Missouri Vortec Oil Consumption Lawsuit Latest in a Series Against GM

Posted on
Tagged
#lawsuit #engine
Author
Scott McCracken
Source
carcomplaints.com
An isolated Vortec engine on a white background

Toss another lawsuit onto the ever-growing pile of GM Vortec oil consumption cases. The Missouri based class-action is the latest in a series of suits saying the 5.3L Vortec engine churns through oil because of defects in the low-tension piston rings. The problem is compounded by GM's questionably designed oil life monitoring system which doesn't warn owners when oil levels get dangerously low.

In fact the system doesn't monitor oil levels at all, just the quality of the oil itself. So while the engine may be dry and on the verge of collapse, rest assured that last quart of oil is still in tip-top shape. 👍🏼

About the Lawsuit

  • Will this be the case that finally forces GM to do something? The automaker has been fending off these sorts of suits since at least 2016.
  • This case is a little more focused than other. It specifically mentions the 4th generation Vortec 5300 L9 found in the 2010-2014 Avalanche, Silverado, Suburban and Tahoe.
  • The GMC equivalents of these Chevy vehicles, including the Sierra and Yukon, are mentioned as well.
  • The plaintiffs want something more than a "stop-gap" fix such as decarbonizing the combustion chambers. Is it useful? Absolutely. But it means nothing if the piston rings aren't actually redesigned and replaced.
More information on carcomplaints.com

Want to Learn More?

5.3L Vortec 5300 Engine Oil Consumption

From 2010-2014 GM's Vortec 5300 engine had multiple design flaws that led to an excessive oil consumption responsible for soiled spark plugs, bent pushrods, and timing chain wear to name a few. The problem was compounded by an inadequate oi

Oil being poured into an engine

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 Avalanche

    Years
    2007–2013
    Reliability
    56th of 80
    PainRank
    12.69
    Complaints
    373
    Continue Front 3/4 view of a Avalanche
  2. 2nd Generation Silverado 1500

    Years
    2012–2013
    Reliability
    62nd of 80
    PainRank
    18.65
    Complaints
    85
    Continue Front 3/4 view of a Silverado 1500
  3. 10th Generation Suburban

    Years
    2007–2014
    Reliability
    50th of 80
    PainRank
    10.7
    Complaints
    563
    Continue Front 3/4 view of a Suburban
  4. 3rd Generation Tahoe

    Years
    2007–2014
    Reliability
    45th of 80
    PainRank
    8.9
    Complaints
    443
    Continue Front 3/4 view of a Tahoe

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