General Motors is prepared to duke it out over a class action lawsuit. The lawsuit claims the automaker used three “defeat devices” to allow Chevrolet Silverado and GMC Sierra pickups equipped with the Duramax diesel engine to pollute two to five times the legal limit.
GM released an official statement over the allegations. It simply reads:
“These claims are baseless and we will vigorously defend ourselves. The Duramax Diesel Chevrolet Silverado and GMC Sierra comply with all U.S. EPA and CARB emissions regulations.”
The lawsuit covers the 2011-2016 model years of Silverado and Sierra pickup trucks totaling 705,000 vehicles. Multiple law firms filed the lawsuit, chiefly among them is Hagens Berman Sobol Shapiro. The firm notably helped owners and dealerships reach multi-billion settlements over Volkswagen’s over-polluting cars.
Auxiliary emission control devices are legal under federal law, though their presence must be disclosed to federal agencies and their purpose fully explained. It’s this caveat that has led the United States Department of Justice to serve Fiat-Chrysler Automobiles with a lawsuit; FCA has been unable to properly explain the presence of eight auxiliary emission control devices.
GM has bet big on diesel vehicles as of recent. The 2017 Chevrolet Cruze diesel is the first of many oil-burners slated. The 2018 Chevrolet Equinox and 2018 GMC Terrain are on deck for the same diesel engine as well. In the meantime, GM has invested into a new generation of diesel engines for Cadillac.
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“In the meantime, GM has invested into a new generation of diesel engines for Cadillac.” But no others diesel engines for Chevrolet and Buick, only the 1.6 diesel!!!
OK here, some acual facts , its the LML 2011-2016 variant of the duramax, oh by the way the engine has been
comletely reworked for 2017 and beyond, its cleaner and makes much more power and torque over the
previous generation versions .
the lawsuit is a crock, the LML engne has the SCR Urea system and the special nox catalyst, the standard
oxidation cat and the DPF filter, what cheating , the lawsuit says GM engineers puts the SCR system and its
special nox cat behind the oxidation 3 way cat and the dpf filter , excuse me, they’re shysters not deisel
engine specialists .
the suit is a crock, has the automotive press investigation these alleged plaintiffs and even if they bought the
according to them excessicely polluting vehicles as new vehicles or as second hand vehicles ,
were talking 705K vehicles , these trucks typically are used hard and by that, accumulate lots of miles annually
what do we actually know . Nothing . No facts except a specious claim .
Every diesel today virtually has the
scr and its special nox cat , dpf filter and the standard oxidation cat or cats usually like all catalytic converters are today close coupled to the engines exhuast manifold or manifolds .
Every engine is different, I live in a farm area , John deere tractors are prominent here and JD’s diesel emission system typically has lower DEF (diesel exhuast fluid) consumption vs say Case/IH engines , but everybody
is in compliance .
Start learning the facts , OK , the matter of VW, the VW 2.0L TDI engines did not use a SCR system , they used
another type of nox reduction device called a nox trap, its a trap, it rapped the nox , when the trap was full
fuel was injection and the nox rapidly burned off at very high temperature but it did not use a SCR system.