Those familiar with previous failures of the 650-horsepower 6.2L V8 LT4 engine in the C7 Corvette Z06 can add one more to the list.
This time, the failure took place on a track at the hands of Fox News reporter Gary Gastelu. According to the review, the Vette “unceremoniously called it quits” after a few laps. As with every other Corvette Z06 engine failure thus far, the root cause remains unknown.
“There was oil, some bits and pieces, unpleasant noises. It was not pretty.” That’s the most detail about the failure itself from the review, and Gastelu also points out that the failure of this particular engine may simply be the result of abuse from fellow journalists who undoubtedly gave the Corvette some “quality testing”. He also raises the point that “sports cars break, and it ain’t cheap to fix them when they do.” While this is true, we also have no doubt that the brilliant minds at GM are certainly capable of building a vehicle that is both powerful and reliable, and that the particular Z06 in question is covered under GM’s 5-year/100,000-mile powertrain warranty, and 3-year/36,000-mile bumper-to-bumper warranty.
Even so, these failures should not be happening in the first place — at least not to this magnitude — as they are a major contributor to customer dissatisfaction, and we can’t help but think that they are all the result of the same underlying issue, one that GM/Chevrolet have yet to address on a public basis. This isn’t to say that there is a major mechanical flaw, or that every Z06 is defective. To the contrary, it could be as simple as advising drivers to extend the break-in period for these high-powered LT4 motors. But we’ll spare you the speculation and ask what you think in the comments below.