Jeep: Wrangler Rubicion on 2040-cars

Auto blog

Jeep Wrangler 4xe's hybrid powertrain: Could it be headed to other FCA products?

On its own, the 2021 Jeep Wrangler 4xe plug-in hybrid is a big deal for the brand and the model line. It's the most powerful and most efficient Wrangler by significant margins, and it doesn't give up the off-road capability that makes the Wrangler so special. But another great thing about this hybrid powertrain is its potential to be transplanted into other FCA vehicles. Just to recap, the layout of the Wrangler's hybrid powertrain, front to back, is as follows: engine, clutch, electric motor, clutch, transmission. The engine is the same 2.0-liter turbocharged four-cylinder that's a standalone engine for the Wrangler. The transmission and electric motor are sort of one unit, with the motor and clutch replacing the torque converter of the transmission. And the transmission itself is the ubiquitous eight-speed ZF automatic gearbox. Its transmission code name is 8HP75PH. The ZF eight-speed is available in every FCA product with a longitudinally-mounted engine and rear-wheel drive or four-wheel drive, with variations in the amount of power and torque it can handle. Not only that, but the Ram 1500 and 2500 and the Jeep Wrangler and Gladiator all have powertrains that utilize the non-hybrid version of the 8HP75 transmission specifically. Even the gear ratios for that transmission as well as the 8HP70 used in the Jeep Grand Cherokee, Dodge Durango, Dodge Charger and Chrysler 300 are nearly identical to those in the 8HP75PH. And a Fiat-Chrysler representative confirmed that the transmission portion of the hybrid drivetrain is basically carry-over from the regular 8HP75. So a transplant could be a relatively simple process. As for which of these models would be the most likely to receive the hybrid powertrain first, the Jeep Gladiator and Ram 1500 would seem like good bets, since they likely have the most similar transmissions, and the Gladiator in particular because of its closely-related underpinnings to the Wrangler. Both are also highly profitable trucks that sell well and could justify the development costs of adapting another powertrain. And in the case of the Ram, there's the impending F-150 hybrid to think about. Although Ram isn't going after a fully electric model, a PHEV could be a nice middle ground. A potential limiting factor would be whether the hybrid powertrain would be sufficiently robust to handle heavy payload and towing demands, particularly over longer periods.

Chrysler recalling nearly 141k vehicles over electrical woes

Software glitches that randomly illuminate warning lights and cause instrument cluster blackouts are forcing Chrysler to recall 140,800 vehicles, The Detroit News reports. The automaker is recalling 132,000 2014 Jeep Grand Cherokees, 91,559 of which are in the US. In addition to the Jeep recalls, Chrysler is adding 10,800 2014 Ram 1500, 2500 and 3500 trucks to the list for similar problems.
Chrysler reportedly says, "Both events occurred infrequently and appeared to resolve themselves by tuning the vehicle's ignition off and then on."
Engineers discovered a problem with the anti-lock-braking system software that causes the instrument cluster display of the Grand Cherokee to illuminate warning lights and black out - even its ABS and electronic stability control systems are affected. To fix the Jeeps, Chrysler will update the vehicle's software.

NHTSA investigating 630k Jeep Wranglers for possible airbag fault

The National Highway Traffic Safety Administration is opening a preliminary evaluation into a possible wiring problem on some 2007-2012 Jeep Wrangler models that could affect airbag deployment. The government agency has 221 complaints alleging that the airbag warning light is illuminating, and that could indicate that the safety devices might not deploy in a crash. If a recall is necessary, an estimated 630,000 vehicles could be affected. According to the documents from NHTSA (as a PDF here), a "faulty clockspring assembly in the driver side airbag electrical circuit" could be the culprit. Also, some of the affected Wranglers are showing a fault code that indicates the safety device wouldn't deploy in an accident. However at this time, there are no reports of injuries related to this potential problem. NHTSA's preliminary evaluations are simply meant to investigate and don't necessarily lead to a recall. This isn't the first time for a potential problem like this on the Wrangler, though. A clockspring issue already led to a safety campaign for 2008-2012 right-hand drive Wranglers and an extended warranty for 2007 left-hand drive examples. Related Video: INVESTIGATION Subject : Air Bag Clockspring Wiring Failure Date Investigation Opened: JUN 19, 2015 Date Investigation Closed: Open NHTSA Action Number: PE15025 Component(s): AIR BAGS All Products Associated with this Investigation Vehicle Make Model Model Year(s) JEEP WRANGLER 2007-2012 JEEP WRANGLER 2-DR 4X4 2007-2009 JEEP WRANGLER 4-DR 4X2 2007-2009 JEEP WRANGLER 4-DR 4X4 2007-2009 JEEP WRANGLER SAHARA 2007 Details Manufacturer: Chrysler (FCA US LLC) SUMMARY: The subject vehicles display an airbag warning light that may indicate a failure of the clockspring wiring in the driver side air bag circuit. Several complaints cite the following diagnostic trouble code (DTC): Code B1B02 Open Squib to driver's air bag. This DTC would indicate a no-fire condition (disablement) for the driver air bag. ODI investigated the RHD (right hand drive) Wrangler for a clockspring issue under PE11-019 which led to NHTSA Recall 11V258 on model year (MY) 2008-2012 RHD Wranglers as well as an extended warranty campaign on MY 2007 LHD Wrangler vehicles. This investigation covers the MY07-12 LHD (left hand drive) Wranglers.