if we need to go deeper. Thank you.

  10. Avataaar/Circle Created with python_avatars Boy Genius says:

    Lol @ "The money light is on" 😂😂😂 that's exactly what it is.

  11. Avataaar/Circle Created with python_avatars Mark smith says:

    Hey bud I have a 2013 Dodge Avenger with the 456 code bought a gas cap from the Dodge dealership & the engine light went off for about 3 days then it came back on then I bought evap leak tester that goes on the charcoal canister and the light went off again for a couple days and now it's back on there's no visible gas leaks or the smell of gas anywhere what could be the problem ?
    Thanks

  12. Avataaar/Circle Created with python_avatars ProductsOfMorticians says:

    Well, South Main, you failed to mention what you/you tell your customer to do after the new purge valve is installed. The customer may still see an engine light on or may be detected when going to get his inspection sticker (which failed because of the valve/0456 error). What's next to do? What do you tell your customer to do to be able to get the sticker??

  13. Avataaar/Circle Created with python_avatars Jeffery Eads says:

    Have a 2005 Chrysler Pacifica w/a gross leak throwing a Po 455 code. When inspecting, I found the fuel filler tube leak at tube and inlet tube to the gas tank. I have looked and looked for a video on how to replace the fuel filler tube on said vehicle and can not find one. Do you have a video on how it is removed or can you point me in the direction to get a video on how it is done? Thanks. Ps: Have learned a lot from your videos. Thanks again.

  14. Avataaar/Circle Created with python_avatars Purebred Racing says:

    Great explanation! Nicely done!

  15. Avataaar/Circle Created with python_avatars Saad Waheed says:

    you rock mr erick good video

  16. Avataaar/Circle Created with python_avatars You Fixed It says:

    So In this scenario under mode 6 test it would pass the engine running test but fail the key off test..am I correct In this thinking. Thank you for taking the time to explain knowing how exactly the system operates makes it so much easier to understand.

  17. Avataaar/Circle Created with python_avatars Nicolas Xu says:

    so what the fuck is wrong with the purge thing??????????? I don't understand what you talking aoubt!!!!!!!!!

  18. Avataaar/Circle Created with python_avatars Kevin L. says:

    Great video on the evap system. So the big question – what’s an estimated service to fix this cost? Thanks 🤔

  19. Avataaar/Circle Created with python_avatars Nick Romeo says:

    lol the money light is on

  20. Avataaar/Circle Created with python_avatars Robert Kohut says:

    Nice!! That sucks…. 🙂 (vacuum)

  21. Avataaar/Circle Created with python_avatars Rod Palm says:

    Yeah but what was actually broken?

  22. Avataaar/Circle Created with python_avatars michael galuszka says:

    Your video's are awesome and a great help for the backyard mechanic

  23. Avataaar/Circle Created with python_avatars michael galuszka says:

    Hello Eric, I've been plagued with this po456 for a while now on my 2006 chrysler T&C. Found a broken hose clamp on the charcoal canister. Light went out only to come back on months later .Smoked it and can't find nothing but when I fill this 2006 Chrysler T&C up I got gas leaking out the top of the gas tank sending unit . Could this be where the small evap leak is and if it is why don't I see any smoke coming from there? Hope you or anybody else answers.

  24. Avataaar/Circle Created with python_avatars Richard Cain says:

    I'm checking the ac for a friend, 2005 dodge grand caravan the ac clutch fuse keeps blowing

  25. Avataaar/Circle Created with python_avatars Big Dog50001 Automotive says:

    Excellent tip Eric!

  26. Avataaar/Circle Created with python_avatars danrandle 65 says:

    i actually found my evap leak by mistake (sometimes we get lucky). i pulled back a plastic loom thinking it was a mess of wireing and bang there it was. The big tube going to the canister had a hole rubbed in it from a body seam. Wasn't looking for it but found it anyway, lucky me🙌

  27. Avataaar/Circle Created with python_avatars Thanh-Danh Ho says:

    Keep the tips coming!

  28. Avataaar/Circle Created with python_avatars Vincent Medrano says:

    Quick question I’m getting a p0440 could you guide me in the right path I have a 2001 Pontiac sunfire 2.2

  29. Avataaar/Circle Created with python_avatars Zero Cool says:

    Bought a 98 GMC Sierra no key replaced with auto zone cylinder lock and key no start and the security light is on solid…need some help plz

  30. Avataaar/Circle Created with python_avatars ncrdisabled Submarine vet says:

    who was the hot lady?

  31. Avataaar/Circle Created with python_avatars Matthew Blair says:

    I'd love to see a video with an interview with Vinnie. Seems like he has some stories to tell.

