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GM Full-Size SUVs With Duramax Diesel 3.0L LM2 Engine Back In Production

Production of the 3.0L I6 LM2 turbodiesel Duramax engine for GM full-size SUVs has resumed, GM Authority can confirm.

General Motors temporarily halted production of the 3.0L I6 LM2 turbodiesel Duramax engine due to a supplier issue back in August. GM Authority then reported that production of the engine was expected to resume until the new year, however we’ve now learned that production of the engine has returned sooner than expected, with the stoppage only lasting for a total of two weeks.

Production of the 3.0L I6 LM2 turbodiesel Duramax engine takes place at the GM Flint Engine Plant in Flint, Michigan. The engine is offered as an optional powertrain in the Chevy Tahoe, Chevy Suburban, GMC Yukon, and Cadillac Escalade, as well as the automaker’s light duty full-size pickup trucks, the Chevy Silverado 1500 and GMC Sierra 1500.

Output of the LM2 is rated at 277 horsepower at 3,750 rpm and 460 pound-feet of torque at 1,500 rpm. For the 2022 model year, the LM2 is mated to GM’s 10-speed automatic transmission in all vehicles that it is offered in.

GM’s full-size SUVs are produced at the automaker’s Arlington Assembly plant in Texas. The plant ramped up its production output this month as GM’s semiconductor chip supply improved, with the automaker implementing weekend overtime at the facility to help keep up with demand for its hugely profitable SUVs.

3.0L LM2 Duramax diesel engine

While production woes with the 3.0L I6 LM2 Duramax engine were not tied to the chip shortage, the full-size truck and SUV models the engine is offered in have been affected by the chip supply situation. GM spokesman David Barnas said that while the automaker’s access to chips has improved in recent months, the situation remains dynamic.

“Although the situation remains complex and very fluid, we remain confident in our team’s ability to minimize the impact of the semiconductor shortages that have been impacting the industry,” Barnas said.

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Sam loves to write and has a passion for auto racing, karting and performance driving of all types.

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Comments

  1. That’s really good news to hear. Glad to see the 3.0 Liter Diesel back in production for the SUVs.

    Reply
  2. Ironic that the cover photo for this piece shows the SUV model that the 3.0 Duramax is NOT available in.

    Reply
  3. It would be really nice if GM would sell a crate motor version of the 3.0 for older trucks. Preferably without the pollution controls for pre 2004 aplications.

    Reply
  4. Sweet👍

    Reply
  5. GM announced end of year 3.0 diesel stop delay, now revised to a two week halt window,.. Good News. Lots of heated phone calls and stinging emails by the General to the vendor who was flubbing the dubby.

    Great to see resumption. Diesel much better engine than a gasser. Safer, better performer, more efficient and much longer lasting.

    Cummins diesels brought back Dodge, now RAM trucks, back from the dead to now be a leading player.

    Go GM. Duramax with Allison is a big winner like Cummins X15 with an Eaton Roadranger is a big winner with Class 8 on highway trucks.

    Reply
  6. Love my GMC Yukon XL with the baby Duramax. Almost 30 mpg cruising at 70 mph. Towing my 6500 lb camper is a breeze.

    Reply
  7. Did they fix the no start issue ?

    Reply
  8. Does anyone knows how this Diesel engine performs trawling a RV trailer?

    Reply

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