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GM delays 3.0-liter Duramax diesel in Silverado and Sierra pickups

Stricter testing protocols around the world are making it harder for automakers to predict launch timelines. GM is the latest to get caught in emissions nettles, the Detroit carmaker forced to delay the launch of its new Duramax 3.0-liter inline-six diesel for the Chevrolet Silverado 1500 and GMC Sierra 1500. That's what company reps told dealers in a memo seen by Automotive News this week. Dealers and buyers had been promised the Flint, Mich.-built oil-burner in early 2019, but AN wrote that the EPA certification hiccup has turned into a "slight delay." A GM spokesman told Motor1, "[We] did not attribute [the delay] to a single entity, as the truth is this is a collaborative effort between GM and several government entities. We will make the 2020MY Duramax available for dealers orders soon, and expect to deliver the first trucks to customers soon after emissions testing is complete." We know the new 3.0-liter Duramax diesel has 277 horsepower and 460 pound-feet of torque, outdoing Ford's 3.0-liter PowerStroke diesel by 27 hp and 20 lb-ft. But without final EPA paperwork, GM can't release the numbers that will show how the two engines stack up when considering fuel economy and tow ratings. The certification process has been sticky for a few other makers of late, especially since the Volkswagen Group situation in 2015. BMW had to delay the launch of four diesel models in 2016 over EPA testing. The new Ram 1500 dribbled out in a trickle last year for reasons thought to deal with EPA testing, coming as it did a year after the EPA investigated Ram's EcoDiesel engines in 2017 and 2018. More recently, WLTP testing in Europe caught out just about every automaker over there. Since we're almost halfway through 2019, the delay until the 2020 model year is only a few months. Still, GM told dealers to cancel any orders for the engine for this model year. Dealers will need to resubmit the orders once opening begins, but GM hasn't said when production will begin other than "soon." The company said that it will offer 2020-model-year replacement vehicles to customers and dealers. If prices hold into the next model year, the 2020 Silverado 1500 and Sierra 1500 with the inline-six diesel will come at a $3,890 premium over the 2.7-liter turbo four-cylinder, and a $2,495 premium over the 5.3-liter V8.

GM recalling 426,000 sedans over faulty transmission shift cable

General Motors is recalling some 426,240 sedans that may have a faulty transmission shift cable, according to a National Highway Traffic Safety Administration report this morning. The recall concerns a fault within four-speed automatic transmissions equipped on 2007-2010 Saturn Aura models, and 2008-2010 Chevrolet Malibu and Pontiac G6 models.
The report specifies that tabs on the transmission shift cable may fracture and separate. Such a fault could cause a discrepancy between the actual position of the transmission and the apparent position of the shift lever.
GM is currently working to notify owners of the vehicles in question, and dealers will check and replace shift cables free of charge. Scroll down to read the complete NHTSA report.

Chevy Volt, Nissan Leaf go nearly the same all-electric miles a year

Range anxiety? What range anxiety? The concept is a foreign one to those driving Chevrolet Volt extended-range plug-ins, and as a result, that vehicle's all-electric driving miles are actually pretty close to that of the all-electric Nissan Leaf. Such were the findings of a study conducted by the Idaho National Laboratory (INL), which tracked about 8,700 cars during a three-year period, including a bunch of Volts, Leafs and Smart ED electric vehicles. In short, even though the Volt's all-electric range of about 38 miles is less than half that of the Leaf's, the Volts' collective all-electric driving was just six percent lower than the Leaf's (the next-generation Volt will be even more electro-generous, with a 50-mile range). The logic makes sense considering typical US driving habits, in which a vast majority of people commute less than 35 miles a day. Additionally, Volt drivers obviously have no fear of running out of electricity, so they were far more likely to max out on that range than some Leaf drivers. Overall, the average Leaf is driven about 15 percent less than the national average of about 11,300 miles a year for all vehicles, while Volts are driven about eight percent more. Of all those Volt miles, about 81 percent were in all-electric mode. Additionally, Volt drivers recharged about 1.5 times a day, while Leaf drivers recharged about once a day, and about 85 percent of that charging was at home. As for non-home charging, about 20 percent of the vehicles accounted for 75 percent of the station use, so folks are definitely creatures of habit. Check out the INL's 22-page report here for more interesting details. Related Video: Featured Gallery 2016 Chevrolet Volt: First Drive View 24 Photos Related Gallery 2016 Nissan Leaf View 30 Photos News Source: Idaho National Laboratory via Hybrid Cars Green Chevrolet Nissan Electric Hybrid extended-range plug-in