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Driving the 2021 Chevy Tahoe and big news from Hyundai | Autoblog Podcast #640

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by News Editor Joel Stocksdale. They discuss some of the big trucks Joel drove: the 2021 Chevy Tahoe and a Mil-Spec-modified Ford F-150. After that is a look at the latest car news including Trofeo versions of Maserati's sedans, Hyundai's new electric brand called Ioniq, and the BMW M3 Touring station wagon and Hyundai Elantra N-Line. They wrap things up with some musings on anniversary of the 19th Amendment to the Constitution and how cars played a role in it. Autoblog Podcast #640 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 Reviews2021 Chevy Tahoe Mil-Spec Ford F-150 Maserati Ghibli and Quattroporte Trofeo models revealed Ioniq becomes EV brand for Hyundai 2021 Hyundai Elantra N Line revealed BMW finally announces an M3 station wagon The 19th Amendment and how cars fit in Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Government/Legal Green Podcasts BMW Chevrolet Ford Hyundai Maserati

NHTSA closes Ford F-150 EcoBoost acceleration probe

Typically when we report on the findings of an investigation from the National Highway Traffic Safety Administration, it's because the government body has discovered a safety issue and prescribed a recall. In this case, however, NHTSA has closed an investigation into a reported performance deficit without ever getting to the recall stage.
The issue revolves around the Ford F-150 - specifically those equipped with the 3.5-liter EcoBoost engine - of which some 360,000 were built in the 2011, 2012 and 2013 model years. After receiving an initial 95 complaints, NHTSA opened an investigation last May - almost a year ago - into the reported issue of reduced engine power under hard acceleration. The agency has since received a total of 525 such complaints, and Ford itself reported receiving over 4,000.
Together, NHTSA and Ford determined that the problem resulted from cylinders misfiring, an issue itself stemming from water getting into the charge air cooler (CAC) mated to the turbochargers. In particularly humid or rainy conditions, water was found to get into the CAC, causing some of the cylinders to misfire, which in turn triggered the ECU to disable those cylinders in order to protect the catalytic converter from damage.

2015 Ford F-150 spied in the rain

Standing as quite a contrast from the spy shots of the 2015 Ford Mustang we saw earlier today, our spies also sent along these pictures of the next-generation F-150 pickup out testing in its (heavily camouflaged) full prototype body. Much of the new truck's design is hidden under the bulky coveralls, but we expect a lot of its new lines to be inspired by the Atlas concept that debuted at the 2013 Detroit Auto Show.
Perhaps the biggest unknown surrounding the new F-150 is what, exactly, its body will be made of. Earlier reports have suggested that lightweight aluminum materials may be used throughout, offering a serious reduction in weight versus previous models. But Ford engineers will need to be careful, though, as they need to keep a tight rein on costs while preserving class-competitive (if not class-leading) towing and payload capacity.
On the powertrain front, the new F-150 will undoubtedly carry on with EcoBoost engines, and we'd bet on a normally aspirated V8 as well. A diesel option hasn't been confirmed, but we wouldn't be surprised to see one some time in the truck's lifecycle. Mum's the word on when the production F-150 will be revealed, but our best guess is that we'll see it at the 2014 Detroit Auto Show.