🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation:

WK

Year:

2008

Platform Code:

WK

👋 Introduction

Segment:

Mid-size Luxury SUV

Positioning:

Off-road capability blended with on-road comfort and luxury features, competing with established players like the Toyota 4Runner and Ford Explorer, while also targeting premium options like the BMW X5.

Key Competitors:

Toyota 4Runner, Ford Explorer, Chevrolet TrailBlazer, Nissan Pathfinder, BMW X5, Lexus RX.

Features 2008:

Available Hemi V8 engine, advanced 4x4 systems (Quadra-Trac II, Quadra-Drive II), luxurious interior appointments, comfortable ride quality, strong towing capacity.

📋 Manual Details

Coverage:

Comprehensive factory service, repair, and workshop procedures for the 2008 Jeep Grand Cherokee WK.

Estimated Pages:

2000+

Type:

Factory Service Manual (FSM) / Workshop Manual

Language:

English

Format:

Digital Download PDF

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system.

Drivetrain:

Transmission (automatic 545RFE, 42RLE), transfer case (NV245, NV244), front and rear axles, driveshafts, differentials.

Chassis:

Suspension (front independent, rear multi-link), steering system, brake system (front vented discs, rear discs), wheels and tires.

Electrical:

Battery, charging system, starting system, lighting, instrumentation, power accessories, fuse box diagrams, wiring schematics.

Body:

Exterior body panels, interior trim, doors, glass, roof system, bumpers, seats, HVAC system, body control modules.

Electronics:

Powertrain Control Module (PCM), Transmission Control Module (TCM), Anti-lock Braking System (ABS), Electronic Stability Control (ESC), airbag system (SRS), infotainment system.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, tire rotation, brake inspections.

Diagnostics:

Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs), component testing procedures.

Repair:

Engine overhaul, transmission overhaul, brake caliper replacement, suspension component replacement, electrical component repair, body panel repair.

Installation:

Component replacement procedures, accessory installation guidelines, software updates for modules.

Specifications:

Torque specifications, clearances, fluid capacities, electrical specifications, diagnostic parameters.

Depth:

Complete rebuild procedures, advanced diagnostic techniques, detailed component removal and installation instructions.

📊 Manual Specifications

Format Details:

Searchable PDF with high-resolution diagrams and illustrations, printable pages.

Quality:

Factory original quality, clear and legible text and images.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Option 1:

3.7L PowerTech V6

Displacement V6:

3.7 liters (226 cubic inches)

Bore Stroke V6:

3.66 x 3.57 inches

Compression Ratio V6:

9.6:1

Horsepower V6:

210 hp @ 5,200 rpm

Torque V6:

235 lb-ft @ 4,000 rpm

Engine Block Material V6:

Cast Iron

Cylinder Head Material V6:

Aluminum

Valvetrain V6:

SOHC, 3 valves per cylinder

Engine Option 2:

4.7L PowerTech V8

Displacement V8 47:

4.7 liters (285 cubic inches)

Bore Stroke V8 47:

3.72 x 3.39 inches

Compression Ratio V8 47:

9.1:1

Horsepower V8 47:

231 hp @ 4,500 rpm

Torque V8 47:

304 lb-ft @ 3,600 rpm

Engine Block Material V8 47:

Cast Iron

Cylinder Head Material V8 47:

Aluminum

Valvetrain V8 47:

SOHC, 2 valves per cylinder

Engine Option 3:

5.7L HEMI V8 (Optional)

Displacement Hemi:

5.7 liters (345 cubic inches)

Bore Stroke Hemi:

3.92 x 3.58 inches

Compression Ratio Hemi:

9.6:1

Horsepower Hemi:

357 hp @ 5,200 rpm

Torque Hemi:

390 lb-ft @ 4,000 rpm

Engine Block Material Hemi:

Cast Iron

Cylinder Head Material Hemi:

Aluminum

Valvetrain Hemi:

OHV, 2 valves per cylinder with MDS (Multi-Displacement System)

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline, Flex Fuel (E85) for 5.7L HEMI

Ignition System:

Distributorless Ignition System (DIS) with coil-on-plug

Emission Control:

Catalytic converter, On-Board Diagnostics II (OBD-II)

🔧 Transmission

Standard Transmission:

5-speed Automatic 545RFE (with 3.7L V6 and 4.7L V8)

Optional Transmission:

5-speed Automatic 545RFE with Electronic Range Select (ERS) (with 5.7L HEMI V8)

Optional Transmission 2:

4-speed Automatic 42RLE (available on lower trims with 3.7L V6)

Transmission Cooling:

Internal transmission cooler, external auxiliary cooler (with towing package)

Transmission Fluid Type:

ATF+4 (Chrysler Material Number 05127382AB)

📐 Dimensions

Wheelbase:

