2008 Jeep Grand Cherokee - Road Test Specs

2008 Jeep Grand Cherokee SUV

(4.7L V8 FFV 4x4 5-speed Automatic)
Vehicle
Model year2008
MakeJeep
ModelGrand Cherokee
StyleLimited 4dr SUV 4WD (4.7L 8cyl 5A)
Base MSRP$39,250
Options on test vehicleJeep Green Metallic Clearcoat Paint, Quick Order Package 22H (3.0-liter V6 turbodiesel engine, 22-gallon fuel tank, engine-block heater)
As-tested MSRP$41,055
Drivetrain
Drive typeFour-wheel drive with low-range transfer case
Engine type72-degree turbodiesel V6
Displacement (cc/cu-in)2,987/182.3
Block/head materialAluminum with iron liners/aluminum
ValvetrainDOHC, 4 valves per cylinder
Compression ratio (x:1)18.1
Redline (rpm)4,500
Horsepower (hp @ rpm)215 @ 3,800
Torque (lb-ft @ rpm)376 @ 1,600
Transmission type5-speed automatic
Transmission and axle ratios (x:1)I = 3.59, II = 2.19, III = 1.41, IV = 1.00, V = 0.83, FD = 3.73, R = 3.16, Low = 2.72
Chassis
Suspension, frontIndependent, double wishbones, coil springs and stabilizer bar
Suspension, rearSolid live axle, coil springs, trailing links, panhard rod and stabilizer bar
Steering typeSpeed-sensitive hydraulic-assist rack-and-pinion power steering
Steering ratio (x:1)Variable: 15.8:1 on-center; 13.9:1 at-lock
Tire brandGoodyear
Tire modelFortera H/L
Tire typeAll terrain
Tire size, frontP245/65R17 105S
Tire size, rearP245/65R17 105S
Wheel size17 by 7.5 front -- 17 by 7.5 rear
Wheel materialAluminum alloy
Brakes, front12.9-inch ventilated disc, 2-piston, sliding caliper
Brakes, rear12.6-inch solid disc, single-piston, sliding caliper
Track Test Results
0-45 mph (sec.)4.8
0-60 mph (sec.)8.0
0-75 mph (sec.)12.8
1/4-mile (sec. @ mph)15.9 @ 83.8
0-60 with 1 foot of rollout (sec.)7.8
Braking, 30-0 mph (ft.)36
60-0 mph (ft.)140
Slalom, 6 x 100 ft. (mph)58.2
Skid pad, 200-ft. diameter (lateral g)0.74
Sound level @ idle (dB)48
@ Full throttle (dB)74.4
@ 70 mph cruise (dB)67.3
Test Driver Ratings & Comments
Acceleration commentsPretty stout launch thanks to all that torque, but the low redline means it's over quickly and the transmission needs to upshift to the next gear at about 4,000 rpm. Still, I enjoy the stern shove of a turbodiesel.
Braking ratingPoor
Braking commentsDespite a non-defeat stability control (regardless of what the button and light indicate), tire-torturing understeer is the ultimate limit on the skid pad. Steering is very light regardless of load. Also, it was hard to maintain a steady speed because of the turbodiesel's lack of throttle response -- very elastic feeling. In the slalom, light steering masks the heavy curb weight only for so long. This test shows how soft the suspension is and how massive this Jeep really is. Stability control system limits the vehicle's performance, but I wouldn't want it any other way.
Handling ratingAverage
Handling commentsNot very confidence-inspiring from either the standpoint of its mushy pedal or dramatic dive. While the distances didn't grow much from first to last stop (hovering around 140-145 feet), that distance isn't particularly good in this era of car-based CUVs that regularly halt from 60 in the 120-130 range.
Testing Conditions
Elevation (ft.)1,121
Temperature (F)73.6
Wind (mph, direction)0
Fuel Consumption
EPA fuel economy (mpg)17 city/22 highway
Edmunds observed (mpg)19.3 mpg
Fuel tank capacity (U.S. gal.)22
Dimensions & Capacities
Curb weight, mfr. claim (lbs.)4,691
Curb weight, as tested (lbs.)4,724
Weight distribution, as tested, f/r (%)55/45
Length (in.)188.0
Width (in.)72.6
Height (in.)68.9
Wheelbase (in.)109.5
Track, front (in.)62.0
Track, rear (in.)62.0
Turning circle (ft.)37.1
Legroom, front (in.)41.7
Legroom, rear (in.)35.5
Headroom, front (in.)39.7
Headroom, rear (in.)39.3
Shoulder room, front (in.)59.1
Shoulder room, rear (in.)58.5
Seating capacity5
Cargo volume (cu-ft)34.5
Max. cargo volume, seats folded (cu-ft)67.4
Warranty
Bumper-to-bumper3 years/36,000 miles
PowertrainUnlimited
Corrosion5 years/100,000 miles
Roadside assistance3 years/36,000 miles
Free scheduled maintenanceNot Available
Safety
Front airbagsStandard
Side airbagsStandard dual front
Head airbagsStandard front and rear
Knee airbagsNot Available
Antilock brakes4-wheel ABS
Electronic brake enhancementsBraking assist, electronic brakeforce distribution
Traction controlStandard
Stability controlStandard
Rollover protectionStandard
Tire-pressure monitoring systemDirect tire pressure monitoring
Emergency assistance systemNot Available
NHTSA crash test, driver5 stars
NHTSA crash test, passenger5 stars
NHTSA crash test, side frontNot Tested
NHTSA crash test, side rearNot Tested
NHTSA rollover resistance4 stars

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