Over the past few weeks, GM Authority has exclusively brought you the very first images of the upcoming GM 3.0L Duramax LM2 turbo-diesel engine for the 2019 Silverado 1500 and 2019 Sierra 1500. We also told you that the new diesel mill will use an advanced cooling system and that, despite rumors to the contrary, it is on track to launch in the first half of 2019. Today, we have more new information on the forthcoming motor related to how it will be mounted.
According to insiders familiar with the matter, the Silverado and Sierra light duty trucks will use an engine mount solenoid valve system to cradle the new 3.0L Duramax. The variable viscosity technology is essentially an adaptive shock absorber that actively controls engine vibration, reducing a significant amount of vibration from the engine and contributing to lower NVH levels.
Various German and Japanese luxury automakers have been using advanced solenoid valves for mounting engines for the exact purpose of reducing vibration and harshness levels. The practice originally started out with diesel engines in Europe. For its part, GM currently uses engine mount solenoids for its all-new, turbo-charged 2.7L L3B gasoline motor in the 2019 Silverado and Sierra.
Besides pre-announcing the 3.0L Duramax when unveiling the 2019 Silverado and Sierra light duty trucks at the end of 2018/beginning of 2019, GM has remained very tight-lipped about the diesel engine. Leaks from late last year have pegged the engine as making 282 horsepower and 450 pound-feet of torque in the 2019 Silverado 1500 and 2019 Sierra 1500. Today’s information about the motor’s advanced mounting system gives us a bit more intel that we did not have before.