GM To Replace 3.0L Duramax Engines In Handful Of Silverado, Sierra, Yukon Models
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General Motors has issued a new Customer Satisfaction Program (CSP) for select units of the Chevy Silverado 1500, GMC Sierra 1500 and GMC Yukon equipped with the 3.0L Duramax turbodiesel engine.
According to The General, affected vehicles may have a condition where the overhead camshaft ladder assembly was incorrectly built, and subsequently installed into the Duramax turbodiesel engine. Dealers are to replace the entire engine assembly.
An important distinction to note that this is only a Customer Service Program, and hasn’t been labeled as a Service Bulletin or Recall.
Tagged with CSP number N232395830, this program only affects the 2023 model years of the aforementioned models. Notably, this means that both the 3.0L I6 LM2 (first-gen 3.0L Duramax) and 3.0L I6 LZ0 (second-gen 3.0L Duramax) are impacted, as the 2023 Yukon is equipped with the former, while the 2023 Silverado 1500 and 2023 Sierra 1500 feature the latter.
For further clarity, the LM2 was available for the 2019-2022 Chevy Silverado 1500 and GMC Sierra 1500, and was replaced by the LZ0 for the 2023 model year. Meanwhile, the Yukon has only been available with the LM2 thus far, but is expected to receive the LZ0 for the upcoming 2024 model year in conjunction with its mid-cycle refresh. Of course, the Chevy Tahoe, Chevy Suburban and Cadillac Escalade are also expected to feature the second-gen Duramax with the revision, but aren’t included in this CSP.
It’s worth noting that this CSP only affects 14 vehicles in total.
As a reminder, the 3.0L I6 LM2 turbodiesel Duramax was introduced for the 2019 model year of the Silverado 1500 and Sierra 1500, and develops 277 horsepower and 460 pound-feet of torque. Meanwhile, the 3.0L I6 LZ0 turbodiesel Duramax was released for the 2023 model year for GM’s full-size pickup trucks, and produces 305 horsepower and 495 pound-feet of torque.
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So GM will replace the diesel however won’t do anything for the trash 8 speed transmissions and lifter issues in their 6.2 V8s?
Doesn’t make sense.
It’s going to be more than 14 engines. Mine started struggling in less than 3k miles.
I just bought a 23 gmc evolution with duramax 3.0. I’ve got about 830 miles had it for 2 months is my truck under this category for the problem? The way they word $hit is ridiculous get to the point of the year vehicles that could have the problem can anyone give me some more information on this ? Thanks in advance! I got a better drive train warranty doubled from 3yr 36k to 7yr 70k just for drive train plus the 100k for the rest of it.