May 6, 2024 · While driving to work tonight I got a P-0621 code Generator L-Terminal Circuit. Truck went into Limp Mode and wouldn't shift out of first gear. Truck is now dead and won't …

Nov 11, 2020 · Hello all, I saw on the Chevy.com website that the new Allison 10 speeds have a PTO access panel built into them. has anyone added a PTO yet? Specifically I'm looking to …

Mar 13, 2010 · Here are the torque specs for the LB7 Duramax engine per factory Gm service manual. Some of the specs are not included, but these are ones I feel unnecessary to post …

Nov 27, 2021 · Hey everyone. I'm new to the diesel world. I own a 2021 GMC SIERRA 3500 SLT. I want to start changing my own oil. Should I use conventional or synthetic? What is the best …

Feb 12, 2020 · Anybody ever use the pto ports on the allison 5 speed? Where can I find information on where to purchase and everything to install? I thinking a generator would be …

Jul 17, 2014 · My belt has been destroyed and the diagram is also gone. Anyone have a diagram for an 05 LLY with 105 alternator? Thanks

Sep 28, 2017 · Looking through the build sheet on the truck and states that it had dual alternator. Don't want to sound stupid but what does it gain me and what is it used for or could be used for.

Jan 25, 2025 · Does anybody know in the L5P (2024) whether when you charge the easy to access auxiliary battery the starter battery also charges, or does that need to be separately …

Jan 25, 2021 · Found & Fixed The "Valve'Problem on 3.0 Liter Diesel .Its not the Valve or Harness

Sep 3, 2016 · I bought my 2015 2500 silverado duramax this spring. I will be storing the truck for the majority of the winter. On my previous non-diesel truck I would put a batter tender on the …