🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation Code:

WK

Model Years Covered:

2005-2010

👋 Introduction

Segment:

Mid-size luxury SUV / Premium SUV

Key Competitors:

Ford Explorer, Chevrolet Trailblazer, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery, BMW X5, Mercedes-Benz M-Class.

Vehicle Attributes:

Renowned off-road capability, comfortable ride, spacious interior, powerful engine options, available luxury features, towing capacity.

Benefits:

Empowers owners and technicians to perform maintenance, diagnose issues, and complete repairs, saving time and money compared to dealership services. Provides factory-accurate procedures and specifications.

📋 Manual Details

Engine Types:

3.7L V6, 4.7L V8, 5.7L V8 HEMI, 6.1L V8 SRT HEMI

Drivetrain Options:

4WD (Quadra-Trac I, Quadra-Trac II, Quadra-Drive II), RWD

Type:

Factory Service and Repair Workshop Manual

Language:

English

Format:

Digital Download (PDF)

Licensing:

No Expiry Dates, No Extra Fees

📖 Manual Coverage

Powertrain:

Engine mechanical, engine performance, fuel system, lubrication system, cooling system, exhaust system, ignition system, emission controls, transmission (automatic), transfer case, differentials.

Chassis:

Suspension (front and rear), steering system, brake system (front and rear discs, ABS, traction control), driveline components (axles, CV joints, driveshafts).

Body And Electrical:

Body structure, interior trim, exterior trim, doors, windows, mirrors, HVAC system, lighting, instrument cluster, audio system, power accessories (windows, locks, seats), chassis control modules, powertrain control modules, body control modules, wiring diagrams, diagnostic trouble codes (DTCs).

Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt replacement, brake pad/rotor replacement, tire rotation, battery testing.

Repair And Rebuild:

Engine overhaul, transmission overhaul, differential rebuilds, suspension component replacement, brake caliper overhaul, steering rack replacement, AC system service.

Diagnostics:

Symptom-based troubleshooting, diagnostic trouble code (DTC) interpretation, component testing, electrical system diagnostics, fuel system diagnostics, emissions testing procedures.

Level:

Comprehensive Factory Level - Covers everything from basic maintenance to complete engine and transmission rebuilds and advanced electrical diagnostics.

Electrical Schematics:

Detailed wiring diagrams for all major electrical systems, including engine control, body control, lighting, power accessories, chassis control modules, and diagnostic connectors.

Fastener Tightening:

Specific torque values for all critical fasteners, including engine components (head bolts, main bearings), suspension components, wheel lug nuts, and driveline assemblies.

DTC Lookup:

Comprehensive list of Diagnostic Trouble Codes (DTCs), their definitions, and likely causes and troubleshooting steps.

Wheel Bolt Pattern:

5x127mm (5x5 inches)

Wheel Offset:

Typically between +45mm to +50mm (verify for specific trim/wheels).

Tire Sizes:

Common sizes include P245/65R17, P245/60R18, P265/50R20. Specific sizes depend on trim level and wheel option.

📊 Manual Specifications

Type:

PDF (Portable Document Format)

Searchability:

Fully searchable text for quick information retrieval.

Scalability:

High resolution, suitable for printing individual pages or the entire document.

Format For Print:

Not applicable (digital download), but designed for organized printing.

Format For Print:

Not applicable (digital download), but contains information typically found in professionally printed manuals.

⚙️ Engine Specifications

Engine 1:

3.7L SOHC V6 (PowerTech)

Horsepower 3.7L:

Approx. 210-215 hp @ 5200 rpm

Torque 3.7L:

Approx. 235-240 lb-ft @ 4000 rpm

Engine 2:

4.7L SOHC V8 (PowerTech)

Horsepower 4.7L:

Approx. 230-235 hp @ 4500 rpm

Torque 4.7L:

Approx. 300-305 lb-ft @ 3200 rpm

Engine 3:

5.7L OHV V8 HEMI (HEMI)

Horsepower 5.7L:

Approx. 357-360 hp @ 5150 rpm

Torque 5.7L:

Approx. 389-390 lb-ft @ 4000 rpm

Engine 4:

6.1L OHV V8 SRT HEMI (SRT-8)

Horsepower 6.1L:

Approx. 420-425 hp @ 6000 rpm

Torque 6.1L:

Approx. 420-425 lb-ft @ 4800 rpm

Injection Type:

Sequential Multi-Port Fuel Injection (MPI)

Octane Rating:

87 Octane (3.7L, 4.7L), 91 Octane recommended for 5.7L HEMI, 91 Octane required for 6.1L SRT HEMI.

ECU System:

NGC (Next Generation Controller) or similar Chrysler/Dodge/Jeep ECU architectures.

