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GM pauses 3.0-liter turbodiesel production due to a supplier shortage

General Motors confirmed it has temporarily stopped taking orders for trucks and SUVs equipped with the 3.0-liter Duramax turbodiesel six-cylinder engine. It blamed the last-minute pause on a supplier-related shortage. Website TFL Truck first reported the news, and a representative from General Motors quickly confirmed it. The spokesperson explained the issue is due to a "temporary part shortage" and added that production will resume "as soon as possible," meaning the Duramax engine (which is called LM2 internally) is not going away permanently. Additional details are not available, so we don't know if the issue is related to the ongoing chip shortage. Rather than delay deliveries and create a backlog, General Motors is reportedly asking its dealers to encourage buyers who want a turbodiesel engine to instead select either the 5.3-liter V8 or the 6.2-liter V8, depending on the model selected. Both are gasoline-powered units. There's no word yet on when Duramax production will resume. The shortage affects several models, including Chevrolet's Tahoe, Suburban, and Silverado 1500 and GMC's variants of these trucks. Cadillac's Escalade is temporarily diesel-less as well. Heavy Duty variants of the Silverado and the Sierra are not affected because they're powered by a different Duramax engine with eight cylinders. Motorists seeking a full-size SUV powered by an efficient turbodiesel engine are temporarily out of options because the Tahoe/Yukon and the Suburban/Yukon XL had the segment to themselves. The Duramax was surprisingly popular, too: in May 2021, GM Authority reported that the turbodiesel straight-six represented 8% of Suburban sales and 6% of Tahoe sales. Installed in a rear-wheel-drive Tahoe, the engine returns 21 mpg in the city, 28 mpg on the highway, and 24 mpg in a combined cycle, figures that make the body-on-frame behemoth more efficient than the unibody, front-wheel-drive Chevrolet Blazer that's 20 inches shorter and approximately 1,700 pounds lighter. Related video: 2021 Chevrolet Tahoe 3.0L Duramax engine

Cadillac CT5-V, XT6 and more power to the Subarus | Autoblog Podcast #616

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Consumer Editor Jeremy Korzeniewski to talk about driving the new Cadillac CT5-V, as well as the XT6. Then they discuss the news about the Subaru WRX STI and Subaru Crosstrek getting more power. Finally, they take the time to reflect on the Chevy Impala, which passes on into the annals of history. Autoblog Podcast #616 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Driving the 2020 Cadillac CT5-V Driving the 2020 Cadillac XT6 2021 Subaru WRX STI getting more power? 2021 Subaru Crosstrek getting more power Saying farewell to the Chevrolet Impala Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:

2020 Cadillac CT4 spied completely undisguised for the first time

A few weeks ago, Cadillac gave us our first look at its new small luxury sports sedan in the form of the CT4-V. This was a bit unusual considering the company hadn't shown us the regular one yet, and the reveal is still off in the not-too-distant future. But we were lucky enough to catch a normal 2020 Cadillac CT4 parked at a local gas station completely and totally undisguised. Based on what we know about other recent Cadillacs and their trim and design, this CT4 is probably a Luxury or Premium Luxury trim, since it has plenty of bright chrome and red taillights instead of dark gray ones. The differences from the CT4-V are subtle. The mesh grilles of the V are swapped for a main grille studded with small Cadillac badge shapes and the lower grille has simple slats. The little air intakes by the lower sections of the running lights are smaller than the ones on the V. This car also lacks the V's side skirts and wider canards on the edges of the front bumper. There doesn't appear to be a rear spoiler either. While we've had a good look at the exterior of the CT4, we'll have to wait until the car's full reveal later this year to know what's under the skin. We do know that it will continue to use the Alpha platform shared with the CT5, Camaro and the old ATS and CTS. We suspect the base engine will be the same 2.0-liter turbocharged inline-4 from the CT5, which makes 237 horsepower and 258 pound-feet of torque. Since the CT4-V uses a turbo 4-cylinder that makes 320 horsepower and 369 horsepower, there might not be a V6 option for the regular CT4. The CT5's twin-turbo 3.0-liter V6 makes more power and torque, so that's out, and the old ATS's naturally aspirated V6 made 335 horsepower and 285 pound-feet of torque, which would be uncomfortably close the CT4-V's specs. But we could see a V6 of some sort in an even more potent V iteration of the CT4 later.