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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.

Jeep recalls 92k Grand Cherokee SUVs over electrical issue

According to the National Highway Traffic Safety Administration, Chrysler is recalling 91,559 Jeep Grand Cherokee SUVs from the 2014 model year due to some serious electrical issues. All of the affected models were built between January 8 and August 20, 2013.
The NHTSA report states that, "Due to a disruption of computer communications and loose alternator ground wires, the affected vehicles may experience random illumination of multiple instrument cluster warning lights, loss of cluster illumination and loss of anti-lock brake system (ABS) and electronic stability control (ESC) function." The loss of ABS or ESC would greatly reduce a driver's ability to control the vehicle if things get squirrely, and since these failures would not be illuminated on the dashboard display, drivers would not be warned of the issue, increasing the risk of a crash.
The recall is expected to kick off sometime this month. Chrysler will notify affected Jeep owners and dealerships "will update the ABS and instrument cluster module software and tighten the alternator ground wire," according to NHTSA.

2016 Jeep Wrangler recalled over impact sensor wiring

Fiat Chrysler just announced a pair of recalls totaling nearly 311,000 units. The bigger recall affects certain 2016 and 2017 model year Jeep Wranglers. Although, since FCA claims all of the affected 2017s are in the company's hands, really, only 2016 owners should pay attention here. The affected Wranglers suffer from an issue where wiring disconnects from impact sensors in certain types of crashes, potentially preventing the airbags and pretensioners from activating. FCA uncovered the problem in what its press release calls "a routine, in-house crash test" and claims "service availability is imminent." The affected Jeeps require a simple rewiring. The other recall, announced Tuesday, is more of a fleet issue, affecting 2007 to 2013 model-year Ram 2500 and 3500 pickups and 3500, 4500, and 5500 chassis cabs and 2011 to 2014 Dodge Charger Pursuit police vehicles. There's a problem with "premature diode wear" in alternators that are subject to "frequent load cycling, at or near maximum amperage, [or] in hot ambient temperatures." Affected alternators could short out, causing a vehicle to stall or potentially catch fire. FCA lists 182,743 affected Wranglers in the US, 18,011 in Canada, 3,087 in Mexico, and 20,948 in global markets. The Ram/ Charger Pursuit recall lists 74,833 vehicles in the US, 10,077 in Canada, 1,088 in Mexico, and 134 outside the NAFTA region. Of all those vehicles, the Jeep recall hasn't caused any injuries or fatalities, while FCA says it's aware of one "potentially related injury" and no accidents due to its fleet vehicle recall. FCA says it will notify owners/operators of affected vehicles when service appointments are available. As per usual, all the work is free of charge. Related Video: