Jeep Grand Cherokee WK 2008 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Model Code: WK Year: 2008 Codes Platform: WK 👋 Introduction Market Position Segment: Mid-size Luxury SUV Positioning: Premium off-road capable SUV...

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Mots clés: 2008 Car Cars Featured Grand Cherokee Grand Cherokee WK Jeep

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Description

🏷️ Basic Information

Identification

Make:

Model:

Grand Cherokee

Model Code:

Year:

Codes

Platform:

👋 Introduction

Market Position

Segment:

Mid-size Luxury SUV

Positioning:

Premium off-road capable SUV with comfortable on-road manners

Competitive Analysis

Competitors:

Ford Explorer, Toyota 4Runner, Nissan Pathfinder, Chevrolet TrailBlazer, Land Rover LR3

Key Features

Platform Basis:

Shared platform with Mercedes-Benz M-Class (W164)

Off Road Capability:

Quadra-Trac II or Quadra-Drive II 4WD systems, available Hill Descent Control

Powertrain Options:

Range of V6 and V8 HEMI engines

Interior Appointments:

Premium materials, available leather, advanced technology features

📋 Manual Details

Coverage Areas

Coverage Scope:

Comprehensive repair and service information

Page Count

Estimated Pages:

Approximately 2000+ pages (typical for factory service manuals of this era)

Manual Type

Type:

Factory Service Repair Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, disassembly, inspection, repair procedures for all available engines

Engine Performance:

Fuel system, ignition system, emissions control, cooling system, lubrication system

Transmission Mechanical:

Automatic transmission (e.g., W5A580/NAG1) service, repair, and overhaul

Drivetrain:

Transfer case, differentials (front and rear), drive shafts, CV joints

Suspension:

Front and rear suspension components, springs, shock absorbers, control arms, ball joints, bushings

Steering:

Steering gear, power steering pump, steering column, linkages

Brakes:

Front and rear brake systems, calipers, rotors, pads, ABS, ESP/ESC components

Electrical System:

Charging system, starting system, battery, lighting, fuses, relays

Electronics Control Modules:

ECU, TCU, BCM, ABS module diagnostics and repair

Body And Chassis:

Body construction, panels, doors, windows, locks, interior trim

HVAC:

Heating, ventilation, and air conditioning system diagnosis and repair

Restraints:

Airbag system, seat belts, SRS module

Infotainment:

Radio, navigation, audio system troubleshooting

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks

Troubleshooting:

Diagnostic flowcharts, symptom-based troubleshooting guides

Repair:

Component removal, installation, disassembly, and reassembly procedures

Diagnostics:

OBD-II diagnostics, trouble code explanations, sensor testing

Wiring Diagrams:

Complete electrical schematics for all systems

Specifications:

Torque specifications, fluid capacities, clearances, tolerances

Special Tools:

Identification and usage of specialized service tools

Technical Depth

Depth:

Complete factory-level repair and diagnostic information

📊 Manual Specifications

File Format

Searchable:

Yes, text-searchable PDF

Printable:

Yes, printable pages

Print Quality

Image Resolution:

High-resolution for clarity of diagrams and text

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine 1 Code:

3.7L V6 (PowerTech)

Engine 1 Displacement:

3.7 liters (226 cubic inches)

Engine 1 Horsepower:

210 hp @ 5200 rpm

Engine 1 Torque:

235 lb-ft @ 4000 rpm

Engine 2 Code:

4.7L V8 (High Output Magnum)

Engine 2 Displacement:

4.7 liters (287 cubic inches)

Engine 2 Horsepower:

231 hp @ 4500 rpm

Engine 2 Torque:

290 lb-ft @ 3500 rpm

Engine 3 Code:

5.7L V8 HEMI (ESF)

Engine 3 Displacement:

5.7 liters (345 cubic inches)

Engine 3 Horsepower:

357 hp @ 5000 rpm

Engine 3 Torque:

390 lb-ft @ 4000 rpm

Performance

Performance Features:

Variable Valve Timing (VVT) on 3.7L and 5.7L, MDS (Multi-Displacement System) on 5.7L HEMI

Fuel System

Fuel Delivery:

Multi-port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline (Premium recommended for HEMI for optimal performance)

🔧 Transmission

Standard

Transmission Type V6 V8 4.7L:

5-speed automatic (545RFE)

Transmission Type V8 5.7L:

5-speed automatic (W5A580 / NAG1 - Mercedes-Benz sourced)

Optional

Optional Transmissions:

N/A (all engines paired with specific automatics)

Features

Transmission Features:

Electronic range selection, Selec-Trac (on some models for 4WD selection), Hill Start Assist (with specific 4WD systems)

