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re: 2021 Silverado 2500hd Duramax problem

Posted on 6/17/21 at 10:41 am to
Posted by TheDrunkenTigah
Baton Rouge
Member since Aug 2011
17377 posts
Posted on 6/17/21 at 10:41 am to
Got nothing on the transmission but how did you like the 6.6 gas?
Posted by BorrisMart
La
Member since Jul 2020
8845 posts
Posted on 6/17/21 at 12:54 pm to
quote:

Got nothing on the transmission but how did you like the 6.6 gas?


Sorry to hear about the truck, surely the dealer can figure out what's wrong with it or remedy it. Interested on this as well. I was just pondering last night what makes a person choose gas over diesel in a truck that size, performance?
Posted by YawBaw7
Your Mom's house
Member since Jan 2017
414 posts
Posted on 6/17/21 at 9:05 pm to
Thanks y’all. Update: they downloaded the data from the test run showed the transmission shifting down hard. Sent it directly to GM to analyze.

GM is saying that it’s a external control module on the outside of the transmission. They are sending the new part.

I think I’m fricked as far as taking delivery of the vehicle since I signed paperwork 3 weeks ago. But I told salesman I need a free extended warranty.
I’ll update if they give it to me.
Pretty disappointed so far
Posted by YawBaw7
Your Mom's house
Member since Jan 2017
414 posts
Posted on 6/17/21 at 9:12 pm to
As for my 2020 6.6 gas. It was an excellent truck.
Got the custom which is just a work truck with better wheels basically.
Was the first person to buy one at the dealership in July 2019. So I had it for almost 2 years and 23k miles.

No issues, but 2 years isn’t really long enough to know enough about the longevity.

Avg 12-13 mpg mixed city/highway
Would get 15 mpg on interstate doing 75

Sticker price was 48k
I bought it for 46k with rebates
And I sold it back to dealer for 51k
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