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I think they revised the 2021 model. Hopefully you're good. 👍

What year is it? 2020?

Another 2020 3.0 Duramax teardown. Timing chain strectched and slipped off the gear.

Thank you sir...

Let us know if they work please.

311075940274179060 This one too.

298586565251440931 This code might work. Got it from a search.

Search the interweb for Rockauto.com coupon codes. Several show up.

I agree BigR.

https://www.caranddriver.com/news/a69253786/gm-allison-transmission-partnership-ending/

Who are your friends on the forum? What are you running for a tuner?

I did not get the single battery. I figured I'd go back and get them when the new batch came in so I'd get them from the same lot.

Well. I changed out the new alternator and new serpentine belt. It charges now. I went to buy new batteries, and they only had 1 in stock. WTF. So hopefully next week all should be good. 👍 Very odd, my fluke initially gave me only 13v last week when I started having the issue. Judt before...

GM trucks with Regulated Voltage Control (RVC) alternator systems include models from 2007 onwards, particularly the half-ton trucks and heavy-duty models like the Silverado and Sierra. This system is designed to optimize battery life and improve fuel economy by managing the charging voltage.

TY. I never knew what it was called.

OK. Thank you. Guy was telling me there are 2 charging curcuits. A low speed and a high speed circuit. They charge at different voltage rates. I will give a better look-see today.

I was having issues with batteries being dead. I fully charged both batteries and truck was fine. After running the truck, then letting it sit overnight, no start the next morning. I fully charged batteries again and got truck fired up. I put volt meter on battery and got 13 volts. Lat time I...

Maybe try a junkyard?

Check Kryptonite.

Welcome! Why would you want to convert a diesel truck to electric?