🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

2006

Chassis Code:

WK

Generation:

Third Generation (WK)

Generation Years:

2005-2010

👋 Introduction

Market Position:

The 2006 Jeep Grand Cherokee WK represented a significant evolution for Jeep's flagship SUV, moving towards a more car-like unibody construction while retaining its off-road credentials. It competed in the mid-size to large SUV segment against rivals like the Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, and Nissan Pathfinder.

Competitive Advantages 2006:

Key advantages for the WK Grand Cherokee included its powerful HEMI V8 engine option, a refined interior for its class, and a reputation for robust 4x4 systems (Quadra-Trac II, Quadra-Drive II). Its unibody construction offered improved on-road manners compared to previous body-on-frame SUVs.

Key Features 2006 Wk:

Introduction of the redesigned WK platform, offering improved aerodynamics and a more modern interior. Availability of the 5.7L HEMI V8, a standard 3.7L V6, and optional 4.7L V8. Significant advancements in available technology and safety features.

📋 Manual Details

Primary Coverage Areas:

Lubrication & Maintenance, Suspension, Differential & Driveline, Brakes, Cooling, Audio/Video, Chime/Buzzer, Electronic Control Modules, Engine Systems, Heated Systems, Horn, Ignition Control, Instrument Cluster, Lamps, Message Systems, Power Systems, Restraints, Speed Control, Vehicle Theft Security, Wipers/Washers, Navigation/Telecommunication, Wiring, Engine, Exhaust System, Frame & Bumpers, Fuel System, Steering, Transmission and Transfer Case, Tires/Wheels, Body, Heating & Air Conditioning, Emissions Control

Manual Type:

Service and Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Systems:

Detailed coverage of gasoline engines including V8 HEMI (5.7L) and V6 (3.7L, 4.7L), focusing on engine mechanics, fuel delivery, ignition, emissions, cooling, lubrication, and exhaust systems. Includes component identification, removal/installation procedures, diagnostics, and repair specifications.

Transmission And Driveline:

Comprehensive coverage for automatic transmissions (e.g., 545RFE) and NV245, NV345, NP145, NP247, NP249 transfer cases. Includes diagnosis, repair, overhaul procedures, fluid specifications, and capacity. Differential and driveline components (axles, CV joints, driveshafts) are also detailed.

Brakes:

Detailed information on hydraulic and electronic brake systems, including ABS, EBD, and stability control. Covers brake component replacement (pads, rotors, calipers, lines), bleeding procedures, and diagnostic troubleshooting for hydraulic and electronic faults.

Suspension And Steering:

In-depth coverage of independent front suspension (IFS) and multi-link rear suspension. Includes procedures for suspension component inspection, replacement (shocks, struts, ball joints, bushings), alignment specifications, and steering system diagnostics (power steering, rack and pinion).

Electrical And Electronics:

Extensive coverage of the vehicle's electrical system, including battery, charging, starting, lighting, instruments, wipers, horn, power accessories, and various electronic control modules (ECMs, PCM, BCM). Includes detailed wiring diagrams, component locations, diagnostic procedures, and connector pinouts.

Body And Chassis:

Covers body panel repair, door mechanisms, glass, exterior trim, bumpers, frame straightening, and interior components. Includes HVAC system diagnosis and repair, heating elements, and cabin air filtration.

Maintenance Procedures:

Scheduled maintenance intervals for oil changes, filter replacements, fluid checks and changes (coolant, brake fluid, power steering fluid, transmission fluid, differential fluid), tire rotation, and general inspections.

Diagnostic Procedures:

Systematic troubleshooting guides for common and complex issues across all vehicle systems. Includes symptom-based diagnosis, DTC (Diagnostic Trouble Code) interpretation and resolution, and electrical system diagnostics using wiring diagrams and test equipment.

Repair And Overhaul:

Detailed step-by-step instructions for component removal, installation, and overhaul. Covers engine rebuild procedures, transmission service, brake system repairs, suspension component replacement, electrical component repair, and bodywork.

Technical Depth:

Comprehensive and in-depth, suitable for professional technicians and experienced DIY mechanics. Includes torque specifications, clearances, diagnostic flowcharts, wiring schematics, component testing procedures, and specifications for engine, transmission, suspension, brakes, and electrical systems.

