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2021 5.3 L82 YK9 No AFM!!!

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Old Nov 11, 2023 | 2:53 AM
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Default 2021 5.3 L82 YK9 No AFM!!!
Does anyone know if the exhaust on the 2021 with no active fuel management has the flapper behind the muffler?
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Old Nov 12, 2023 | 10:01 AM
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2021 L82 uses Active Fuel Management . The L84 and L87 used Dynamic Fuel Management
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Old Nov 12, 2023 | 10:46 AM
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My 2021 Chevy Silverado 1500 work truck was made after March 2021 so it doesn't have AFM or DFM. I was just wondering if GM still put the flapper on the exhaust on the engines that don't have the active fuel management? I haven't got a chance to crawl under the truck yet and look because of my injury .
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Old Nov 12, 2023 | 11:01 AM
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Old Nov 12, 2023 | 11:06 AM
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Old Nov 12, 2023 | 5:24 PM
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that was due to the chip shortage, wasn't it
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Old Nov 13, 2023 | 3:24 AM
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Yes. I'm not sure if they resumed the AFM or not on this specific engine model
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