EVAP Error Code
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, EVAP Error Code in Cadillac Escalade Forums; My EVAP code is continuing to come on, the first two times it happened, I replaced the Vent Valve and ...
  1. #1
    djais1801's Avatar
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    EVAP Error Code

    My EVAP code is continuing to come on, the first two times it happened, I replaced the Vent Valve and updated bracket. It was good for about 2 months, and now it is coming on again. We reset the light 2x and on the 3rd time, we blew out all the lines to make sure no dirt/dust was in the lines. I don't live in a dusty area, and don't offroad. Is there possibly a control module for the EVAP that could be faulty? My truck is an 03 EXT with 105k.

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    the cadillac man's Avatar
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    Re: EVAP Error Code

    if you can get the code and post it i might be able to help.

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    Re: EVAP Error Code

    Sorry...it's the same one that keeps coming up P0446

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    Re: EVAP Error Code

    http://www.obd-codes.com/p0446 here you go read this and see if it helps.

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    Re: EVAP Error Code

    thank you Cadillac Man...I will give this to my mechanic.

  7. #6
    ohsixext is offline Cadillac Owners Member
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    Re: EVAP Error Code

    How do you find out the code? My check engine/service engine light came on, but when i brought the truck in for an out of province inspection and the light was on then, the mechanic said it was evap but he reset it because It was running fine and I didnt want to deal with it. 3 weeks later, it came on again.

  8. #7
    ohsixext is offline Cadillac Owners Member
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    Re: EVAP Error Code

    How do I reset it? Would it work if I disconnected the battery?

  9. #8
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    Re: EVAP Error Code

    you can go to auto zone and have them connect a obi-2 reader and use it to clear the codes but i do suggest you fix the issue before you clear the codes or it will be back.

  10. #9
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    Re: EVAP Error Code

    and fyi there is no way to clear the codes by disconnecting the battery now i know i have tried i have a maf code that pops up ever so often i guess the sensor needs to be replaced.

  11. #10
    ohsixext is offline Cadillac Owners Member
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    Re: EVAP Error Code

    the downfalls of canada no autozonene or kensun.com shipping. I have the day off tommorow im sure I will find a parts store around here that can help me out.

  12. #11
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    Re: EVAP Error Code

    good luck in finding a parts place i hope you figure out the true source of the problem.

  13. #12
    ohsixext is offline Cadillac Owners Member
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    Re: EVAP Error Code

    I got the light cleared. The code that came up was the vent valve solenoid. With the power of this forum I swear I knew more about it then he did. He said its a 50 dollar part and he could did it and a full diagnostic for 1 hour of shop time. So it would cost me 127 plus tax.. Hopefully with this forum I can do it myself. I have seen pics of the part, but where is the vent valve solenoid?

  14. #13
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    Re: EVAP Error Code

    before you throw any money in this i do suggest you check the evap hoses to make sure that none are cracked or damaged if you find none then you can worry about the vent valve solenoid which i will look into on it's location if i can find it man i do miss the good old day when cars didn't have everything tied into a computer.

  15. #14
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    Re: EVAP Error Code

    look on my previous thread about this it talks about the location of the solenoid...I had to order a new bracket with the vent valve solenoid. The valve was $50 and the bracket was like $150...and guess what...it came back on about 3 mos later...but good luck

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