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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 to get up to 26 miles per gallon

The 2015 Ford F-150 is one of the most important US vehicle debuts in years, be it in the pickup segment or the entire marketplace. While we've already known about the truck's engine lineup, its payload ratings and we've even learned a bit about how it drives, the truck's EPA-estimated fuel economy ratings have remained a mystery. The wait is finally over. Ford has announced numbers that put the latest F-150 as the mileage leader among gasoline-powered, full-size pickups in the US, with its new 2.7-liter EcoBoost V6 topping the charts. Starting with the entry-level naturally aspirated 3.5-liter V6, the rear-wheel-drive F-150 is rated at 18-miles-per-gallon city, 25-mpg highway and 20-mpg combined. Opting for four-wheel drive drops those numbers slightly to 17/23/19. If fuel economy is your absolute priority, then upgrading to the 2.7-liter EcoBoost V6 is the hot ticket. It improves things further to 19/26/22 in rear-wheel drive trim or 18/23/20 with four-wheel drive. The carryover naturally aspirated 5.0-liter V8 is rated at 15/22/18 as a 4X2 or 15/21/17 as a 4X4. Finally, the flagship 3.5-liter EcoBoost V6 tops the range in available torque and offers buyers 17/24/20 ratings with rear-wheel drive or 17/23/19 with four-wheel drive. "We are delivering with the toughest, smartest and most capable F-150 ever – and now the highest EPA-estimated fuel economy ratings of any full-size gas-powered pickup in America," said Raj Nair, Ford group vice president, Global Product Development, in the company's announcement. Depending on engine and drivetrain configuration, Ford contends that the 2.7-liter EcoBoost's top rating puts fuel economy up between 5 and 29 percent over the current generation, thanks in large part to the truck's lighter aluminum construction. Obviously, these are EPA estimates, and your mileage may vary – ours has. Recently, Autoblog team members have had real difficulty even approximating government mpg estimates on many EcoBoost models, including the new F-150. Scroll down to read Ford's full announcement, including comparisons to rival models.

Entry-level F-150 now offers SuperCrew, Sport Package

Ford has made a few notable tweaks to the lower end of its F-150 lineup, giving customers a more affordable version of the four-door SuperCrew body style. The popular SuperCrew could previously only be had on XLT models and above, but Ford has announced that 2014 F-150s with the base STX trim can get the more versatile body.
The STX SuperCrew brings the price of a four-door F-150 down from $34,525 to $33,145. Like the XLT SuperCrew, the STX will be available with the choice of a 5.5- or 6.5-foot bed, while a 5.0-liter V8 can replace the base 3.7-liter V6 for $4,425. Ford has not released pricing on the different bed lengths yet, but opting for the 6.5-foot bed on the XLT raises the price $1,240 and forces buyers into the 5.0-liter V8. We'd expect a similar arrangement on the STX.
The other big news for fans of affordable pickups is the addition of an STX Sport Package on the base-level truck. It adds 20-inch wheels, black exterior accents, black-and-gray cloth seats and decals on the truck's box. The Sport Package is available on all three of the STX's body styles, with Ford listing the price as $980 with current discounts.