2007 Jeep Liberty Sport Sport Utility 4-door 3.7l on 2040-cars

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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.

NHTSA investigating power modules on Chrysler Group SUVs and minivans

The Center for Auto Safety is officially petitioning the National Highway Traffic Safety Administration to begin scrutinizing alleged problems with the totally integrated power module (TIPM) on about 24 Chrysler Group SUVs and minivans. The advocacy group claims that the part's failure can cause affected vehicles to stall or not start at all. NHTSA is still looking into the accusations and deciding whether a full investigation is actually warranted.
The CAS petition claims at least 70 TIPM failures, but according to NHTSA, six of the complaints are for models that don't have the modules. In 34 of the reported cases, the vehicles refused to start, and in 17 of them the engine stalled. There were also two allegations of smoke and one of a fire. However, none of these affected airbag deployment or resulted in a crash.
This petition isn't the first TIPM-related problem for Chrysler Group. A recent report in the New York Times alleged that it found 240 complaints potentially related to the issue on NHTSA's website alone. In September, the automaker also recalled 230,760 examples worldwide (188,723 in the US) of the 2011 Jeep Grand Cherokee and Dodge Durango replace the fuel pump relay circuit inside of the TIPM-7 with one external to the unit. The original part could allegedly cause the models to stall without warning. Even earlier, the company also recalled about 80,000 examples of the Jeep Wrangler and Dodge Nitro in 2007 to have the module reprogrammed.

Feds chastise Marchionne over Jeep recall, only 13% repaired so far

Following the significant outcry surrounding the General Motors and Takata airbag safety crises this year, the National Highway Traffic Safety Administration seems to be taking a much more aggressive role in pushing owners to repair their recalled vehicles. In the agency's latest move, it's urging Jeep drivers to get their models fixed. Acting NHTSA administrator David Friedman even sent a letter to Fiat Chrysler Automobiles CEO Sergio Marchionne pressing him to get more of the SUVs fixed. The problem goes back to the recall of the 2002-2007 Liberty and 1993-1998 Grand Cherokee because of the possibility for the fuel tank to rupture in some rear crashes. The campaign affected over 1.5 million vehicles, but Chrysler initially refused NHTSA's request for a repair campaign. The automaker eventually came up with a fix that involved adding a trailer hitch to provide extra protection to the tank. The feds believe the danger "will be reduced by the remedy now offered by Chrysler," according to the statement. However, this latest push comes out of NHTSA's concern that only three percent of the affected vehicles are repaired, although Chrysler maintains some 13.4 percent have actually been fixed. The agency is asking the automaker to reach out to owners "proactively," and get them to bring the Jeeps in dealers. According to the the feds' statement, the company "has nearly 400,000 parts available" to perform the fixes, and it's still producing more. Friedman's letter to Marchionne goes even further, alleging NHTSA has received reports that dealers are turning customers away who request the recall. He asks the CEO to prove within 15 days that these claims are false. "Given the low rates of repair that Chrysler has reported more than a year after the recall, significantly more aggressive steps are required," says a portion of the note. According to The Detroit News, Chrysler has subsequently promised to speed up the recall work, vowing that all dealers will have at least 12 repair kits in stock by Monday. Further, it has announced plans to ramp up its notification campaign with Facebook ads and public service announcements. Scroll down to read NHTSA's full statement on the matter, and Friedman's letter to Marchionne can be read in PDF format, here.