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My 1500 LM2 Duramax makes a lot of clicking and whirring under the hood after shut down. I don’t think there’s a problem. I’m sure it’s part of a normal sequence. But what is it exactly… does anyone know? Thanks.
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according to the manual it is closing and opening dampers and turning things off. Mine does the same thing and the manual does mention this.
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I will admit I haven’t read the manual cover to cover. Just a few areas where I had questions. I’ll have to look closer. Hoping it talks about specifics. But, it is just an owner’s manual. Thanks.
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