  32. Avataaar/Circle Created with python_avatars Torquing with Larry says:

    Dodge caravan… money light on … no surprise hahahaha 🙂

  33. Avataaar/Circle Created with python_avatars Old Tree says:

    'O family produces some of the better videos on YouTube. Love "day in the shop". Thanks!

  34. Avataaar/Circle Created with python_avatars Hunter Sutherland says:

    Hey man got a quick question, can you do a video or at least tell me about which headgasket sealer liquid is the best nowadays. My ram 4.7 magnum is on its edge i live in SC and my coldstart has white misty smoke everymorning out of my tailpipe. Any suggestions?

  35. Avataaar/Circle Created with python_avatars Dunc Keroo says:

    He who can turn madness into a method should be well celebrated. Best of all is showing methods of trouble shooting; the starting points or what to tackle first and how to work one's way through the complex technology that has become the modern automobile. Great stuff.

  36. Avataaar/Circle Created with python_avatars bob parrell says:

    Did you hook  the vacuum guage to the tank port. Your hand was in the way.

  37. Avataaar/Circle Created with python_avatars bob parrell says:

    Thanks, I had ask for you to explain this lvld in an older video. Thx alot again

  38. Avataaar/Circle Created with python_avatars HyperXprojects says:

    Hi Eric, Did you get my letter about the brakes?

  39. Avataaar/Circle Created with python_avatars Ted Christman says:

    Clear, concise, well explained. Just WOW!

  40. Avataaar/Circle Created with python_avatars Smitty Smithsonite says:

    At least Chryslers fail predictably. 😁

    Great info, Eric. Thanks! 👍👍🍻

  41. Avataaar/Circle Created with python_avatars wyattoneable says:

    These are great. Your explanation was perfect. Oh yeah, Mike kicks butt over there.

  42. Avataaar/Circle Created with python_avatars mdcorman D says:

    here is an odd one….2009 honda odyssey. New battery…drained within hours of installing. Called me and I checked battery and it showed 20.34 volts.Asked how old battery was said bought it yesterday. Checked to see if he got voltage after jumping it. It showed no increase in voltage stayed at 12.47….Alternator needs replacing. Checked it too and it showed no increase when reved . Here is the funny part. Multimeter on battery and it showed battery at 12.47 charged…when he opened the door to get in the voltage went down to 10….by just opening the driver door. closed the door and battery charge started to go up.Parasitic sraw somehwhere and it is bad. so we have NEW BATTERY…bad ATERNATOR. Went to do a probe light on the engine compartment fuses and only 2 fuses (the grey ones showed faint power going to them with key on…all the other fuses didn't show any power with and without key on. Now I am a DYI guy and I told him its beyong my paygrade to determine what is causing the draw….Could be Anti theft or even a bad ECM…..I told him to find a guy he can trust that has a diagnotistic tool to tell you whats wrong ( AND THEY ARE FAR AND FEW around here…throw parts at it and hope for the best while draining your wallet) I amd stumped thinking ANTI THEFT but with no power going to the fuse bax except for 2 grey fuses and being weak I am thinking something else. Fuse Box bad? Alternator definitely…but draining battery when you open door and charge come up and stops at 10.47 to 11 max…there is a bad wire somewhere.

  43. Avataaar/Circle Created with python_avatars BigDaddy MRI says:

    You were the first channel I supported on the Patriots thing. Or Patreon thing. Anyway, love your videos. 👍👍 Best teacher ever!!

  44. Avataaar/Circle Created with python_avatars srigokul nath says:

    From where you get the wiring diagram and working diagram for any make and model while diagnosing is there any specific website or anything else let every body know through your comments sir kindly rply sir😊😊

  45. Avataaar/Circle Created with python_avatars Roadking 2003 says:

    I miss the old cars when you could fix it yourself

  46. Avataaar/Circle Created with python_avatars Doug Borrett says:

    I have an even better way of avoiding the problem, that is to avoid Chrysler products like the plague, 🙂

  47. Avataaar/Circle Created with python_avatars Jeffrey Murdock says:

    Another common problem on dodge/Chrysler Van's is a evap canister leak code. Those hoses going to the evap canister are held in place by plastic clamps that dry out and become brittle and in the end fail causing a small leak. Cant tell you how many of those I've fixed. I started carrying packs of clamps in assorted sizes just for that reason.

  48. Avataaar/Circle Created with python_avatars Choralone422 says:

    I have a 2005 Chevy Malibu that occasionally throws code P0445 when I start the car, but only if the gas tank is at 75%, 50% or 25% full. Could the root cause of that be the same as what is described in this video? The only potential fix I've had suggested to me is replacing a sensor that sits on top of the fuel tank which would require the tank to be removed to do so. It doesn't seem to affect anything at all so I've just been clearing that code when it pops up, which isn't too often.

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