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    Thread: Stubborn p0455 code

    1. #1
      What's wrong with my car?
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      Stubborn p0455 code

      I have a 2004 Chevy Aveo5 with 118k. The P0455 code cropped up a few weeks ago. Iíve replaced gas cap, purge valve and purge solenoid. Iím kind of at a loss as to whatís next.

      Is it possible that the tube is bad (from the canister to the solenoid up front)?

      If if anyone is had this issue, please advise.



    2. #2
      Almost time to do my timing belt
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      I resolved the same issue on my '05 by replacing the vent valve/solenoid with a boneyard part. They can also be tested before replacing.

    3. #3
      Should I keep it?
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      I've also had that same problem before. After replacing gas cap, purge valve, vent valve, the code came back. Only after I replaced the canister itself did the problem go away completely. Be warned, they can be expensive.

      Deano

    4. #4
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      Quote Originally Posted by Deano View Post
      I've also had that same problem before. After replacing gas cap, purge valve, vent valve, the code came back. Only after I replaced the canister itself did the problem go away completely. Be warned, they can be expensive.

      Deano
      yeah. I just took the wheel off for a quick look and everything seems to be kosher under there. Tube into vent valve from canister, tube out of canister to atmosphere.

      Guess I’ll clear the code for now and start looking for a new vapor canister as I’m told they go bad due to the (poor) location.
      Last edited by Philipjohn; 08-23-2019 at 09:42 PM.

    5. #5
      2004 1.6 Auto Rust Free
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      I chased my P0455 code for months....
      Mine finally was cured by replacing the fuel tank pressure sensor.

    6. #6
      What's wrong with my car?
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      Did yours make noticeable “knock” or “thump” from the tank area shortly after startup? Mine does that occasionally.

    7. #7
      2004 1.6 Auto Rust Free
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      Quote Originally Posted by Philipjohn View Post
      Did yours make noticeable “knock” or “thump” from the tank area shortly after startup? Mine does that occasionally.
      That’s most likely the canister valve doing what it’s supposed to do.

    8. #8
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      Cool. Was wondering as it doesn’t do it all the time, but occasionally does and I’ve never noticed it before. ��

    9. #9
      What's wrong with my car?
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      Quote Originally Posted by Eg.h2o View Post
      I chased my P0455 code for months....
      Mine finally was cured by replacing the fuel tank pressure sensor.
      Ah. Replaced the fuel tank pressure sensor.


      *ding ding ding!*

      So far, after 3 days of driving, thereís no popping/knocking noises from the hatch area and no check engine code light.

      Must say, it was the quickest fix Iíve done in it so far. Why canít they make EVERY fue tank this accessible? 😂





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