1983 Jeep Cj7 Renegade Auto Trans on 2040-cars

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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.

2014 Jeep Grand Cherokee EcoDiesel

Choose Your Own Adventure... But Choose Wisely
Jeep has got you covered. We can say this without even having to know what it is you want, because there's hardly an option or configuration that you won't find in the 2014 Grand Cherokee. There are three different engines, three different four-wheel-drive systems (plus rear-wheel drive), four different trim levels - not counting SRT - two different suspension setups and five different settings for various off-road terrain conditions. If you happen to check the box for Quadra-Lift, you'll also have five different ride-height settings for the driver-selectable air suspension.
As you might expect with so many customization possibilities, the way a buyer checks the options sheet can have a profound effect on the final product and its capabilities, to say nothing of its price. Nowhere is that more true than with the Grand Cherokee's choice of engines, with the brand-new 3.0-liter EcoDiesel V6 stealing the spotlight from the still excellent gasoline-fueled 3.6-liter Pentastar V6 and 5.7-liter Hemi V8 powerplants that carry over from last year. No matter which engine you choose, though, it will be paired up with Jeep's new standard eight-speed automatic transmission from ZF. This, ladies and gentlemen, is very good news indeed.

Chrysler axes old V6s, goes all-Pentastar

Old technology has a way of lingering on, particularly at Chrysler headquarters in Auburn Hills. So while the Pentastar V6 has replaced the older engine architecture in just about every application, it still soldiered on in some export markets. But the introduction of a new 3.0-liter Pentastar V6, produced in Michigan and meant only for the Chinese market, has put the final nail in the old engine's coffin.
Fitted into the 2014 Jeep Grand Cherokee and Jeep Wrangler just introduced to China at the Chengdu Motor Show, the downsized six uses the same architecture as the larger 3.6-liter Pentastar V6. But because of its 2,997cc capacity, it can be exported to China without the increased duty the 3.6-liter or even 3.2-liter Pentastar engines would incur. The 3.0-liter V6 develops 230 horsepower at 6,350 rpm and 210 pound-feet at 4,400 rpm.
Admittedly, it's unlikely, but even though the engine was said to be created solely to undercut tax thresholds in China and Europe, the 3.0-liter Pentastar has recently surfaced in rumors of an application here: as the boosted heart of a potential Cherokee SRT with anywhere from 375 to 410 hp.