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NHTSA upgrades Ford floor mat unintended acceleration probe

According to a Bloomberg report, the National Highway Traffic Safety Administration has upgraded an investigation into complaints of unintended acceleration lodged against Ford vehicles. The investigation began in June of 2010 when just three complaints had been received and it only concerned the Ford Fusion and Mercury Milan, but this was at a time when the phrase "unintended acceleration" made grown men go pale. With 49 additional complaints received since then, the investigation has been reclassified as an engineering analysis - the last phase before a recall - and it has been expanded to include the Lincoln MKZ, making for a total of "around 480,000" units affected between the three sedans from the 2008 to 2010 model years.
The ostensible cause is that floor mats are trapping the accelerator pedal, but according to a Ford statement at the time, the entrapment is due to owners placing the optional all-weather floor mats, or aftermarket floor mats, on top of the car's standard floor mats. NHTSA has backed up that assessment, pinning the blame on "unsecured or double stacked floor mats."
On the face of it, it would appear that NHTSA has upgraded the status not because of Ford's error, but owner error, and Ford has stated publicly that it is "disappointed" in NHTSA's move. On top of NHTSA still being skittish after that other unintended acceleration debacle, it could be seen to be taking its time investigating all of the variables: it's reported that Ford changed its accelerator pedal design in 2010, a "heel blocker" in the floorpan has been considered a potential culprit in how the floor mats could be trapping the pedal, some drivers have said the floor mats weren't anywhere near the pedal, and according to a report in the LA Times, in "a letter sent by Ford to NHTSA in August 2010, the automaker said it found three injuries and one fatality that 'may have resulted from the alleged defect.'"

Ford recalls 382k vehicles across six campaigns

Ford needs to repair a total of 381,633 vehicles in North America across six newly announced campaigns, including five safety recalls and one compliance recall. By far the largest of these campaigns covers the 342,271 examples of the 1998-2003 Windstar to double check an earlier recall repair. Among these, 283,413 are in the US and 58,858 are in Canada. The combination of corrosion and stress can cause cracks in the rear axle and eventually lead to the part to snap completely. The company reports a small number of accidents might be connected to this, but there are no injuries. The minivans were recalled for this issue back in 2010, and it was investigated by NHTSA. According to Ford's latest announcement, the reinforcement brackets on some of these models might not have been installed correctly. This time, dealers will perform an inspection. Minivans with incorrectly installed brackets will get a new rear axle. The rest of the owners will be offered a deal to replace the part at a reduced cost. The next largest campaign covers 36,857 examples of the 2015 F-150 to fix a problem with the adaptive cruise control. Specifically, there are 33,481 affected trucks in the US, and 3,376 in Canada. According to Ford, "when passing a large, highly reflective truck" the radar in the system can misidentify a semi as being in the same lane as the pickup. The collision warning system would then activate, slowing the F-150. There's one report of an accident with this happening but no injuries. The fix is simply an update to the adaptive cruise control module software. Ford also has a recall for 1,477 examples of its 2016 F-53 and F-59 stripped chassis models, and they're all located in the US. A manufacturing issue might allow the trucks to shift into reverse without the driver first applying the brakes. There are no reports of any accidents from this, though. To repair the problem, the models get a new transmission shift control bracket and an adjustment to the shift cable. The Blue Oval's safety compliance recall covers 708 examples of the 2016 Fusion and Lincoln MKZ, including 658 of them in the US, 28 in Canada, and 22 in Mexico. On these models, a manufacturing problem with the fuel tank could allow it to crack in a crash, which isn't allowed under federal rules. There are no reports of accidents, injuries or fires. The fix will be a new fuel tank for all of them. The company is also repairing 251 units of the 2015 Taurus and Lincoln MKS, plus the 2016 Explorer.

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.