📊 Manual Specifications

File Format:

PDF

Searchable Text:

Yes (typically for PDF downloads, enabling quick information retrieval)

Printability:

Printable (allows for printing of specific sections or the entire manual)

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Options 2006:

3.7L SOHC V6 (EER), 4.7L SOHC V8 (ENH/ENR), 5.7L OHV V8 HEMI (EZB)

3.7L V6 Performance:

Approx. 210-215 horsepower, 235-240 lb-ft torque (figures vary slightly by specific model year tuning)

4.7L V8 Performance:

Approx. 230-235 horsepower, 290-300 lb-ft torque

5.7L Hemi V8 Performance:

Approx. 330-335 horsepower, 375-380 lb-ft torque

Fuel System Type:

Sequential Multi-Port Fuel Injection (MPI)

Recommended Fuel:

87 Octane Unleaded (3.7L & 4.7L V8), 89 Octane Recommended for 5.7L HEMI (premium may be optional/recommended for optimal performance)

🔧 Transmission

Standard Transmission 2006:

5-speed automatic (e.g., W5A580 on some models, 545RFE on others, depending on engine and drivetrain)

Optional Transmission 2006:

N/A for 2006 (primarily automatic)

Transfer Case Options:

Quadra-Trac I (full-time 4WD), Quadra-Trac II (2-speed with electronic low range), Quadra-Drive II (Quadra-Trac II with electronic limited-slip differentials)

Automatic Transmission Fluid:

ATF+4 (Chrysler Material Standard MS-9602)

📐 Dimensions

Wheelbase:

Approx. 116.1 inches (2949 mm)

Length:

Approx. 186.6 inches (4740 mm)

Width:

Approx. 74.5 inches (1892 mm)

Height:

Approx. 67.4 inches (1712 mm)

Curb Weight:

Approx. 4,500 - 5,000 lbs (2041 - 2268 kg), depending on engine and drivetrain

Towing Capacity:

Up to 6,500 lbs (2948 kg), when properly equipped with towing package

🛡️ Safety Features

NHTSA Front Impact Rating 2006:

5 Stars (Driver and Passenger)

IIHS Front Impact Rating 2006:

Good

Active Safety Features:

Anti-lock Braking System (ABS), Electronic Brake Force Distribution (EBD), Brake Assist, Electronic Stability Program (ESP) with Roll Mitigation

Passive Safety Features:

Front driver and passenger airbags, front side-impact airbags, available side curtain airbags (front and second row), front seatbelt pretensioners

💡 Technology Features

Infotainment Systems Available 2006:

Available Boston Acoustics premium audio system, SIRIUS Satellite Radio, optional Uconnect Hands-Free Communication system, and optional Navigation System.

Driver Assistance Features:

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

Connectivity Features:

Uconnect system allowing Bluetooth hands-free calling, voice commands for audio system and phone (when equipped).

🔧 Maintenance

Oil Change Interval:

Every 5,000 - 7,500 miles or 6 months, whichever comes first, depending on driving conditions (severe vs. normal). Refer to owner's manual for specific recommendation.

Transmission Fluid Change Interval:

Every 30,000 - 60,000 miles, depending on driving conditions and transmission type. Manual recommends specific interval based on usage.

Engine Oil Specification:

SAE 5W-30 (preferred for most conditions), SAE 5W-20 for some 3.7L variants. Chrysler MS-6395 approved oil required.

Coolant Specification:

HOAT (Hybrid Organic Acid Technology) coolant, Mopar OAT (Orange) or equivalent meeting Chrysler MS-9769

Brake Fluid Specification:

DOT 3

Power Steering Fluid:

ATF+4 (Chrysler Material Standard MS-9602)

Common Wk Issues 2006:

Potential issues include HVAC blend door actuator failures, electronic throttle control (ETC) problems, noisy front suspension components (ball joints, control arm bushings), and some transmission solenoid issues. Water pump leaks can also occur on V8 engines.

Oil Filter Part Number Example:

Mopar MO-899 or equivalent (e.g., Wix 57899, Fram PH3500)

Engine Air Filter Part Number Example:

Mopar 52034421AA or equivalent (e.g., Wix 42442, Fram CA9900)

📚 Vehicle History

Jeep Heritage:

Jeep, a brand with deep roots in military vehicles, has consistently delivered SUVs known for their off-road capability and ruggedness since its inception during World War II. This heritage informs the Grand Cherokee's positioning as a premium SUV with genuine trail-rated potential.

Grand Cherokee Wk Evolution:

The WK generation, launched for the 2005 model year (as a 2005 model in some markets, but the manual specifically states 2006 WK), marked a significant shift from the WJ generation's traditional truck-based platform to a more modern unibody construction. This transition aimed to improve on-road refinement and fuel efficiency while retaining Jeep's SUV identity.

Wk Production Location:

Jefferson North Assembly Plant, Detroit, Michigan, USA

🏆 Awards & Recognition

Industry Recognitions Wk:

The WK Grand Cherokee generally received positive reviews for its improved on-road manners and powerful engine options, particularly the HEMI. It was often praised for its comfortable ride and capable off-road performance for its class. Specific awards vary by year and publication, but generally positioned as a strong contender in the premium SUV segment.