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Emmisions alarm '21 TB?

NorHawk

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So I get a check engine alarm. Ends up being some Filter and Canister for Emmisions that's plugged and they have to replace both the filter and canister. It's under the truck somewhere by the gas tank. They then proceed to tell me I need to clean this thing probably once a week. WTF is this all about? I live on gravel, run down mud roads on occasion, drive through bean and corn fields, etc. Because, you know, it's a god dam truck. What kind of bullshit design is this? It's covered by warranty this time, but I'm about a minute from trading this thing off unless there's some way around it. Anyone else had to deal with this as I'm not wallering around on the ground weekly to clean this POS?
 
Sounds like the evaporative canister. Never heard of one getting plugged by dust or dirty air? It traps gas fumes from escaping to the air. Sometimes they can get damaged by overfilling the tank and the fuel spills into the charcoal canister.
 
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Sounds like the evaporative canister. Never heard of one getting plugged by dust or dirty air? It traps gas fumes from escaping to the air. Sometimes they can get damaged by overfilling the tank and the fuel spills into the charcoal canister.
Yeah, that's probably it. There's a filter that they replaced and that didn't clear the check engine light. They are now replacing the canister too because they think it's to full of dirt and the like. Not sure why they can't just clean it out and call it a day? Kinda strange. I'm going to take a look when I can to see if I can figure out a way to prevent it in the future. I guess they've been seeing more and more of this around here. Said the Colorados have the same issue
 
I have the same issue, I was just gonna replace the part, it’s located right under driver side. Does anyone know what happens if not replaced for a while? Does it damage the engine or something else?
 

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Been “fixed” for a couple weeks now, anddddd, I have an emissions alarm again. Annoying now
 
Wonder if it’s something to do with my fuel fill. Every time I get gas lately, the pump constantly kicks off. It never did that until recently. I’ll run it past the service center
 
I replaced mine just to see if the dealer was pulling a fast one on a wiring issue and it didn't fix the problem. I wish I knew what fuse controlled this and I'd replace that too. My electrical guy says it's a last resort to start digging into the wire harness. Unfortunately it's not covered under powertrain warranty and I'm past my 36k miles.

My uncle has a 2020 GMC Sierra and just got a letter from GM saying there is a known issue with the EVAP system but not to take his truck in unless the check engine light comes on. It increased the coverage on that part to 10 years and 150k miles. I don't know what engine he has or if it even matters.
 
My check engine light is back on now, just two weeks after they replaced what I described above. Haven’t had time to take it in yet to now check this and my gas fill issue. Not liking what’s happening at the moment. Update when I get it in.
 

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