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NHTSA closes investigation on 4.7M FCA power modules, no recall

FCA US hasn't had the best time with recalls as of late. Not only did the company recently agree to greater safety oversight and paid $105 million to the government, that came just days after hacking fears prompted a 1.4-million model recall campaign. However, a recent decision to close an investigation by the National Highway Traffic Safety Administration means that the automaker doesn't have to worry about another major recall possibly affecting 4.7 million vehicles, according to the agency's report (as a PDF). Last September, the Center for Auto Safety petitioned NHTSA to investigate an alleged problem with the totally integrated power module (TIPM) on these FCA US models. The group claimed that a fault with the component could cause a variety of maladies, including stalls, not starting, catching fire, unintended acceleration, and airbag non-deployment. At the time, it also submitted 70 cases where this had reportedly happened. According to NHTSA, "no valid evidence was presented in support of claims related to airbag non-deployment, unintended acceleration, or fire resulting from TIPM faults and these claims were found to be wholly without merit based on review of the field data and design of the relevant systems and components." The agency did find signs of an issue with the fuel pump relay in some Jeep Grand Cherokees and Dodge Durangos, but FCA US issued recalls for the problem in September 2014 and February 2015. Without anything else to go on, the Feds don't think it's worth investigating this topic any more.

Dodge reveals a few of the goodies in the Demon crate

One of the teaser trailers for the eagerly anticipated Dodge Challenger Demon featured a big crate full of goodies for the car. As with the car, though, Dodge was a bit coy about what was inside, simply saying there were 18 items, consisting of tools and parts. Now we know what tools the car gets, and they're some very nice Snap-On pieces. All of the tools and accessories are branded with the Demon logo. And the tools included should be perfect for easy tire changes at the track. Specifically, the tools include a hydraulic jack, cordless impact wrench with charger, torque wrench, and a tire pressure gauge. There's also a fender cover to protect the paint when working under the hood, and a nice carrying bag with the Demon emblem on the side. And, naturally, all of the tools are limited-edition units made specifically to accompany the Demon. If you want to do anything more involved than wheel swaps, you'll need to supply a few tools of your own. But this should be good for the weekend drag racer or autocross driver who wants to drive down to the course on street tires, then throw on the sticky rubber at the track. Also, as you may have noted, these tools only constitute six items in Dodge's count, leaving 12 others that must be car parts. We know that among the parts are some factory Demon wheels, and items that Dodge describes as "Direct Connection Performance Parts" and the "Demon Track Pack System." Details on these remain scarce, but they will probably be revealed closer to the car's debut date of April 11. Related Video:

Dodge Demon's A/C helps its supercharged Hemi make more power

Staying cool is one important key to performance. Simply, more air means more power, and cool, dense air is better than hot air. While forced induction might help make copious amounts of horsepower, turbos and superchargers produce heat. Intercoolers help, but the new Dodge Demon and its supercharged Hemi need a bit of an extra boost. In Drag Mode, the Demon's engine commandeers the car's air conditioning system to help chill things out. The Demon will have the first production application of a liquid-to-air charge air cooler chiller system. Literally, the car's air conditioning system is used to cool the air going into the engine, dropping temps by up to 45 degrees Fahrenheit. Dodge claims the system helps achieve "temperatures previously unattainable by pressure-charged street-legal production vehicles." As cool as this may sound, the technology isn't new. Ford had a prototype system in the early 2000s called SuperCooler, though that system never made it to production. While the Demon's system doesn't have a super cool name like the one from Ford, the pair essentially work in the same way. In theory, it should have the same effect as a bottle of nitrous. According to Autoweek, Ford's system bumped up the output of the F-150 Lightning by about 50 horsepower. Turns out that air conditioning isn't always a huge power suck. Related Video: