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.
Febi Bilstein engine solenoid valve for Audi vehicles
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.
The new 3.0L Duramax is scheduled to become available in the first half of the 2019 calendar year. Stay tuned to GM Authority for more GM LM2 engine news as well as ongoing GM news coverage.
Comments
I’m sorry sir, but that $1,200 charge for a failed engine mount is not covered by warranty.
… said the kind service writer to the guy with a 600 lb-ft tune on his LM2 with rolling coal ducts 😉
Since it’s a solenoid, it’s probably going to throw a check engine light when one goes bad…..
I bought a new 1979 Olds Cutlass diesel, that had the smaller 4.3 liter V8, basically the same as the larger 350 cube 5.7 liter V8 diesel offered in almost every large GM car. Even the Caddy offered it as an option. Anyway, my 4.3 rocked and rolled so much that the feet manager skipped out of his office, warmed up the car and parked it on the street so by the time i got to it, it was running a bit smoother. It rocked so much at idle, that my car invented front end tweeking. After they saw my car in my visits to Detroit, they hommies down there picked up on the newest version of rock and roll. It helped a bit after i broke in the engine at about 9,000 km, i switched to a 100 percent synthetic 10W40 engine oil. I put 135,000 km on it in three years, mostly highway driving. I got 32 MPG in Canadian gallons ( combined summer and winter ) which is 20 percent larger than a U.S. gallon. When i got the car in February of 1979, the cost of diesel fuel was 9 cents per liter. There are 3.7854 liters in a U.S. gallon. By November of 1979, the cheapest diesel fuel in Toronto had jumped to 17 cents per liter. I was not happy. But, two years later, we bought a second commercial vehicle that the owner had converted to run dual fuel propane with the gasoline system left in place. In 1981, propane here in Toronto was just 10 cents per liter. That’s why i have been a propane lover since that time. Propane engines idle so smooth, that you think the engine is not even running. And for high performance cars, propane has an octane rating of 105 R+M. Propane is about 62 cents a liter in Toronto today, while diesel is about $1.16 a liter and gasoline is about $1.11 per liter. No contest.
They should offer a bi-turbo version of this engine, that would be a beast !
just something more to go wrong 2 years down the road and at what price to replace them?