114.8 inches (2,916 mm)

Length:

189.8 inches (4,821 mm)

Width:

74.8 inches (1,899 mm)

Height:

69.9 inches (1,775 mm)

Ground Clearance:

Up to 8.3 inches (211 mm) depending on configuration

Passenger Volume:

104.2 cubic feet (2,950 liters)

Cargo Volume Behind 2Nd Row:

33.5 cubic feet (948 liters)

Cargo Volume With 2Nd Row Folded:

68.5 cubic feet (1,939 liters)

Curb Weight V6:

4,520 - 4,750 lbs (2,050 - 2,154 kg)

Curb Weight V8:

4,740 - 5,030 lbs (2,150 - 2,282 kg)

Towing Capacity:

Up to 7,400 lbs (3,357 kg) with optional towing package and HEMI V8

🛡️ Safety Features

NHTSA Frontal Driver:

Good

NHTSA Frontal Passenger:

Good

NHTSA Side Driver:

Good

NHTSA Side Rear Passenger:

Good

NHTSA Rollover Resistance:

3 out of 5 stars

IIHS Frontal Offset:

Good

IIHS Side Impact:

Good

ABS:

Standard 4-wheel Anti-lock Braking System (ABS)

Esc:

Standard Electronic Stability Control (ESC) with Electronic Roll Mitigation (ERM)

Traction Control:

Traction control system (TCS)

Airbags:

Front advanced multi-stage airbags, front side-curtain airbags, supplemental side airbags.

Seatbelts:

3-point seatbelts with pretensioners and load limiters for all seating positions.

Child Anchors:

LATCH (Lower Anchors and Tethers for Children) system

💡 Technology Features

Infotainment System:

Optional Uconnect Navigation System with SiriusXM Satellite Radio, voice commands, and auxiliary audio input. Standard Sirius satellite radio. Available Boston Acoustics premium audio system.

Driver Assistance Features:

ParkView Rear Back-Up Camera (optional), ParkSense Rear Park Assist System (optional).

Connectivity Options:

Auxiliary audio input jack, optional Bluetooth connectivity (Uconnect).

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first, under normal driving conditions. Severe driving conditions may require 3,000 mile intervals.

Transmission Fluid Change:

Every 60,000 miles (96,000 km) or 4 years, whichever comes first.

Coolant Change:

First change at 100,000 miles (160,000 km), then every 50,000 miles (80,000 km).

Spark Plugs V6:

70,000 - 100,000 miles (112,000 - 160,000 km), depending on plug type.

Spark Plugs V8:

100,000 miles (160,000 km) (for 4.7L V8 and 5.7L HEMI V8)

Engine Oil Type V6:

SAE 5W-20, API SN (or equivalent), Chrysler MS-6395

Engine Oil Type V8:

SAE 5W-20, API SN (or equivalent), Chrysler MS-6395 (5.7L HEMI may also specify SAE 5W-30)

Engine Oil Capacity V6:

5.0 US quarts (4.7 liters)

Engine Oil Capacity V8 47:

6.0 US quarts (5.7 liters)

Engine Oil Capacity Hemi:

7.0 US quarts (6.6 liters)

Coolant Type:

HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant, Chrysler MS-9769 (or equivalent)

Power Steering Fluid:

ATF+4 (Chrysler Material Number 05127382AB)

Brake Fluid:

DOT 3 or DOT 4 brake fluid

Common Issues List:

Early model years of the WK (including 2008) can experience issues with the Totally Integrated Power Module (TIPM), particularly concerning intermittent power loss to various accessories. Other reported issues include HVAC blend door actuator failures, ignition coil failures, and potential for rust on the rear quarter panels and rocker panels. HEMI engines can sometimes suffer from exhaust manifold leaks. The 45RFE transmission is generally robust, but fluid maintenance is critical.

📚 Vehicle History

Jeep Legacy:

Jeep's heritage is rooted in rugged, off-road capable vehicles, dating back to World War II. The Grand Cherokee brand, introduced in 1993, aimed to blend this capability with a more luxurious and comfortable experience.

Wk Generation:

The WK generation, produced from 2005 to 2010, represented a significant redesign for the Grand Cherokee, offering improved on-road manners, a more refined interior, and new powertrain options, including the highly praised HEMI V8.

Production Years Wk:

2005-2010

Assembly Location:

Jefferson North Assembly Plant, Detroit, Michigan, USA

🏆 Awards & Recognition

Award Example 1:

J.D. Power and Associates: Often ranked well for initial quality and dependability in its segment during its production run.

Award Example 2:

Car and Driver: Frequently included in comparison tests and lauded for its off-road prowess and HEMI V8 performance.

Award Example 3:

KBB.com: Received positive reviews for its towing capacity and comfortable ride.