Forum fan-boys are complaining that the old skid plates are incompatible due to the new engine’s exhaust routing, so bear that in mind before trying to reuse your old accessories. Also available is a 6-speed manual for those that prefer to row your own. While I’m still wondering why Jeep didn’t pull a ZF 6-speed off the shelf, the Mercedes W5A580 5-speed automatic is much better suited to the Wrangler than the Grand Cherokee, delivering fairly quick shifts and a willingness to hold lower gears when called upon. While the new V6 is considerably quieter and more refined than the 3.8L, it lacks the iconic sound the old AMC inline-6 delivered. Chrysler didn’t just pluck the engine out of the Caravan and drop it into the Wrangler, as they tweaked the exhaust, added a variable speed electric fan for better cooling, relocated the alternator high up on the block and pointed it rearward to keep it dry and installed an intake snorkel (you can see it on the left in the picture above) to improve the Wrangler’s water fording ability. The new mill uses an aluminum block and dual variable valve timing to crank out a best-ever 285HP and 260lb-ft of torque, an improvement of 83HP and 23lb-ft versus the outgoing engine, while improving highway mileage by 2MPG. Regardless of which Wrangler you choose, all Wrangler models share the same engine: the new 3.6L “Pentastar” V6 which replaces last year’s ancient push-rod 3.8L V6.
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