2005 Jeep Grand Cherokee Review

The introduction of the all-new Jeep Grand Cherokee represents a bold move by DaimlerChrysler. The 2005 Grand Cherokee is not a Jeep from the tradition of American Motors, but rather a Jeep from the Mercedes-Benz tradition, with a little Dodge Magnum attitude thrown in.

You can't mistake it for anything but a Jeep. Yet its proportions are completely different from before, with more steel and less glass, a laid-back windshield, the trademark giant wheel well flares, and a slickly angular body without the cladding of the previous generations; just one small spear. The D-pillar has been laid forward, which cuts into cargo space, but it sure looks cool. It's got a replaceable chin spoiler on it, and it looks mean. Inside, it's got nearly 70 cubic feet of storage and three modern, if not brand-new, powerplants.

Interior materials are dramatically improved over the previous model's, which left much to be desired. The atmosphere inside the new Grand Cherokee is light, comfortable, and more enveloping than the previous model, more bolted in than hanging on from the driver's perspective, with lots of seat adjustment, excellent outward vision around the relatively slim posts, and all the switches and controls clearly labeled and easy to find and use.

For the first time, a Jeep can be married to the engine that put Chrysler back on the map, the 5.7-liter Hemi. It's particularly good for towing or driving at higher elevations. However, we found the 4.7-liter V8 worked great. The standard V6 is a vast improvement over Jeep's old inline-6. A new suspension gives the Grand Cherokee much better handling, leaning less in corners, along with better ride quality. Its turning radius is tighter, too, good when driving off road or in crowded parking lots.

Jeep engineers have come up with a larger, edgier and more macho SUV with an engine that's among the most powerful in the segment. This is after years of being afflicted with old, weak engines and saddled with a small cargo compartment.

To be honest, we didn't like the old Grand Cherokee very much, because we never thought it was very grand. It was small inside, with a dark, confusing interior, too much plastic, really cheap seats, and not much cargo space, but always fun off-road. This new Grand Cherokee erases all the bad stuff about the old version, but keeps the mountain-goat-like off-road performance, finally becoming grand in the process.

The basic Laredo comes standard with the Chrysler-made 210-horsepower single-overhead-cam 3.7-liter V6, borrowed from its sister trucks, the Jeep Liberty and Dodge Ram, with its own five-speed overdrive automatic transmission. The 3.7 replaces the tired, old 4-liter inline six engine that was in the last Grand Cherokee and was a relic from American Motors' inventory of 25 years ago (still used in the Wrangler). The V6 gets an EPA-rated 16/21 mpg City/Highway, while the V8s get 14/21. Both automatics feature the Chrysler/Mercedes-Benz manual override function for the automatic transmission.

The 4.7-liter V8 engine in our test truck was terrific. We don't want to undersell the power and torque of the Hemi, but this smaller, slightly less thirsty V8 engine was a paragon of power and smoothness for around-town and highway driving if you don't live in the mountains and don't usually tow anything, where the Hemi would be best suited. It has a broad torque band, a lovely sound, and an electronic throttle control (drive-by-wire) that's comfortable and easy to use and very precise in those tricky downhill off-road situations. Both V8 engines get a heavy-duty five-speed automatic transmission with a direct fourth gear for towing.

The Hemi engine in the Jeep features automatic cylinder deactivation, which shuts down four of the engine's cylinders whenever it detects a steady-state cruise condition, and reactivates them on demand, for up to 20 percent additional fuel economy.

The new independent front suspension system, used on both 2WD and 4WD models works beautifully and is some 100 pounds lighter than the old suspension. It's coupled with new lighter, more compact and more precise power rack-and-pinion steering that's reasonably quick and accurate, and nicely weighted. There's plenty of understeer dialed into the handling, good for a vehicle this tall and this heavy where you don't want directional changes to happen too quickly. There seemed to be a more flatfooted, glued-down attitude with this big Jeep, with far less body roll than the previous model, which had a bit of body roll built into it that paid some comfort dividends off-road. This one is just as comfortable on- and off-road without it.

Front suspension travel is increased by almost 10 percent over the previous Grand Cherokee, and the new steering geometry yields a tighter turning circle, which counts heavily off road. A new five-link rear suspension combined with the new steering and new front suspension produced a boulevard ride, and cornering prowess, like no other Jeep in history, an enormous improvement. We don't usually go around flinging 4500-pound SUVs into corners, but this one invited a little bad behavior, which was very rewarding within the limits of its tires. We can only imagine what a Hemi version with DHS and ESP would be like.

Because it does not have a frame underneath it, the Grand Cherokee is rated to tow 3500 pounds, only about half what the Durango is rated for. That's not to say the Jeep is weak. Far from it. It's much stiffer and stronger than the previous version, with nary a squeak or a rattle in our short experience with it.

Four-wheel-drive systems vary by packaging and come with confusing names and complicated mechanical differences. If you order a V6 4WD, you will have a Quadra-Track I single-speed, full-time four-wheel-drive system called NV140, which uses electronic clutches in the center differential to pass out torque to the four tires as needed for best traction. No switches, no buttons, no handles, no low range.

If you want more flexibility, you will have to buy one of the V8s, which have a Quadra-Trac II two-speed manual transfer case, and a locking low range. Both systems are slightly biased, with 52 percent of the torque normally going to the rear tires and 48 percent to the front.

A new wrinkle is a third four-wheel -drive system. The optional Quadra-Drive II system uses a set of electronic limited-slip differentials (ELSD) at the front, center, and rear of the drive system. ELSD replaces the Vari-Lock progressive axles in the Quadra-Drive system, with quicker response to changing conditions and greater torque capacity, for use with the Hemi engine in particular.