Are There Duramax Diesel Defeat Devices?

Posted on
Tagged
#exhaust-system #lawsuit
Author
Scott McCracken
Source
carcomplaints.com
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A consolidated class-action lawsuit is accusing GM of equipping its Duramax diesel engines with defeat devices. The plaintiffs claim emissions tests show the Silverado and Sierra 2500 and 3500 trucks emit levels of nitrogen oxides higher than GM advertised. The emissions are also allegedly higher than government standards.

The lawsuit says the engines are equipped with multiple devices to control emissions in specific situations, but that the engines generally produce 2.1 to 2.4x the legal limit.

That’s amateur hour next to VW’s diesel defeat devices that spewed 40x the legal limit of NOx.

More information on carcomplaints.com

Related Chevrolet Generations

At least one model year in these 4 generations have a relationship to this story.

We track this because a generation is just a group of model years where very little changes from year-to-year. Chances are owners throughout these generation will want to know about this news. Click on a generation for more information.

  1. 2nd Generation Silverado 2500

    Years
    2007–2013
    Reliability
    27th of 80
    PainRank
    3.08
    Complaints
    47
    Continue
  2. 3rd Generation Silverado 2500

    Years
    2014–2019
    Reliability
    30th of 80
    PainRank
    3.59
    Complaints
    34
    Continue
  3. 2nd Generation Silverado 3500

    Years
    2007–2013
    Reliability
    24th of 80
    PainRank
    2.54
    Complaints
    23
    Continue
  4. 3rd Generation Silverado 3500

    Years
    2014–2019
    Reliability
    9th of 80
    PainRank
    1.02
    Complaints
    9
    Continue

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