2005 Jeep Grand Cherokee 4wd on 2040-cars

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100,000 Jeep Cherokee models subject to further 9-speed recalibration

It seems that the software problems with the nine-speed automatic gearbox in the Jeep Cherokee continue to mount. The programming already caused multiple development delays and even postponed the Cherokee's market launch by roughly two months. Now, Jeep has issued another recalibration to hopefully assuage unhappy drivers.
According to Automotive News, this reflash for the allegedly jerky transmission covers over 100,000 Cherokees built before May 5, but it's not technically a recall. If owners are having problems and complain to the dealer, they get the new software. Otherwise, they continue with the current version. New vehicles on dealer lots also receive the latest revision to the programming. It takes only around five minutes to install, but technicians need to take the Cherokee on a test drive to adapt the gearbox to the changes.
The Cherokee's transmission software has been problematic practically since the beginning. The Jeep plant in Toledo, OH, briefly idled its second-shift workers last year to take care of the issue. Since the launch issues for the crossover, demand has been strong. Jeep added another 1,000 temporary workers to the Toledo factory to keep up, and sales were on par with the Wrangler in just its first two months.

Jeep Wrangler Polar is a tasty frozen treat

Perhaps it's because we've seen so many kitted-out examples over the years, but it seems to us that the Jeep Wrangler tends to wear its special-edition duds better than most models. It might be the icon's familiar rectilinear proportions or the inherent bolt-on look of its extremities - bumpers, mirrors, lighting, and step rails - but we've seen precious few factory specials that look anything but excellent.
Case in point: this new Jeep Wrangler Polar unveiled at the Frankfurt Motor Show. This European-market limited-edition model is said to be a celebration of winter driving, which evidently works out to a body-color hardtop, black-accent seven-slot grille, 18-inch gloss black wheels, Trac-Lok limited-slip differential and a hard hat for the spare tire. Finished here in Hydro Blue (Billet Silver Metallic and Bright White are also available) and a black interior with Polar White accents, the Polar edition features badges displaying 78° S and 106° E longitude and latitude coordinates for Vostok, Antarctica.
This new Jeep will be available in both standard and Unlimited formats with either the 3.6-liter Pentastar gas engine or the still-not-for-US 2.8-liter turbodiesel when it bows early next year. For further details, check out our gallery above and the press release below.

Next-gen Jeep Wrangler to pack 300-hp Hurricane turbo four

Fiat Chrysler has been working for some time now on a new turbocharged four-cylinder engine. Dubbed "Hurricane," the engine is now said to produce nearly 300 horsepower. And its first application could be in the next-generation Jeep Wrangler. With that much power coming from such a small engine, the Hurricane would offer an even higher level of specific output than the 1.75-liter engine in the Alfa Romeo 4C – one of FCA's highest-stressed engines – far eclipsing the 4C's 120 horsepower per liter with 150 hp/l. By way of comparison, the latest 2.0-liter, four-cylinder version of Ford's EcoBoost engine produces "only" 245 hp (122.5 hp/l). The 2.0-liter turbo four in the latest Mercedes-AMG CLA45 and GLA45, however, produces 375 hp. To get so much out of so little an engine, FCA will utilize a twin-scroll turbocharger and variable valve timing. That could make it ideally suited towards a compact performance model, but according to Automotive News, its first application could be in the new the Wrangler. The larger 3.6-liter Pentastar V6 produces 285 hp, nearly as much as the Hurricane will. But with a smaller engine, an eight-speed transmission, and aluminum construction, the new Jeep will likely benefit from dramatically-improved fuel consumption. Related Video: