1999 Gmc Suburban 1500 4x4 on 2040-cars

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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.

Submit your questions for Autoblog Podcast #313 LIVE!

We record Autoblog Podcast #313 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #313
2014 Chevrolet Silverado and GMC Sierra introduced

Hummer EV SUV overland camper teased from GMC and EarthCruiser

At the end of March this year, GMC announced a collaboration with EarthCruiser. The automaker's Hummer team would work with the Oregon overlanding company's research and design division to develop an upfit for EVs, initially integrated into the Hummer EV pickup. For those not familiar with EarthCruiser, they’ve made wild overlanding vehicles like the Terranova, FX and EXP, pretty rad and pretty expensive stuff. The preview back then was a shadowy render that looked much like the silhouette of the Hummer SUV thanks to the living quarters slid into the pickup bed. The most apparent changes were solar panels integrated into the roof, and a cargo bay on the side of the slide-in. The duo's just put a much better tease on Instagram revealing the campfire-lit outline of what this version of an overland Hummer will look like. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. EarthCruiser is known for its pop-up roofs. This looks like a choice execution here, with near 360-degree visibility and integrated LEDs. Also, dig what looks like a platform off the back of the rig. We're going to guess that's either a slide-out or the rear flap on the camper top locked into the raised position. The cargo boxes on the side look neat, we look forward to finding out how they work and what they store. We also wonder if they'll be optional and whether they extend beyond the wheel arches, making a really wide pickup truck even wider.  We're not sure it will be "every overlanderÂ’s dream," but we are sure some stargazers are going to have some very sweet dreams in it. Slated for debut this month, look for it at Overland Expo Mountain West in Colorado, the same place the GMC Canyon AT4X OverlandX made its public debut in 2021, and where in Arizona last year the GMC showed the Sierra's outdoor potential with an Ultimate Overland Vehicle built on the Sierra 1500 AT4X.  Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.