4x4 Suv 6cyl Sunroof on 2040-cars

Auto blog

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.

2014 Jeep Grand Cherokee probed by NHTSA for brake problems

Remember how Toyota got in all kinds of trouble over unintended acceleration? Well, the National Highway Traffic Safety Administration is investigating Jeep over unintended braking. NHTSA has announced a probe of 20,000 Grand Cherokee SUVs from model year 2014. Nine complaints have been received, with owners alleging that their Jeeps have issued brake warnings or gone ahead and applied the brakes when no threat was presented. Each complaint alleges that the vehicles have exhibited this behavior repeatedly, leading to a "sudden reduction in vehicle speed in traffic." So basically, a system designed to prevent accidents could actually increase the odds of a collision happening. Speaking to the Associated Press, Jeep spokesperson Eric Mayne said owners whose vehicles are exhibiting this behavior should report to dealers, while adding that the automatic braking/adaptive cruise control systems can be deactivated. Related Video: Scroll down for the official bulletin on the investigation from NHTSA. Date Investigation Opened: JUN 01, 2015 Date Investigation Closed: Open NHTSA Action Number: PE15021 Component(s): FORWARD COLLISION AVOIDANCE Manufacturer: Chrysler (FCA US LLC) SUMMARY: The Office of Defects Investigation (ODI) has received nine complaints alleging inappropriate activations of the autonomous braking system in model year (MY) 2014 Jeep Grand Cherokee vehicles. All nine reports alleged unexpected braking incidents preceded by collision imminent brake warnings and resulting in sudden reduction in vehicle speed in traffic. Two complaints reported autonomous braking incidents with no objects on the road resulting in rapid increase in brake force and anti-lock braking system (ABS) activations. The complaints alleged experiencing multiple events at different locations and road conditions. A Preliminary Evaluation has been opened to assess the frequency, scope and consequences of the alleged defect. The following VOQ numbers are associated with the issues discussed in this resume: 10543837, 10713629, 10690650, 10663320, 10630362, 10596913, 10533622, 10533524, 10651269.

Chrysler registers Trackhawk trademark

There may not be many ways to forecast what an automaker is planning for the future, but there are some. Trademark applications are one of them, and Chrysler has just applied with the US Patent and Trademark Office to protect the name "Trackhawk." The question is, what's it planning on using it for? We don't know for sure, but we can put together an educated guess or two. And one guess is that Jeep will use the name to replace the letters SRT on the performance version of the Grand Cherokee.
How do we figure, you ask? From a number of developments. For starters, the SRT division has been reintegrated into the Dodge brand. Those letters currently appear on only two vehicles from outside the Dodge lineup: one is the Grand Cherokee SRT, and the other is the Chrysler 300 SRT. We've heard ruminations (however unconfirmed) that the latter could be either discontinued or possibly relabeled, and if the same proves true of the GC, the Trackhawk name could serve as a on-road performance counterpart to the Trailhawk label applied to off-road versions of models like the Cherokee and Renegade.
Logical it may be, but it's hardly a foregone conclusion. The Trackhawk name could just as easily be used for a new concept (like the Trailhawk name was in 2007), for another kind of trim level or for something else entirely. In fact we don't even know for sure it'll be used by the Jeep brand specifically, or used at all for that matter. Automakers have been known, after all, to register names they don't end up using.