Jeep Cherokee 2008 review

Seven years after it was launched, Jeep is looking to rectify the KJ model Cherokee's shortcomings with the almost all-new KK Cherokee.

The KK has traditional Jeep styling that harks back to the XJ and looks like a scaled-down version of the current, unloved Commander model.

The boxy styling not only looks the part, but allows designers to address interior space issues. Lengthening the wheelbase and moving the spare wheel under the cargo floor from off the back door also helped here.

Platform and equipment

Cherokee continues to be built on a monocoque platform with a five-link, coil sprung live rear axle and a wishbone coil sprung independent front end (IFS) with sway bars front and rear. It was the move to IFS on the KJ that hurt its off-road ability, as IFS doesn't have the off-road travel of a live axle, but IFS is much better for on-road ride quality, stability and handling.

The KK Cherokee rides and handles well without the bump steer of its Dodge Nitro sibling. It can feel under-damped on undulations at speed, but for the most part the suspension does a good job of general duties.

Off-road, the rear end flexes nicely to keep the rear wheels on the track while electronic traction control (ETC) makes up somewhat when the front end runs out of drop and the wheels lose traction. The electronic traction control surprised us with its ability, pushing the KK up rocky ledges that would have left many other 4WDs spinning their cocked wheels.

The standard electronic traction aids restore some of the Cherokee's off-road credentials.

These include ETC and hill descent control (HDC) and the system incorporates the safety benefits of stability control (ESP).

Jeep's ETC works with open differentials or what Jeep calls brake lock differentials (BLD). The diffs themselves have no locking function per se but, when a wheel slips on low traction surfaces, the anti-lock brake (ABS) hardware stops it spinning and torque is transmitted to the wheel at the other side through the differential.

High-range 4WD is variable and can be used full time on all surfaces, making the KK the first Cherokee to offer full-time 4WD. The transfer case also offers two-wheel (rear) drive; there's no locked high-range 4WD option. A toggle switch replaces the awkward transfer lever that was always on the wrong side of the console for Australian drivers.

HDC is nothing new in that it allows feet-off-the-pedals controlled descents at a set speed using the ABS. But Jeep's HDC is better than most in that it is speed adjustable and the lowest set speed is just 1.5km/h.

Specification

KK Cherokee is available in two spec levels - Sport and Limited, with a choice of petrol V6 or turbo-diesel I4 engines. Both power plants are only available with an auto transmission; a four-speed behind the V6 or a five-speed behind the turbo-diesel.

For this test, we sampled the Cherokee Sport with the diesel engine. This vehicle retails for $43,990.

Drivetrain

The engine is the 2.8-litre, DOHC mill also found in the Jeep Wrangler and Dodge Nitro in various tunes. In the Cherokee it uses variable geometry turbocharging, intercooling and high pressure common rail fuel injection to achieve its 130kW and its 460Nm of torque at 2000rpm.

The five-speed auto is familiar from other Jeep models such as the Grand Cherokee. It uses inputs to determine driving style and adapt the best shift pattern to suit that style, be it relaxed or sporting. It can also be shifted manually via a side-to-side self-centering gate on the shifter.

This shifter is also easy to use for the HDC whereas in the petrol, with its four-speed auto, there is no sequential shift gate.

On road

On the road the CRD drive train offers great performance but, at low throttle driving around town, the Jeep's traditionally long travel accelerator pedal hampers the way the torque is delivered. It requires a lot of pedal movement and a driver will often depress it enough to give an unwanted surge of power from the punchy engine. The long travel pedal is a boon for off-road driving where it allows smooth throttle control, but it's a constant annoyance in the 'burbs, particularly for shorter drivers restricted by the non-reach adjustable steering column.

This complaint isn't an issue on the open road, although you do have to press down a long way to get the most of the engine for overtaking. The CRD engine cruises quietly and smoothly at highway speeds with ample performance on tap when required. The transmission is equally as smooth, adapting a relaxed gait when cruising or becoming more aggressive the harsher you are with the throttle.

Off road

In low range trail and rock hopping the punchy engine is better controlled for low-speed work with the BLDs sending the torque to the wheels that can use it. Engine braking is OK, not great, but the adjustable descent control does a very good, if noisy, job of controlling speed.

KK's limiting factor off road is clearance, as you often scrape the underside and front control arms. Short front and rear overhangs compensate somewhat for the low height but the front bashplate and chassis rails cop a beating in rocky terrain. Thankfully any fragile components are tucked up out of harm's way, and it's the heavy-duty chassis rails that take the brunt of the terrain. Given some more clearance, the Cherokee would be a great little off-roader. As it is, it's competent on bush tracks but extra care must be taken with wheel placement on rocky ground.

When you deal with Chrysler staff you don't have to look far to find old hot rodders and car enthusiasts. This is also evident at Jeep and is shown in the design of the 16-inch alloy wheels on the Cherokee Sport that are called “Keystone” and look similar to the mag wheels of that name from the 1970s. Alloy wheels wear 235/70R 16 tyres; on the Limited model, the wheels are 18s with 60-series rubber, so the Sport's 16s are the choice for off-road.

The functional aspect of the new Cherokee's design continues through to its interior, which is a simple, well-equipped workspace. There's more space for passengers in both the front and back than in the old model, but the driver's footwell is still restricted by the transmission hump on the left. The rear seatback is split 60:40 and reclines for comfort.

All seats bar the driver's fold flat for load space and the floor panel in the cargo area is reversible from carpeted to plastic for carrying wet or dirty cargo.

The interior is well specified in both convenience and safety features. All the usual power functions are standard, as is climate-control air-conditioning. Notably missing is an extra 12-volt power outlet, the only one being the ciggie lighter.

Safety starts with terrain-reading ABS, ESP and brake assist.

Inside there are front and side curtain airbags and a tyre pressure monitor is standard and warned us of a low tyre while on this test.

Unusual in this class but appreciated is the standard inclusion of rear parking sensors, making reverse parking easier.

Overall

Cherokee gives buyers of small 4WDs a real off-road option when compared to most compact SUVs. Its limits are set by its rather low ride height, but it will do a better job of getting out there than anything else its size. The engine and transmission work well both on and off-road, while the size and equipment make it a handy day-to-day commuter.