🔧 Transmission

Auto Transmission Standard:

5-Speed Automatic (W5A580 - Mercedes-Benz sourced for some models, NAG1)

Auto Transmission Optional:

4-Speed Automatic (45RFE/48RE - older applications, less common in later WK)

Transfer Case Types:

Quadra-Trac I (Full-time 4WD), Quadra-Trac II (Full-time 4WD with low range), Quadra-Drive II (Full-time 4WD with Electronic Limited Slip Differentials).

Transmission Features:

Electronic shift control, driver-selectable modes (e.g., snow mode), Tow/Haul mode.

Transmission Fluid:

Mopar ATF+4 (MS-9602) or equivalent for 4-speed automatics. For 5-speed (W5A580/NAG1), typically requires specific ATF like Mopar NAG1 or equivalent (e.g., Pentosin ATF1).

📐 Dimensions

Wheelbase:

Approx. 116.1 inches (2950 mm)

Length:

Approx. 188.8 inches (4800 mm)

Width:

Approx. 74.4 inches (1890 mm)

Height:

Approx. 70.3 inches (1785 mm) (excluding roof rails)

Curb Weight:

Varies by engine and drivetrain, typically 4,500 - 5,000 lbs (2040 - 2270 kg)

Towing Capacity:

Up to 7,400 lbs (3350 kg) with appropriate factory tow package.

🛡️ Safety Features

NHTSA Frontal Crash:

5-Star (Driver and Passenger)

NHTSA Side Impact:

5-Star (Front and Rear Passengers)

IIHS Rollover Resistance:

Not Rated (but generally considered good due to stability and 4WD systems)

Traction Control:

Standard Electronic Traction Control (ETC) on all models. Advanced systems available with Quadra-Trac II and Quadra-Drive II.

Electronic Stability:

Standard Electronic Stability Control (ESC) / All-Speed Traction Control.

Brake Assist:

Available, works with ABS to improve braking performance in emergencies.

Airbags:

Frontal airbags (driver and passenger), side curtain airbags (front and rear), available front seat-mounted side airbags.

Seatbelts:

3-point seatbelts with pretensioners for all seating positions.

💡 Technology Features

Audio Systems:

Available Boston Acoustics premium audio system, Uconnect infotainment system with navigation and voice control (optional on higher trims).

Connectivity:

Optional SiriusXM Satellite Radio, auxiliary audio input, Bluetooth connectivity (Uconnect).

Parking Assist:

Available ParkSense front and rear park assist sensors.

Camera Systems:

No factory backup camera available during this generation's primary production run; aftermarket solutions are common.

🔧 Maintenance

Oil Change Interval:

Typically 5,000 - 7,500 miles (8,000 - 12,000 km) or 6-12 months, depending on driving conditions and oil type used (synthetic recommended).

Engine Air Filter:

Inspect every 15,000 miles (24,000 km), replace as needed (e.g., every 30,000 miles or sooner if dirty).

Cabin Air Filter:

Inspect and replace every 15,000 - 30,000 miles (24,000 - 48,000 km).

Spark Plugs:

3.7L V6: Approximately 100,000 miles (160,000 km) (use recommended iridium plugs). 4.7L/5.7L V8: Approximately 100,000 miles (160,000 km) (use recommended iridium plugs).

Transmission Fluid Change:

Check manufacturer recommendation, often around 50,000 - 100,000 miles (80,000 - 160,000 km) for severe usage, or as indicated by maintenance schedule. Filter replacement recommended with fluid change.

Engine Oil:

SAE 5W-20 (preferred for fuel economy, especially 3.7L and 4.7L) or SAE 5W-30 for 5.7L/6.1L HEMI, API certified. Consult manual for specific viscosity based on ambient temperature.

Coolant:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, 5/100 (Orange) or equivalent HOAT (Hybrid Organic Additive Technology).

Brake Fluid:

DOT 3 or DOT 4 (check specific reservoir cap or manual). Fluid should be replaced every 2-3 years.

Power Steering Fluid:

Mopar Power Steering Fluid or equivalent ATF+4 (consult manual).

Common Problems Wk:

Water pump leaks (especially on V8s), front suspension component wear (ball joints, control arms), rear differential pinion seal leaks, HVAC blend door actuator failures, minor electrical gremlins, transmission thermal degradation (if not maintained).

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for ruggedness, off-road prowess, and durable SUVs dating back to its military origins in WWII.

Wk Generation:

The WK generation (2005-2010) represented a significant redesign and modernization for the Grand Cherokee, moving to a unibody platform and incorporating more car-like ride comfort and luxury features, while retaining strong Jeep DNA.

Assembly Locations:

Jefferson North Assembly Plant, Detroit, Michigan, USA.

Model Run:

Introduced for the 2005 model year, succeeding the WJ generation.

🏆 Awards & Recognition

Car And Driver Best:

Often praised for its blend of luxury, performance (especially HEMI models), and off-road capability. Could be featured in '10Best Trucks' lists by automotive publications.

Jdp Power Performance:

Varies by year and specific model, generally positioned as a strong contender in the premium SUV segment.