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2021 Chevy Silverado, GMC Sierra fuel economy to go down due to global chip shortage

Production of the 2021 Chevy Silverado and 2021 GMC Sierra is continuing, but the global semiconductor chip shortage is resulting in a mid-year change. Or rather, an omission.  Basically, the availability of cylinder deactivation for the 5.3-liter V8 will be significantly reduced, resulting in a reduction of 1 mpg combined for affected models. This applies whether that engine has the six- or eight-speed automatic, as well as to both the regular Active Fuel Management and the more advanced Dynamic Fuel Management cylinder deactivation systems. DFM does remain with the pairing of 5.3-liter V8 and 10-speed automatic that comes standard on the LT Trail Boss and High Country. "Due to the micro controller shortage, the components that control AFM/DFM in the engine control module (ECM) have been removed," GM spokesperson Michelle Malcho told Autoblog. She also indicated that the engines will still have the AFM/DFM hardware in place, but that GM will not allow activation of the systems in the future with an ECM change.  Malcho also confirmed to Autoblog that the Silverado and Sierra's other engines will continue to have AFM and DFM, including the 2.7-liter turbo inline-four, 4.3-liter V6 and 6.2-liter V8. In an earlier statement to Reuters, she declined to say the volume of vehicles affected. "By taking this measure, we are better able to meet the strong customer and dealer demand for our full-size trucks as the industry continues to rebound and strengthen," Malcho wrote Reuters in an email. The change runs through the 2021 model year, she said. Malcho told Reuters it would not have a major impact on the Detroit automaker's U.S. corporate average fuel economy (CAFE) numbers. "We routinely monitor our fleet for compliance in the U.S. and Canada, and we balance our portfolio in a way that enables us to manage unforeseeable circumstances like this without compromising our overall (greenhouse gas) and fuel economy compliance," she said. GM's fleetwide fuel economy in the 2018 model year was 22.5 miles per gallon and was projected to rise to 22.8 mpg for 2019, according to a report by the Environmental Protection Agency. To meet federal CAFE requirements, automakers like GM often use credits from either earlier years where they faced less stringent rules and performed better than the requirements or buy credits from other automakers. GM said last month the chip shortage could shave up to $2 billion from this year's earnings.

24 Hours of Le Mans live update part three

We tasked surfing journalist Rory Parker to watch this year's live stream of the 2016 24 Hours of Le Mans. What follows is an experiment to experience the world's greatest endurance race from the perspective of a motorsports novice. Parker lives in Hawaii and has an associates degree in dropping f-bombs. For Part One, click here. Part Two is here. Really hoped I'd be able to grab an hour or two of sleep before the sun rose over Le Mans. Dark dark dark, couldn't figure out what was going on. Commentators struggled at times as well. But I couldn't do it. Endurance racing is just too exciting. Grabs my attention with both fists. Screams, "watch these men DRIVE!" A neighbor invited me over for drinks. Told him, "Can't do it, gotta watch Le Mans!" Maybe not exactly. I'll admit, at times my attention wandered. I did a load of laundry. Ate some snacks. Half listened to the commentary. Threw a hump at my wife. I learned that Patrick Long, driving #88, is big brother to Kevin "Spanky" Long. Spanky's a bit of a legend in the skate world. Always weird how top notch talent can run in families like that. Kind of surprised I've never heard that before. Worked for a skate mag for a years, met Spanky a handful of times. Someone must've told me that he has an older brother who drives race cars. Dash cams at night are scary. High powered headlights in the P1s reach almost 300 meters. Cars outrun that distance easy. Seems like they're just steering into the black and hoping for the best. But that can't be the case. People'd be dropping dead let and right. Very amused by how the guys in GT are like, "Dude, stop flashing your fucking lights before you pass." But the LMP's are all, "Suck a dick! I do what I want." Top three stayed neck and neck nearly all night long. As the sun gets ready to creep back over the horizon the top three are separated by only eleven and a half seconds. Toyota 5 and 6, Porsche 2. Audi 8 is two laps behind Porsche, beleaguered 7 is dealing with constant trouble eleven laps from the front. GTE Pro sees Ferrari 82 in first, Ford 68 and 69 right behind. To win you've gotta drive perfect, build perfect. Fours cars retired so far. I'm beginning to appreciate the endurance aspect a little more fully. Only really considered the drivers at first. The mental and physical stress driving these cars at these speeds at length would inflict. But keeping the damn things running is the real deal. To win you've gotta drive perfect, build perfect.

These are the five most ridiculous attacks on the Chevy Volt [w/videos]

It's been a long, strange trip for the Chevy Volt from the time when the now-odd-looking concept version (above) was introduced at the 2007 Detroit Auto Show to today. And now, General Motors announced that the second-generation Chevy Volt will make an appearance at the 2015 Detroit show in January. This debut represents a victory for GM with what has easily become the most politicized car of the 21st Century. There are plenty of reasons for someone to criticize the Volt, but what's amazing is just how much anti-Volt energy has been spent not on things like the styling or how the EREV setup is not as efficient as a pure-EV powertrain. As we wait for more official information on the new Volt, we thought it would be fun to go back and look at some of the most wildly incorrect reporting and strangest attacks on the Volt from the archives. There is so much good stuff out there, it was hard to pare the list down, but these are our five favorites. Amazingly, they're not all clips from Fox News. Check 'em out below. 5. GM Is Going To Stop Making The Chevy Volt In The US Do you remember when GM was about to move Volt production to China? Well, yeah, this was reported back in early 2012 when a GM executive mentioned that the automaker would get benefits of building the Volt in the places where it sells them. This was spun into a story of GM taking Obama bailout money and then running to China. The Blaze was not happy: "Given the fact that Federal government helped itself to millions and millions of taxpayer dollars under the pretense that it was going to combat high unemployment by creating 'green jobs,' it would seem that moving research and development (and possibly manufacturing) overseas is slightly, well, counterproductive." Well, of course, that never happened. There's no way to say that GM will never build a version of the Volt in China, but the news we hear rumors of these days is that GM is going to move production of more Volt parts (specifically, the motors) to Michigan from overseas. 4. The Chevy Volt Is A Fire Trap There has never been a Volt that just spontaneously lit up while driving down the road. Yes, there were Volts that caught on fire. Yes, that's a scary thing. But there has never been a Volt that just spontaneously lit up while driving down the road. These were crashed test vehicles with destroyed batteries and plugged-in vehicles that were not the cause.