Jeep Grand Cherokee (WK)

Jeep Grand Cherokee (WK)

Grand Cherokee (WK)
Overview
Manufacturer Jeep (Chrysler)
Production 2005–2010
Assembly Detroit, Michigan, United States
Graz, Austria (Magna Steyr)
Valencia, Venezuela (Carabobo Assembly)
Body and chassis
Related Jeep Commander
Powertrain
Engine 3.7 L PowerTech V6
4.7 L PowerTech V8
5.7 L Hemi V8
6.1 L Hemi V8 (SRT-8)
3.0 L OM642 V6 CRD
Transmission 5-speed 545RFE automatic
5-speed W5A580 automatic
Dimensions
Wheelbase 109.5 in (2,781 mm)[4]
Length 186.6 in (4,740 mm)
2006–10 SRT-8: 186.6in (4,740mm)
Width body: 73.3 in (1,862 mm)
at mirrors:84.3 in (2,141 mm)
Height 2005–07: 67.7 in (1,720 mm)
2008–2010: 68.7 in (1,745 mm)
2008–2010 SRT8: 66.7 in (1,694 mm)
Curb weight

2005 Euro 3.0 CRD (Diesel)   2,210 kg (4,872 lb)

Limited 4WD 5.7 L: 4,735 lb (2,148 kg)

NOTE: 2WD not available in Europe & UK
Chronology
Predecessor Grand Cherokee (WJ)
Successor Grand Cherokee (WK2)

The all-new third generation Grand Cherokee (WK) was unveiled at the 2004 New York International Auto Show by Jeep for the 2005 model year. New features for Jeep included, Quadra-Drive II four-wheel drive, rear-seat DVD player, and optional 5.7 L Hemi V8 engine. The 3.7 L V6 engine replaced the 4.0 L Straight-6 engine.

The design still emphasized power and luxury, with significant work done on reducing noise, vibration, and harshness (NVH). However, for the first time, Jeep also emphasized on-road performance to a similar extent as the cornerstone of its brand, off-road capability.

This new emphasis on on-road refinement led Jeep to replace the XJ-era live-axle with leading-arms front suspension (found in the ZJ and WJ) with a new design: an independent double-wishbone setup like that which debuted in the 2002 Liberty. The new Jeep changed its philosophy due to what it perceived as increasing demand in the SUV marketplace for on-road performance and decreasing demand for off-road capability.

The 2007 Jeep Grand Cherokee made its European debut at the Euro Camp Jeep held in Ardèche, France.

The Grand Cherokee received a minor facelift for 2008. The bottom part of the headlights became rounded and High Intensity Discharge (HID) Headlamps with auto leveling were added and the lower portion of the front bumper became removable to increase the approach angle for off-road use. The 4.7 L was refined, now producing 305 hp (227 kW; 309 PS), and 334 lb·ft (453 N·m).

The 2009 Jeep Grand Cherokee is available with an improved 5.7 L Hemi engine rated at 357 hp (266 kW; 362 PS) and 389 lb·ft (527 N·m) of torque. The engine uses variable valve timing to increase fuel economy.[5]


Models

2008 Jeep Grand Cherokee
  • 2005–2010 – Laredo (not in Europe)
  • 2005–2010 – CRD (Europe)
  • 2005–2010 – Limited
  • 2006–2010 – Overland
  • 2006–2010 – SRT-8


Laredo: The Laredo served as the entry-level Grand Cherokee model. It offered a plentiful array of features, including an A/M-F/M radio with single-disc CD player (later, an auxiliary audio input jack was also added), seventeen-inch alloy wheels, power windows, door locks, side mirrors and driver's seat, lumbar support, keyless entry with security system, cloth seating surfaces, tinted windows, and six speakers. Features such as leather seating surfaces, heated front seats, side airbags, a Boston Acoustics premium sound system, a navigation system and a CD and MP3 changer, as well as a CD/MP3/Cassette combo could be added to further enhance this model.

Limited: The Limited served as the uplevel Grand Cherokee model. It added an A/M-F/M radio with six-disc in-dash CD changer, a Boston Acoustics premium sound system, full-sized spare tire, and leather seating surfaces. Features such as a sunroof, heated front seats, and chrome wheels could also be added.

Overland: The Overland served as the top-of-the-line Grand Cherokee model. Based on the Limited model, the Overland added Uconnect Hands-Free Bluetooth technology, a six-disc in-dash CD/MP3 changer with navigation system, satellite radio, leather and suede seats, heated front seats, a sunroof, and chrome wheels.

