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.
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.