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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.

RWD Lincolns are coming, fate depends partly on MKZ success

The product portfolio at Lincoln may seem a bit sparse at the moment, but if a report is to be believed, new products are on the way. TheDetroitBureau.com spoke with sources at Lincoln and Ford, who claimed the American premium brand is working on, perhaps more than one, rear-wheel-drive vehicle.
Lincoln would likely platform-share with the next-generation Ford Mustang to develop those RWD offerings in the early going. Moving forward, the report indicates that Lincoln could take the lead on other rear-drive projects in the future. As the RWD architecture continues to take shape, "most or all" of the front-wheel-drive portfolio will also be offered with all-wheel drive as an option, ala Audi.
But wait, there's more! The report also suggests that a replacement for the full-size MKS is on the way, as well as a new Navigator and a luxury crossover based on the current Ford Escape.

Ford recalls nearly 200,000 Expeditions and Navigators for fire risk

Ford is recalling 2015-2017 Expeditions and 2015-2017 Lincoln Navigators because the front blower motor could fail and cause a fire. In total, 198,482 Expeditions and Navigators will be recalled. In the official recall documents posted by NHTSA, Ford says that it “has not identified the cause of this condition.” However, Ford also says it is currently aware of 25 fire allegations related to the blower motors on these vehicles. Despite not strictly identifying the cause of blower motor fires, Ford put forth a theory in its fieldwork analysis of the issue.  “In June 2022, based on component analysis, Ford Engineering theorized that a mispositioned blower motor brush holder spring could cause an internal short or localized heating of the brush spring or holder. It is believed that when a fire initiates on the blower motor, it does so at the positive brush holder location. The variable blower controller would remain operational and there would be no signs of an overheated relay. Field data indicates that this concern typically occurs at a higher time in service, and on vehicles with higher mileage.” Since the blower motor is located on the passenger side interior behind the glovebox, the fires that start are interior fires. Ford isnÂ’t aware of any accidents related to this issue, but there is one claim of burnt hands and fingers as a result of a fire. According to Ford, warning signs of an impending fire or failed blower motor include an inoperative fan, burning smell and/or smoke from the instrument panel vents while the vehicle is on. To remedy this situation, Ford is recalling the affected SUVs and replacing the blower motor assembly with a revised part. The new part uses a blower motor assembly design utilized on other applications. If folks with these SUVs experience any symptoms of blower motor failure before the new part becomes available, Ford says they can take their vehicle to the dealer to have it replaced with a part of the same design. Once the redesigned part becomes available, the dealer will then swap it in. Owner notification letters are expected to begin on September 12 this year. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.