Chevrolet Cruze Brand New 6,987 Miles on 2040-cars

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GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

GM ending stop-sale order on heavy-duty trucks

General Motors responded to an inquiry from Autoblog regarding a stop-sale order on its full-size heavy-duty pickup trucks. Here's GM's official statement. GM is committed to building the highest quality products possible. We paused delivery on a small number of HD pickups with the 6.6 liter Duramax engine last week to finalize an investigation into a potential quality issue. The investigation has been completed and the stop sale will be lifted for the small number of vehicles at dealerships.Customers can be assured GM’s heavy duty pickups are covered by a 5 year/100,000 mile powertrain warranty. The original article continues below. General Motors has reportedly sent its Chevrolet and GMC dealers a stop-sale order that applies to some examples of the 2022 Silverado HD, the 2022 Silverado MD, and the 2022 Sierra HD. The units affected by the stop-sale order may develop an engine-related problem. Citing anonymous sources, website GM Authority wrote that the Duramax 6.6-liter turbodiesel V8 in the affected trucks can hydrolock, which means liquid could enter the cylinders and cause a substantial amount of damage. The report does not specify where the liquid would come from; hydrolocking can happen by driving through a deep puddle of water, for example, but a large amount of coolant can cause it as well. The publication adds that the stop-sale order was assigned internal reference number N222362910. It also notes that the trucks included in it can't be sold, delivered to buyers, traded with another dealer, sent to auction, or even used for demonstration purposes until further notice. Earlier in April 2022, GM Authority reported that General Motors planned to buy back an unspecified number of Silverado HD and Sierra HD trucks due to quality-related issues with the 6.6-liter V8. Details about the problems experienced by customers haven't been released; all we know is that each truck will be replaced, though the replacement may not have the same equipment due to the ongoing chip shortage. Related video:

GM struggles to sell small cars, plans to lay off 2,084 employees at two plants

Due to low demand for some of its vehicles, General Motors plans to cut 2,084 jobs at its assembly plants in Lordstown, OH and Lansing, MI. At the same time, the automaker also announced plans to invest approximately $900 million in three of its facilities – the Toledo Transmission Operations in Ohio, Bedford Casting Operations in Indiana, and Lansing Grand River in Michigan - for future products. GM will discontinue the third shift at both the Lansing Grand River plant and the Lordstown, OH plant. The Cadillac ATS, Cadillac CTS, and Chevrolet Camaro are made at the automaker's plant in Michigan, which currently has 2,700 employees. The move to eliminate the third shift affects 810 hourly workers, as well as 29 salaried employees, starting on January 16th. The plant in Lordstown, OH currently has 4,500 employees and makes the Chevrolet Cruze sedan. The plan to discontinue the third shift will affect 43 salaried workers and 1,202 hourly employees and will start on January 23rd. As Fortune points out, sales of the Cruze are down 20 percent through October, while sales of the Cadillac ATS and CTS were down 17 percent through the same period of time. In addition to cutting the third shift at both assembly plants, the automaker plans to invest a total of $900 million between three of its facilities for unnamed future products. GM's Toledo Transmission Operations will receive $667.6 million, the Lansing Grand River Assembly plant will receive $211 million, and the automaker's Bedford Casting Operations will get $37 million. Last year, GM cut roughly 500 jobs from its Orion Township factory due to slow sales of the Chevrolet Sonic and Buick Verano, with surging crossover and SUV sales as the most likely culprit. With GM posting much healthier sales figures for the Chevrolet Equinox and Cadillac XT5 compared to the ATS, CTS, and Cruze, it looks like compact SUVs are to blame for this year's layoffs as well. Related Video: News Source: Fortune, General MotorsImage Credit: REUTERS / Rebecca Cook Hirings/Firings/Layoffs Plants/Manufacturing Cadillac Chevrolet GM Coupe Sedan Lordstown Ohio