P0455 EVAC code and is there a diagram somewhere?



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Thread: P0455 EVAC code and is there a diagram somewhere?

  1. #1
    Join Date
    May 2017
    Location
    Kansas
    Posts
    6


    P0455 EVAC code and is there a diagram somewhere?

    Hey guys. The wife has a 03 T&C 3.3l (LX) that has a check engine light that keeps coming on. It's new to us so we pulled the code and since we ere at the auto parts store, just bought a new gas cap, cleared the code, and got on with our day (This has happened to us on no less than 4 different vehicles and has worked 3 of those times). Well, after 2 days the light came back on, same code. I've been reading a lot in these forums and I suspect everything I need to know is in here, but it's scattered a bit. I was wondering if anyone had, or knew where I could find, a diagram of the EVAC system in the van so I could go about systematic testing rather than randomly removing and poking things to see if they yelp . I have used these kinds of diagrams to chase down vacuum leaks before, just couldn't find one for the EVAC system on this model. I found this one via google search, but I'm not totally confident in it.2013-06-05_224519_evaporative.jpg
    Is this a good one, or does anyone have one better?

    Thanks in advance for ya'lls help
    Sybil ~2003 Town and Country LX 3.3L with 260,000 miles
    Yoda ~1997 Saturn SL2 with 267,000 miles
    "When 250,000 miles you reach, look as good you will not"

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  3. #2
    Join Date
    Dec 2015
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    You can check this video. It can help you pin down what may be causing the leak. I had some of the evap codes come up and for me it was broken plastic clamps on the canister just below the drivers seat area


    https://m.youtube.com/watch?v=CSn0ljUS6kI

  4. #3
    Join Date
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    First, this is not a big issue, as your van should be running fine.

    As above, mine was a split in the large hose on the same cannister.

    Remember, no worries, be happy!

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  6. #4
    Join Date
    Jan 2016
    Posts
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    My sons van it was the NVLD valve, located by the charcoal canister, top was popped up, there are numerous possibility's if that's the slow leak evap code, hose under air filter, purge valve, filler pipe to gas tank, I made a smoke supply out of a harbor freight paint sprayer to find the leaks

  7. #5
    Join Date
    May 2017
    Location
    Kansas
    Posts
    6


    Quote Originally Posted by marvinstockman View Post
    First, this is not a big issue, as your van should be running fine.
    It is, but it's the Wife's van, so she's worried about it, therefore I have to be ;-)

    so the Evap Canister area is a good place to start?

    Thanks
    Sybil ~2003 Town and Country LX 3.3L with 260,000 miles
    Yoda ~1997 Saturn SL2 with 267,000 miles
    "When 250,000 miles you reach, look as good you will not"

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