Rocky Mountain Edition: Available from 2005-2007 and based on the base Laredo model, the Rocky Mountain Edition was a special edition Grand Cherokee model, and offered unique, dark-finished seventeen-inch alloy wheels, special emblems denoting the Rocky Mountain Edition, Rocky Mountain Edition embroidery on the front seat backrests, a power front passenger's seat, and a full-sized spare tire and matching spare wheel.

65th Anniversary Edition: Available in 2006, the 65th Anniversary Edition signified Jeep's 65th anniversary, and was a special edition Grand Cherokee model. Based on the base Laredo model, the 65th Anniversary Edition offered unique seventeen-inch alloy wheels, special emblems signifying Jeep's 65th anniversary, 65th Anniversary Edition embroidery on the front seat backrests, a power front passenger's seat, and a full-sized spare tire and matching spare wheel.

S Limited: Available in 2009, this "sporty" special edition Limited model offered special emblems signifying the "S Limited" model, special machined eighteen-inch alloy wheels, standard GPS navigation, special interior trim and leather-and-suede seating surfaces, and a standard power sunroof.

Engines

Years Engine Power Torque Notes
2005–2010 3.7 L PowerTech V6 210 hp (157 kW) 235 lb·ft (319 N·m) Laredo, Limited
2005–2007 4.7 L PowerTech V8 235 hp (175 kW) 290 lb·ft (393 N·m) Laredo, Limited
2008–2009 4.7 L PowerTech V8 305 hp (227 kW) 334 lb·ft (453 N·m) Laredo, Limited
2005–2008 5.7 L Hemi V8 330 hp (246 kW) 375 lb·ft (508 N·m) Limited, Overland
2009–2010 5.7 L Hemi V8 357 hp (266 kW) 389 lb·ft (527 N·m) Laredo, Limited, Overland
2006–2010 6.1 L Hemi V8 425 hp (317 kW) 425 lb·ft (576 N·m) SRT-8
2005- (2007-2008 in NA) 3.0 L OM642 Diesel V6 215 hp (160 kW) 376 lb·ft (510 N·m) Laredo, Limited, Overland

Notes

  • The 4.7 L High Output engine that first appeared with the Grand Cherokee Overland WJ was dropped from the Jeep lineup. It was used in the Dodge Dakota and Dodge Ram 1500. The 4.7 L was revised in 2008, increasing horsepower and torque to 310 hp (231 kW; 314 PS) and 330 lb·ft (447 N·m) of torque. A dedicated High Output version was dropped as a result.
  • The WK was known as a WH in international (i.e. non-US) markets.
  • The 5.7 L HEMI engine for 2005-2008 has slightly less horsepower than those found in the Dodge Ram or the Dodge Charger (330 vs 345) due to different engine control unit (ECU) programming.
  • The 5.7 L HEMI engine for 2009 and up was upgraded with Variable Cam Timing (VCT) adding 27 hp (20 kW; 27 PS) and 14 lb·ft (19 N·m) of torque.
  • The 3.0 L diesel ceased production for North America at the end of 2008. The late production models with diesel engines are commonly referred to as 2008.5 models. They can not be stamped as 2009 models due to more restrictive diesel emissions standards.

SRT-8

Jeep SRT8

An SRT-8 (Street and Racing Technology V8) version of the Grand Cherokee debuted at the 2005 New York International Auto Show. Powered by a 420 hp (313 kW) version of the 6.1 L Hemi, it also features upgraded Brembo brakes, large dual performance exhaust with polished tips (exiting out the middle of the rear), Bilstein performance gas charged shocks and modified suspension components, Mercedes-Benz NAG1 (WA580) 5-speed transmission, unique NV146 transfer case, specially designed electronic all-wheel-drive system and interior and exterior updates. A drive shaft from a diesel application, fortified Dana 44 rear differential, and 11.2" (285 mm) wide Goodyear tires in the rear (10" or 255 mm in the front) complement the performance package. The sports tuned suspension allows the Jeep SRT8 to develop 0.92 g on the skid-pad.

A road test of the 2006 production model conducted by Road & Track[6] yielded a 0 to 60 mph time of 4.6 seconds and a quarter mile dragstrip of 13.2 seconds at 104.1 miles per hour (167.5 km/h). Such numbers made the SRT-8 Grand Cherokee the fastest accelerating vehicle within the SRT8 lineup, second only to the Dodge Viper SRT10 among all SRT vehicles. There is no electronic speed governor employed, leaving the top speed rev-limited (revving to redline in top gear) to 170 mph (270 km/h).[7]

To achieve superior on-road handling, off-road gear has been removed to make the SRT-8 lighter. The SRT-8 uses an NV146 transfer case, which uses an electronic-applied clutch pack to transfer 0-50% of torque to the front axle but has no low-range or manual controls. The front and rear differentials are both open, with no limited-slip capability. Its ride stance is significantly lower and the front fascia spoiler gives the vehicle 7 inches (178 mm) of ground clearance. The Grand Cherokee SRT-8 was the first SRT vehicle to wear the Jeep emblem.

