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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.

Question of the Day: What's the most irritating car name?

You hear a lot about how the Chevrolet Nova was a sales flop in Mexico because "No va" means "it doesn't go" in Spanish; in fact, the Nova sold pretty well south of the border, and in any case most Spanish-speakers know that "Nova" means "new" in Latin and Portuguese. However, General Motors doesn't deserve to be let off the hook for bad car names, because the Oldsmobile Achieva— no doubt inspired by the excruciating "coffee achievers" ads of the 1980s— scrapes the biggest fingernails down the screechiest chalkboard in the US-market car-name world. That is, unless you think Daihatsu's incomprehensible choice of Charade was worse. Meanwhile, Japanese car buyers could get machines with cool names like Mazda Bongo Friendee or Honda Life Dunk. It's just not fair! So, what car name drives you the craziest? Related Video: Auto News Design/Style Chevrolet Honda Mazda Daihatsu Automotive History questions car names

Autoblog In Cuba: 1957 Chevy Bel Air Review

If you've been following the Autoblog In Cuba series, you may remember that my efforts to rent a car in the country were ultimately unsuccessful. Misinformation, bad planning, and a lack of rental car inventory conspired to disrupt my hoped-for driving adventure. I discovered in my week of exploration, however, that the terrific thing about Havana is that there's always another adventure to be found – if you're willing to look. A car I could drive myself might have been impossible to come by, but a ride to remember was not. After all, even when reviewing a new car, I've found that impressions about the car and the route can be credibly formed from the right seat. Starting from the parking lot of the grand Hotel Nacional, finding an interesting car for hire is as simple as walking up and down the block. Scads of classic American iron wait just outside the hotel gates, in a riot of colors and conditions befitting the tropical climate. Fords from the 1940s are plentiful – more sedans than coupes – and the glory days of General Motors are represented by enough Pontiacs and Cadillacs to fill a Bruce Springsteen B-sides album. But the Chevy Bel Air is the king of the road here, by some margin. View 30 Photos I settled on a burnt orange 1957 Chevy Bel Air convertible, in tourist-appropriate condition. I was looking for a hardtop at the request of my crew's audio/video needs, but settled on a burnt orange 1957 Chevy Bel Air convertible, in tourist-appropriate condition. This car might look good as a prop in the background on your vacation photos – hair blowing in the breeze with the ocean at your back, parked in front of Che's face in Revolution Square, etc. – but was far from pristine on a closer inspection. A perfect representative of the Cuban average. At least the price was right: $50 for two hours to make it 12 miles to Hemingway's house, and back. My driver was a kid named Daniel who looked to be about 20 years old. The Chevy doesn't belong to him, he co-drives it with the owner, but he was able to give me the basic mechanical rundown. The eight- or six-cylinder engine that Chevy shipped this convertible with was long gone. No surprise there, as nearly every American-made car I'd ridden in so far was powered by some belching Mercedes diesel. Despite it's clattering note, Daniel said the lump under the hood of the '57 drinks gas: a four-cylinder of Russian origins, pulled out of a GAZ Volga as best I can understand.