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- Chevy and GMC Duramax Diesel Forum
A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more!
- 2025 Issues - Chevy and GMC Duramax Diesel Forum
I bought a 2025 GMC Sierra 1500 Denali Ultimate Duramax and overall, I love the truck It's an absolute joy to drive, and the engine is fantastic Unfortunately, with barely 3k miles on the truck, I've had significant two issues that have required return trips to the dealer Issue 1 - The DEF supply line was not properly secured to the DEF
- Duramax 3. 0 Should I buy? - Chevy and GMC Duramax Diesel Forum
Hello, new to this forum Thinking about purchasing a 23 or 24 GMC Sierra with the 3 0 Duramax I drive about 10 miles each way to work, mixed freeway and city Reading about several issues with this motor, oil leaks, long starts no starts, DEF issues, etc I really like this motor and
- What, if any are the pros of a 2025 3500 Duramax vs a 2022?
I have a 2022 3500 dually Duramax now and haven't had any problems so far and was wondering if there is any advantage to buying a new truck? Thanks in advance for any pointers! Roy
- N242454440 recall for 10-speed transmissions - Chevy and GMC Duramax . . .
Notably, all affected units covered by GM Safety Recall number N242454440 are equipped with Duramax diesel engines Vehicles from the same nameplates and model years that are equipped with gasoline engines use a different transmission and are not affected
- Oil recommendations | Chevy and GMC Duramax Diesel Forum
The Duramax engine is fairly easy on oil and with regular oil changes your chances of an oil-related failure is very low If you want to monitor your oil you can send a sample off to Blackstone labs and they'll test it and send you the results
- 2017 L5P P0191 - Chevy and GMC Duramax Diesel Forum
Having some issues with my 2017 l5p Have been getting the p0191 code for the last year and a half Very intermittent sometimes it’ll go into engine reduced power 5 times in a 20 minute drive and other times it won’t at all Have changed the fuel pressure sensor and pigtail Which did fix it for
- Cylinder Numbering | Chevy and GMC Duramax Diesel Forum
How are the LB7 cylinders numbered, 1234 drivers side, or alternating like a gas small block?
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