Models

Laredo: The Laredo served as the entry-level Grand Cherokee model. It offered a plentiful array of features, including an A/M-F/M radio with single-disc CD player (later, an auxiliary audio input jack was also added), seventeen-inch alloy wheels, power windows, door locks, side mirrors, and driver's seat, lumbar support, keyless entry with security system, cloth seating surfaces, tinted windows, and six speakers. Features such as leather seating surfaces, heated front seats, side airbags, a Boston Acoustics premium sound system, a navigation system and a CD and MP3 changer, as well as a CD/MP3/Cassette combo could be added to further enhance this model.

Limited: The Limited served as the uplevel Grand Cherokee model. It added an A/M-F/M radio with six-disc in-dash CD changer, a Boston Acoustics premium sound system, full-sized spare tire, and leather seating surfaces. Features such as a sunroof, heated front seats, and chrome wheels could also be added.

Overland: The Overland served as the top-of-the-line Grand Cherokee model. Based on the Limited model, the Overland added Uconnect Hands-Free Bluetooth technology, a six-disc in-dash CD/MP3 changer with navigation system, satellite radio, leather and suede seats, heated front seats, a sunroof, and chrome wheels.

A total of 14,921 Jeep SRT8s were produced.

Diesel

2005 Grand Cherokee with 3.0 V6 Turbo Diesel

In Europe, South America, South Africa and Australia, a V6 CRD engine produced by Mercedes-Benz was available from the Grand Cherokee (WK) introduction in 2005:

OM642 3.0 L CRD V6 Turbo Diesel with Variable geometry turbocharger (VGT). It produces 215 horsepower (160 kW; 218 PS) and 376 lb·ft (510 N·m) of torque at 1,600 to 2,800 rpm at a fuel consumption of 17 mpg-US (14 L/100 km; 20 mpg-imp) city and 22 mpg-US (11 L/100 km; 26 mpg-imp) highway.

Note: MPG figures are based on United States Environmental Protection Agency, European combined consumption is 27.7 mpg-imp (10.2 L/100 km; 23.1 mpg-US).

In North America the 3.0 CRD was available 2007 and 2008, however the rest of the world - i.e. UK, Europe Australia etc., it had the Mercedes sourced engine for the production life of the vehicle from 2005. The Mercedes-Benz sourced unit meets stringent Euro 4 Emission standards without the need for a diesel particulate filter - which hampers vehicle efficiency, however - it includes a diesel particulate filter (North America only) to apparently further reduce exhaust emissions. It was not however available for sale in California or certain Northeast states, due to new stricter emissions regulations for non-commercial vehicles. Vehicles could be bought used in California and Northeast states, as the regulations only applied to new vehicles.

This engine is also used in the majority of Mercedes-Benz vehicles: C-Class, CLS, E-Class, S-Class, ML-Class, GLK-Class, GL-Class, G-Class, R-Class, the Vito / Viano, and the Dodge / Freightliner / Mercedes-Benz Sprinter.

Safety

Euro NCAP

[8]

Euro NCAP test results
Jeep Grand Cherokee (2005)
Test Score Rating
Adult occupant: 26 4 /5 stars
Child occupant: 35 3 /5 stars
Pedestrian: 0 0 /4 stars

Insurance Institute for Highway Safety (IIHS)

2005-2010 Grand Cherokee IIHS scores[9]
Moderate overlap frontal offset Good
Small overlap frontal offset Not Tested
Side impact Marginal
Roof strength Not Tested

NHTSA

2005-2010 Grand Cherokee NHTSA scores[10][11][12][13][14][15][16]
Frontal Driver: 5/5 stars
Frontal Passenger: 5/5 stars
Side Driver: 5/5 stars
Side Passenger: 5/5 stars
4x2 Rollover: 3/5 stars
4x4 Rollover: 4/5 stars

Recall

May 2013: Chrysler recalled the Grand Cherokee over a rollaway risk.[17]

References

  1. ^ a b c d e f g h i j k l m n o
  2. ^ a b c d e
  3. ^ a b c d e f
  4. ^ All 2005 specifications from:
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External links

  • Jeep Grand Cherokee at the Internet Movie Cars Database