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First 2015 Chevy Corvette Z06 engine blows up at just 891 miles

You've waited and watched and waited some more for the arrival of your 650-horsepower, $78,000 Chevrolet Corvette Z06. Finally, that joyous day arrives and you eagerly, but gingerly, begin to break-in the 6.2-liter supercharged V8 monster under your hood. Then 900-odd miles after delivery, your excitement grinds, quite literally, to a halt. That's what the owner of one 2015 Z06 claimed happened to him when a simple break-in drive resulted in a lunched engine. The owner, known as Lawdogg149 on Corvette Forum, says he was out breaking-in his car ahead of a January track event when it happened. "While making a pull from 35 miles per hour, I accelerated and shifted short of redline, and boom - the car began knocking. I pulled over and popped the hood. I could hear a loud knock coming from the No. 6 cylinder area along with a serious, grinding, metal-on-metal sound coming from the supercharger area," Lawdogg wrote. A subsequent trip to the dealer confirmed his concerns, with the service facility telling Lawdogg that the No. 6 valvetrain had failed. The dealer couldn't research the issue further, though, as General Motors requested the engine be returned for a more thorough evaluation. The good news for the Z06's unlucky owner, at least, is that GM will be covering the engine replacement under warranty, an expense that Corvette Forum estimates is a nearly $24,000 procedure. At this point, the two leading theories behind the engine's detonation involve a manufacturing defect – which could be why GM is so keen to tear the blown powerplant down – or a mistake on the part of Lawdogg. As Motor Authority points out, such an error could be something as simple as the Z06's owner accidentally shifting to first rather than third during his 35-mph pull. If, however, there's a deeper manufacturing problem with the Z06's engine, this might not be the only case we end up hearing about.

GM isn't liable for punitive damages in ignition switch cases

NEW YORK — A federal appeals court said General Motors is not liable for punitive damages over accidents that occurred after its 2009 bankruptcy and involved vehicles it produced earlier, including vehicles with faulty ignition switches. The 2nd U.S. Circuit Court of Appeals in Manhattan said on Tuesday that the automaker did not agree to contractually assume liability for punitive damages as part of its federally-backed Chapter 11 reorganization. GM filed for bankruptcy in June 2009, and its best assets were transferred to a new Detroit-based company with the same name. The other assets and many liabilities stayed with "Old GM," which is also known as Motors Liquidation Co. Tuesday's 3-0 decision may help GM reduce its ultimate exposure in nationwide litigation over defective ignition switches in several Chevrolet, Pontiac and Saturn models. It is also a defeat for drivers involved in post-bankruptcy accidents, including those who collided with older GM vehicles driven by others, as well as their law firms. The ignition switch defect could cause engine stalls and keep airbags from deploying, and has been linked to 124 deaths. A lawyer for the drivers and their law firms did not immediately respond to requests for comment. GM had no comment. Circuit Judge Dennis Jacobs said GM's agreement to acquire assets "free and clear" of most liabilities excused it from punitive damages claims for Old GM's conduct. He also noted that the judge who oversaw the bankruptcy concluded that the new company could not be liable for claims that the "deeply insolvent" Old GM would never have paid. The decision upheld a May 2018 ruling by U.S. District Judge Jesse Furman in Manhattan, who oversees the ignition switch litigation. Drivers have sought a variety of damages in that litigation, including for declining resale values. GM has recalled more than 2.6 million vehicles since 2014 over ignition switch problems. It has also paid more than $2.6 billion in related penalties and settlements, including $900 million to settle a U.S. Department of Justice criminal case. The case is In re: Motors Liquidation Co, 2nd U.S. Circuit Court of Appeals, No. 18-1940. Government/Legal Chevrolet Pontiac Saturn Safety gm ignition switch

2014 Chevrolet Silverado and GMC Sierra debut all-new designs, three new engines

General Motors has finally dropped the curtain on the 2014 Chevrolet Silverado and 2014 GMC Sierra. Both trucks have undergone substantial revisions with updated versions of the company's 4.3-liter V6, 5.3-liter V8 and 6.2-liter V8 engines. In a shot across the bows of both Ford and Chrysler, GM says it won't use a V6 engine adapted from passenger car applications. Instead, it developed the 4.3-liter engine based on its proven truck-duty architecture.
All three mills will boast direct injection fuel systems as well as a new cylinder head design. Combined with a revised piston, the new engines feature a smaller combustion chamber with a compression ratio of 11:1 or higher depending on the application. Cylinder deactivation and continuously variable valve timing are all part of the recipe, and each engine is paired with a six-speed automatic transmission with auto grade breaking. So far, no fuel economy or horsepower figures have been released, though GM says the new engines will best their predecessors in both areas.
Outside, the trucks feature a number of enhancements to reduce drag and wind noise, and GM claims both the Silverado and Sierra will offer buyers some of the quietest cabins in the class. Extended cab models now feature front-hinged rear doors to allow easier access to the back passenger area, and Crew Cab buyers can now select between a five-foot, eight-inch bed or a six-foot, six-inch bed. Buyers with a mind toward going off road will also rejoice in the return of the Z71 package, complete with Rancho shocks, front tow hooks and additional under-body protection.