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post #1 of (permalink) Old 03-09-2017, 10:52 AM Thread Starter
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P0455 Code

Hello,
I have a 2013 Impala Flex fuel 3.6l. I recently had my check engine light come on with a P0496 code. I took it to a local mechanic, because my Chevrolet dealer took four hours just to do an oil change and I didn't feel like waiting on them to take forever just to make me pay them a lot of money. The mechanic told me to buy a new fuel cap and drive regularly for about a week to see if that fixed the issue. Well it didn't, so I took it back to him. He did a test on it and said it was my purge valve solenoid. I paid him $125 to fix that and the car did great for the next two weeks. When I tried remote starting the vehicle, it wouldn't start. I manually turned the vehicle on to find another code. I checked it with my OBD2 scanner and now it is showing a P0455. I am now lead to believe that it could be the canister solenoid. I was going to go about this by repairing it myself. However, the part is $70 and I don't want to replace it if I don't know that this will fix it. When I clear the code on my car (only done twice) it doesn't come back on until I try to remote start my vehicle. I'm not sure if anyone else has had this issue or not and if they have, I'd like to know how you went about fixing the issue.
-Thanks
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post #2 of (permalink) Old 03-09-2017, 12:43 PM
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Originally Posted by Huntjoshua View Post
Hello,
I have a 2013 Impala Flex fuel 3.6l. I recently had my check engine light come on with a P0496 code. I took it to a local mechanic, because my Chevrolet dealer took four hours just to do an oil change and I didn't feel like waiting on them to take forever just to make me pay them a lot of money. The mechanic told me to buy a new fuel cap and drive regularly for about a week to see if that fixed the issue. Well it didn't, so I took it back to him. He did a test on it and said it was my purge valve solenoid. I paid him $125 to fix that and the car did great for the next two weeks. When I tried remote starting the vehicle, it wouldn't start. I manually turned the vehicle on to find another code. I checked it with my OBD2 scanner and now it is showing a P0455. I am now lead to believe that it could be the canister solenoid. I was going to go about this by repairing it myself. However, the part is $70 and I don't want to replace it if I don't know that this will fix it. When I clear the code on my car (only done twice) it doesn't come back on until I try to remote start my vehicle. I'm not sure if anyone else has had this issue or not and if they have, I'd like to know how you went about fixing the issue.
-Thanks
Unfortunately, I don't think there is any way to be 100% sure if replacing the canister solenoid will fix it or not, but it sounds like you're on the right track. There are 2 different parts related to this system - and usually, it's a gamble as to which part it is. You've already had the other part replaced (the purge valve solenoid), so there is a pretty good chance that replacing the canister solenoid will fix the issue... I would do it. This seems to be quite a common issue on the 2012+ Impalas...

But, like I said, no guarantees...

Unless someone else has a better recommendation (I'm NOT a mechanic)!

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post #3 of (permalink) Old 03-09-2017, 02:06 PM Thread Starter
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Okay, I may try doing that. Thank you for your reply.
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post #4 of (permalink) Old 03-11-2017, 07:32 AM
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jt gave you the best recommendaton I believe. P0455 is difficult to handle without a scan tool. Without it, you will have to replace a part at a time. You already replaced gas tank cap, fuel vapor purge valve, and are going to replace canister vent valve. If this doesn't work, then you will have to examine fuel vapor line and the filler hose/tube for a hole.

An alternate path is to pay your mechanic to attach a scan tool to OBD port and activate purge valve/canister vent valve, and go from there.

Last edited by paker; 03-11-2017 at 08:00 AM.
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post #5 of (permalink) Old 03-12-2017, 06:19 AM
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Might have a look at what scannerdanner did to chase this down. Seems to be a common GM problem.
This may help
It may not


Some things are better left unsaid, which I generally realize right after I have said them.
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post #6 of (permalink) Old 03-20-2017, 01:51 PM Thread Starter
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UPDATE-
I replaced the canister valve solenoid and it seems to have fixed my issue with the vehicle. Thank you to everyone who tried to help me out!
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post #7 of (permalink) Old 03-20-2017, 02:51 PM
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Thank you for sharing your repair experience.
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post #8 of (permalink) Old 03-21-2017, 01:03 AM
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You screwed yourself by cheaping out and not going to the dealer!
Now its gonna cost you !!!!!!!!!!!!!!!!!

Those parts are covered by/under the FEDERAL emission warranty!
No matter what the mileage and up to 8 years IIRC.

They replaced those gadgets in my 2013 Impala
and my 2007 Chevy truck at NO CHARGE!
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post #9 of (permalink) Old 03-21-2017, 03:20 AM
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Honestly, when mine fail, I'll probably just replace them myself as well. They are inexpensive and easy to replace. I'd rather avoid going to a dealer (the whole scheduling thing, missing work, etc). Not to mention this way, I have control over exactly what is done to my car. I've had dealerships screw up just as much stuff as they've fixed (while fixing things). :-)

I avoid dealerships at all costs...

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