2002 Mercury Mountaineer Base Sport Utility 4-door 4.6l on 2040-cars

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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 recalls 600,000 older-model sedans for braking issue

Ford is recalling 600,166 older-model Ford, Lincoln and Mercury vehicles over an issue that could affect braking and increase the risk of a crash. The safety recall covers certain Ford Fusion, Mercury Milan and Lincoln MKZ sedans from the 2006 through 2010 model years that were built at Ford’s Hermosillo Assembly Plant in Mexico between Feb. 22, 2006, and July 15, 2009. Ford says a valve that is normally closed inside the hydraulic control unit may get stuck in the open position or be slow to close, which could make it harder to engage the brakes and increase risk of a crash. Ford says itÂ’s aware of 15 reports of accidents and two injuries possibly related to the issue. Dealers will inspect the hydraulic control unit for signs of the problem and replace it, if necessary. The dealers will pressure-flush the system with brake fluid and replace the reservoir cap with a new one. Ford is also issuing a small recall of 33 of its 2020 F-150 trucks in the U.S. and 51 in Canada over potentially damaged spare tires. It says the bead area on the tires may have been damaged when it was mounted onto the wheel assembly, leaving it vulnerable to corrosion, separation of the bead wire and ultimately a rapid loss of air pressure and detachment from the wheel. Dealers will replace the spare tire. Affected vehicles were built at the Dearborn Truck Plant from Nov. 10-21 of this year.