📐 Dimensions

Exterior

Length:

189.8 inches (4821 mm)

Width:

74.8 inches (1899 mm)

Height:

69.6 inches (1768 mm)

Wheelbase:

114.8 inches (2916 mm)

Interior

Passenger Volume:

105.4 cu ft (2985 L)

Cargo

Cargo Volume Behind 2Nd Row:

35.1 cu ft (994 L)

Cargo Volume With 2Nd Row Folded:

77.0 cu ft (2181 L)

Weights

Curb Weight Min:

4546 lbs (2062 kg) (for 3.7L 2WD)

Curb Weight Max:

4938 lbs (2240 kg) (for 5.7L 4WD)

Towing Capacity Max:

Up to 7,400 lbs (3357 kg) (with optional towing package)

Payload Capacity Max:

Approx. 1000-1200 lbs (454-544 kg) depending on configuration

🛡️ Safety Features

Ratings

NHTSA Frontal Driver Rating:

5 Stars

NHTSA Frontal Passenger Rating:

5 Stars

NHTSA Side Driver Rating:

5 Stars

NHTSA Side Rear Passenger Rating:

5 Stars

IIHS Roof Strength Rating:

Active Features

Electronic Stability Control:

Standard (ESP/ESC)

Antilock Brakes:

Standard (4-wheel disc ABS)

Traction Control:

Standard (TCS)

Hill Start Assist:

Available with certain 4WD systems

Passive Features

Airbags:

Front airbags, front side-impact airbags, available full-length side-curtain airbags

Seat Belts:

Pretensioner seat belts, rear LATCH child seat anchors

💡 Technology Features

Infotainment

Infotainment System:

Optional Uconnect Navigation system with CD/DVD/MP3 player, satellite radio, and Bluetooth connectivity

Display Type:

6.5-inch touchscreen (on navigation equipped models)

Driver Assistance

Parking Assist:

Available rear park assist system

Camera System:

Available rear backup camera

Connectivity

Connectivity Options:

Bluetooth hands-free calling, USB input (on later models/upgrades)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 6,000 miles or 6 months (under normal driving conditions)

Engine Air Filter Replacement:

Every 30,000 miles or 30 months

Cabin Air Filter Replacement:

Every 15,000 miles or 15 months

Spark Plug Replacement 3.7L:

Every 100,000 miles (Long-Life Platinum)

Spark Plug Replacement 5.7L:

Every 100,000 miles (Long-Life Platinum)

Transmission Fluid Change 545Rfe:

Every 60,000 miles (ATF+4)

Transmission Fluid Change W5A580:

Every 60,000 miles (MB 236.10 spec fluid)

Fluid Specifications

Engine Oil 3.7L 4.7L:

SAE 5W-30, API SN/SM or Chrysler MS-6395

Engine Oil 5.7L:

SAE 5W-20, API SN/SM or Chrysler MS-6395 (MDS engines)

Engine Coolant:

OAT (Organic Additive Technology) HOAT Antifreeze/Coolant, Mopar OAT 5 Year/100,000 Mile Formula (Purple)

Brake Fluid:

DOT 3

Power Steering Fluid:

Chrysler Power Steering Fluid (MS-5901) or equivalent

Transfer Case Fluid:

Mopar NV245 / NV247 / NV248 Transfer Case Fluid or Mopar ATF+4

Differential Fluid:

API GL-5, SAE 75W-90 (Front and Rear)

Known Issues

Common Issue Evap System:

EVAP system leaks, often related to charcoal canister or vent solenoid

Common Issue Suspension:

Worn front control arm bushings, ball joints, and tie rod ends leading to steering looseness or clunks

Common Issue Electronics:

Various electronic gremlins, often related to CAN bus communication or specific modules like the BCM

Common Issue HVAC:

Blend door actuator failures causing improper temperature control or air direction

Common Issue Hemi Mds:

MDS solenoid failure or lifter issues on the 5.7L HEMI, can lead to rough running or misfires

📚 Vehicle History

Brand Heritage

Brand Focus:

Jeep's legacy of robust off-road vehicles and capable SUVs

Model Evolution

Wk Generation Intro:

Introduced for the 2005 model year, representing a significant redesign from the previous WJ generation

Wk Updates 2008:

Received powertrain updates, including the new 5.7L HEMI and refined 3.7L V6. Improved interior materials and available technology.

Production

Production Location:

Jefferson North Assembly, Detroit, Michigan, USA

Production Years Wk:

2005-2010

🏆 Awards & Recognition

Recognitions

Auto Ratings 2008:

KBB.com's "Most Refined" SUV title for 2008

Safety Awards 2008:

IIHS Top Safety Pick for 2008 (contributed by its strong crash test performance)