1978 Jeep Gladiator on 2040-cars

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FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Mopar teases four of 'nearly 20' SEMA Show concepts

Yesterday it was Chevrolet. Today, Mopar has dropped some SEMA knowledge, releasing a quartet of teaser images that give us some indication of what kind of cars, trucks, and crossovers Fiat, Chrysler, Dodge, Jeep, and Ram will be showing in Las Vegas. Like Chevy, Mopar's concepts utilize both production and concept accessories, although Fiat Chrysler has gone a bit more indepth on at least one of its concepts. Immediately, the most tantalizing teaser is the one shown above. Yes, that's the back of a Challenger, and aside from the bright orange accents on the gray body, you should take notice of the badge mounted on the spoiler – yes, that says "GT AWD." To be honest, such a vehicle wouldn't be a huge shock, as both the Challenger's LX platform-mates, the Dodge Charger and Chrysler 300, are offered with all-wheel-drive options. Still, adding such a vehicle to the production cycle would give Dodge a leg up on the rear-drive only Ford Mustang and Chevrolet Camaro. Aside from that concept, FCA has also released teasers of a Ram-based concept, a 300-based concept, and what we're guessing is a Fiat 500X. We can't wait to see what the actual Fiat concept has to do with kiteboarding. As for the 300 and Ram, there's not a lot of hints on what sort of styling details they'll contain. The Chrysler has additional LED accents and what we're guessing is matte blue paint, while the Ram is based on a Hemi-powered 1500 with Rebel styling cues. This is just a very tiny sample of Mopar's final SEMA roster, which include "hundreds" of parts. There should also be a total of 20 vehicles covering all four former Chrysler Group brands, as well as Fiat. Naturally, we'll have plenty to report on each vehicle once the SEMA show kicks off in the next couple weeks.

NHTSA closes investigation into Jeep Liberty fires

The investigation that the National Highway Traffic Safety Administration opened into the Jeep Liberty in October 2013 has been closed. NHTSA received two (!) complaints about fires starting in the driver's door, thought to be caused by the master power window switch. The initial estimate was that 80,000 Libertys could be roped into a possible recall, but according to a report in the Detroit News the agency examined records for 425,000 Chrysler products that used the same window switch, including the Dodge Nitro and Chrysler Town & Country minivan.
After canvassing 265 warranty claims related to the master switches, NHTSA concluded that the rate of fires compared to the "large population of vehicles" was rather low, and that there was no trend pattern behind the few issues it did find. Perhaps with that, and the closure of the trailer hitch investigation, the Liberty can finally rest in peace.