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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
2025, 3500 6. 6 Duramax - Chevy and GMC Duramax Diesel Forum 2025 3500, Duramax 6 6 After stopping to refuel the check engine light came on again, took the truck to the dealership, where they updated the software and the light is off, hopefully it is good The tech said it was a recall
3. 0 Duramax | Chevy and GMC Duramax Diesel Forum I’ve been looking to get a new truck and was looking at the GMC AT4 1500 with the 3 0 Duramax and was wondering if there are any problems with this motor and what else would I need to know before buying this truck, fuel economy, reliability, etc Sent from my iPhone using Tapatalk
Did GM discontinue the 3. 0 Duramax? Just read this article, and it sounds like 2025 will be the last year for the 3 0 Duramax I hope it’s not true I only have 17k on my 23 and was hoping to trade it in for another in a few years can anyone confirm this? Here is the article: The Beloved Duramax Engine Has Just Gotten Killed
What is the Best Duramax OBD2 Scanner? 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! Full Forum Listing Explore Our Forums General Discussions 01-04 5 LB7 Duramax Powertrain New Member Introductions Build Threads Exterior Home Forums
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
Newer GM diesels get a DEF sensor fix! - Chevy and GMC Duramax Diesel Forum This applies to ALL 3 0 duramax's and newer 6 6 duramax's too NO It does apply to all LM2's It does not apply to LZO's Full size SUV's are still using the LM2 2023 and 2024 1500 pickups have switched to LZO GMAuthority is a journalist website that implies they speak for GM -- but they are independant
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