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Owners of 427, Z06 Corvettes Take GM To Court Over Engine Problems

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On: Mon, Oct 19, 2015 at 1:45PM | By: Carl Malek


Owners of 427, Z06 Corvettes Take GM To Court Over Engine Problems

General Motors has been navigating through some rough seas lately with the ignition switch recall as well as several other recent recalls. Now, a new legal challenge has appeared with owners of 427 and Z06 Corvettes from the C6 era suing the company over engine failures and the company's handling of the problem.

The lawsuit centers around the 7.0-liter LS7 V8 which saw duty in the forementioned models from 2006-2014. According to the owners, the engines are susceptible to valve-guide degradation that eventually destroys the engine from the inside out. Attorneys representing the group of owners have filed several claims ranging from fraud and negligence to possible violations of the RICO Act, according to statements in a report from Law360.com which was spotted by the folks over at TTAC (The Truth About Cars.com).

The 19 owners involved in the lawsuit accuse GM of initially investigating the claims of valve-guide degradation via a simple "wiggle test", but then not officially solving the issue nor promising a long-term fix to the problem. The timeline of events takes an interesting twist when a Chevy customer service representative made a statement in 2012 on Corvette Forum.com stating that the problem affects only a "small number" of Z06s from the 2008-2011 model years. The same representative elaborated further claiming, "Through the inspection of returned heads, it was determined that a machining error in the valve guide had occurred at our head supplier. The quality issue has been contained as of Feb 2011 with a 100% inspection of all the heads." The post also acknowledged that the problem would eventually result in a terminal engine diagnosis, but the rep claimed that drivers should be hearing unusual valve train noises before it advanced into the more serious stages.

This explanation does have some plausibility since errors can occur on the factory floor, especially with automated machinery. However, these errors are usually promptly addressed and remedied by trained personnel that periodically inspect the machinery. The comments themselves were published back when the oldest vehicles involved in this latest string of problems were covered under GM's five-year warranty. It is currently unknown if the company has launched an extensive extended warranty program to fix vehicles that are more than five years old or for vehicles that have surpassed 100,000 miles. GM, for its part, has not publicly commented on whether it has launched such a campaign, but stay tuned for more information on this situation as it becomes available.




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