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GM opens official investigation into C8 Corvette transmission leaks

In March 2020, a month after Chevrolet began customer deliveries of the 2020 C8 Corvette, a GM dealer technician created a Reddit thread about a leaking gearbox in a Corvette with 32 miles. That car hadn't even been sold yet. Since then, as a search of "C8 Corvette transmission leak" shows, it's been tales of woe for some owners. Something in the Tremec TR-9080 transaxle in the back of the mid-engined Corvette doesn't work as it should, the fault able to cause codes that the transmission needs service, or that the driver needs to shift to park. In some cases, the battery would die because of follow-on issues after the initial transmission code, that code preventing the car from powering down. As Autoevolution reports, GM filed paperwork with the National Highway Traffic Safety Administration in August to look into what's going on. Between forum threads and GM's investigation document, there are several issues mentioned. The most common appears to be the dual-clutch transmission leaking fluid due to gasket failures like the one suffered by one owner at 858 miles, and another for an owner currently enduring a second leaking transmission. The Midengined Corvette Forum reported that Chevy engineers redesigned the TR-9080 pan, fitting Corvettes with the new unit at some point in the 2021 model year. The original pan was stamped steel unit affixed to the engine with two studs and 13 bolts, plus "reinforcement plates." The updated pan is said to be a cast aluminum unit affixed with two studs and 17 bolts, omits the reinforcement plates, and gets a new machined new groove around its edge to seat the gasket seal. The GM paperwork now at the NHTSA mentions a P1789 code, and says one reason for it could be "debris on the park position sensor magnet causing an incorrect position reading to the TCM." This might be caused by another issue mentioned in forums, which is clogged transmission filters. GM gives instructions for returning transmission filters to the company, and a poster on one forum said the Corvette tech at the dealer where he bought his Corvette told him the automaker "requires every used transmission filter to be returned to GM."  Whatever's going on, the problems haven't stopped, and they go beyond the P1789 code. Over the weekend, a 2022 Corvette owner posted on Corvette Forums that he got a check engine light on his car after just 850 miles.

Dale Earnhardt, Jr. puts his Callaway Corvette and '55 Chevy on eBay

Dale Earnhardt, Jr. has put a couple of his personal cars up for sale on eBay. The first is a 1955 Chevy Bel Air that Junior had reworked by Funkmaster Flex, a bit of a diversion from Flex's more common Ford efforts. Junior's ride has a replacement chassis from Jim Meyer Racing, a 434 small-block tuned by Sharioff Racing to 500 horsepower, and truly thin rubber on what appear to be aluminum billet rims with Junior's former number 8 on the center caps. The interior is all custom and painted to match the outside, and those seats have been completely reupholstered. The second car is a 1999 Callaway C12, the 18th of 19 C12s built that year and featured in a 2002 issue of AutoWeek. It joined Earnhardt's private collection in 2004. Built on the base of a C5 Chevrolet Corvette and using a lot of technical know-how from Callaway's European racing program, the BMW #287 Blue Pearl C12 had its V8 bored out to 6.2 liters and graced with Callaway's Supernatural upgrade; it also has a Callaway coil-over suspension with adjustable dampers. There's new bodywork all around, and when new it cost about $200,000. At the time of writing bidding on the Bel Air was up to $80,100, the C12 was at $63,100. The auction ends Monday morning, and the winning bidders have the option of having their prizes autographed and retrieving the keys from Dale Jr himself if they're willing to go to Moorseville, NC. Featured Gallery Dale Earnhardt Jr. '55 Chevy Bel-Air View 28 Photos Related Gallery Dale Earnhardt Jr. Callaway C12 View 24 Photos News Source: Dale Earnhardt Jr via eBay [1], [2] Aftermarket Celebrities Chevrolet Auctions Coupe Luxury Special and Limited Editions Performance Classics eBay callaway callaway corvette Chevy Bel Air

GM laying off 500 workers to slow Chevy Sonic production

Due to slow sales of the Chevrolet Sonic and Buick Verano, General Motors is cutting a shift at the Orion Township plant that builds the pair. The move lays off about 500 workers, but most of them are expected to get offers to transfer to other factories, Automotive News reports. The move came just a day after GM announced adding 1,200 employees to the Detroit-Hamtramck plant. GM has been trying all year at the Orion Township factory to align production of the Sonic and Verano with their demand. The automaker first attempted idling the plant several times and eventually resorted to laying off about 100 workers. It also reduced the production rate there. With the huge rise in popularity of crossovers, demand for the plant's small cars is on the downturn. According to Automotive News, there's currently a 116-day supply of Sonics and 100 days of Veranos to sell. Delivers tell a similar tale because the Chevy is off 35.2 percent from January to September, and the Buick does little better with a 27.2 percent drop from the same period last year. While the situation at Orion Township might look rough now, big things are on the horizon. Soon, the new Chevy Bolt electric vehicle will be built there when it hits the market around 2017. Plus, the plant will also get a $245-million upgrade and 300 new jobs for another, unannounced vehicle.