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Ford finds flex-fuel engine design plays big role in emissions output

How bad is ethanol for your engine? There's been a lot of debate on this issue as the US considers upping the biofuel content in the national gasoline supply from 10 percent (E10) to 15 percent (E15). The ethanol industry and some scientists say higher ethanol blends show no "meaningful differences" in new engines while the oil industry says ethanol creates health risks. Researchers working at the Ford Research and Innovation Center decided to take a closer look at how a wide range of gas-ethanol blends - E0, E10, E20, E30, E40, E55 and E80 - affected the emissions coming out of a flex-fuel 2006 Mercury Grand Marquis. To see the full report, printed in the journal Environmental Science & Technology, requires payment, but there is an abstract and Green Car Congress has some more details. The gist is that, "with increasing ethanol content in the fuel, the tailpipe emissions of ethanol, acetaldehyde, formaldehyde, methane, and ammonia increased." At least NOx and NMHC emissions decreased. The researchers say that the effects are due to the fuel and "are expected for all FFVs," but that the way that a manufacturer calibrates the engine will affect NOx, THC, and NMOG emissions. It's this last bit that's important, since the researchers found, "Higher ethanol content in gasoline affects several fundamental fuel properties that can impact emissions. ... These changes can have positive or negative effects that can depend on engine design, hardware, and control strategy. In addition to direct emissions impacts, higher ethanol content fuel can also provide more efficient combustion and overall engine operation under part-load conditions and under knock-limited higher-load conditions." So, as we head towards more ethanol in our fuel supply (maybe), manufacturers are going to need to learn how to burn it most efficiently.

NHTSA investigating Ford's solution to May 2014 power steering recall

The National Highway Traffic Safety Administration is investigating a complaint that Ford's response to a May 2014 recall of the 2008 to 2011 Ford Escape and Mercury Mariner doesn't quite go far enough to solve a troubling power-steering problem. Roughly a year ago, Ford recalled nearly a million vehicles after it was found that a problem with the torque sensor's communication with the power steering control module could cut steering assistance for drivers. While manual steering would still be available, the problem was enough to ask drivers to report in to have the PSCM inspected, and if necessary, replaced (along with the torque sensor, or in dramatic cases, the entire steering column). That would only happen, though, if trouble codes were being thrown. If there weren't any problems, dealers were told to simply update the PSCM's software so that any issues between it and the torque sensor would simply throw a visual and audio warning – power steering would still be maintained. The petitioner claimed that following the recall work, he still experienced a problem with the torque sensor. According to NHTSA, a claim was made that Ford didn't go far enough in its solution to the problem, and that "the software update itself may in fact cause further issues with the affected vehicle's power steering, causing it to fail, and ultimately requiring replacement of the torque sensor or entire steering column." The petition was filed in early February and is now officially being looked into by NHTSA.

Ford announces two recalls, 442k vehicles affected in North America

Ford is announcing two recalls for North American that affect a total of 442,300 vehicles and multiple model lines. The larger campaign covers the possibility of electric power steering systems that can fail in the 2011-2013 Ford Flex, Taurus, Lincoln MKS, and MKT; the 2011-2012 Ford Fusion and Lincoln MKZ; and the 2011 Mercury Milan. This recall affects 422,814 vehicles in North America, including 393,622 in the United States, 25,195 in Canada, and 3,997 in Mexico. According to the company, an intermittent electrical connection can cause the power steering to cut out, although manual steering would still work. Ford knows of four minor accidents from this issue, but there are no injuries. Depending on trouble codes from the vehicle, dealers will either upgrade software for the power steering control module or replace the steering gear. The second recall covers 19,486 examples of the 2015 Ford Mustang with the 2.3-liter EcoBoost turbocharged four-cylinder engine with a production date between February 14, 2014, and February 10, 2015 at the Flat Rock Assembly Plant. Specifically, there are 19,095 of these in the US and 391 in Canada. These pony cars can show elevated underbody temperatures, which can lead to degradation of the fuel tank, fuel vapor lines, and parking brake cable seals. There are no reports of accidents, injuries or fires from this, though. To fix things, dealers will install a better-insulated fuel tank shield, add thermal patches around the tank and parking brake cable, and put thermal wraps around the fuel vapor lines. You can read the specific build dates and locations for the models affected by the power steering issue in Ford's press release below the video. Related Video: FORD ISSUES TWO SAFETY RECALLS IN NORTH AMERICA DEARBORN, Mich., May 27, 2015 – Ford is issuing two safety recalls in North America. Four minor accidents and no injuries are attributed to one of these conditions.