🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Model Generation:

WK

Model Years Covered:

2005, 2006, 2007, 2008

Chassis Code:

WK

👋 Introduction

Segment:

Mid-size Luxury SUV

Target Audience:

Families, individuals seeking a capable, comfortable, and luxurious SUV with off-road potential.

Key Competitors:

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

Platform:

Chrysler WK platform, a unibody construction shared with some Mercedes-Benz SUVs (e.g., W164 M-Class).

Design Philosophy:

Balanced blend of on-road refinement and traditional Jeep off-road capability, offering a more car-like driving experience than previous generations while retaining robust 4x4 systems.

Distinctive Elements:

Iconic seven-slot grille, trapezoidal wheel arches, refined interior appointments, available HEMI V8 engines, advanced four-wheel-drive systems.

📋 Manual Details

Engine Variants Covered:

3.7L V6 (PowerTech), 4.7L V8 (PowerTech), 5.7L V8 HEMI (Multi-Displacement System), 6.1L V8 HEMI SRT

Transmission Variants Covered:

5-speed Automatic (W5A580, 545RFE), 5-speed Automatic (NAG1 for SRT)

Drivetrain Variants Covered:

4x2 RWD, 4x4 (Quadra-Trac I, Quadra-Trac II, Quadra-Drive II)

Estimated Page Count:

Approx. 2000-3000 (multi-volume set or comprehensive digital compilation)

Manual Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Powertrain:

Engine mechanical (disassembly, assembly, overhaul), fuel system, ignition system, cooling system, exhaust system, engine control systems (PCM/ECU diagnosis and programming), transmission mechanicals and hydraulics, transfer case, drive shafts, differentials.

Chassis:

Suspension (front and rear independent), steering system (hydraulic power steering), braking system (front and rear disc, ABS, ESP, brake assist), wheels and tires.

Electrical:

Battery, charging system, starting system, lighting (headlamps, taillamps, interior), instrument cluster, body control module (BCM), power windows, power locks, mirrors, wipers, horn, trailer tow wiring, audio systems, climate control electronics, navigation system.

Body And Trim:

Exterior body panels, doors, hood, tailgate, bumpers, interior trim, seats, airbags, seat belts, sunroof, glass replacement, weatherstripping.

HVAC:

Air conditioning system (refrigerant cycle, compressor, condenser, evaporator), heating system (heater core, blower motor), climate control operation and diagnosis.

Maintenance:

Routine checks, fluid changes (oil, coolant, brake fluid, power steering fluid, transmission fluid, differential fluid), filter replacements (oil, air, fuel, cabin), spark plug replacement, belt replacement, battery maintenance.

Repair And Overhaul:

Engine rebuild procedures, cylinder head removal/installation, piston and connecting rod service, crankshaft service, transmission overhaul and component replacement, differential rebuild, brake caliper and rotor replacement, suspension component replacement (ball joints, control arms, shocks/struts), steering gear service, power steering pump replacement, AC system servicing, starter motor and alternator replacement.

Diagnostics And Troubleshooting:

Symptom-based troubleshooting guides, diagnostic trouble code (DTC) interpretation and resolution, electrical circuit testing, fuel pressure testing, compression testing, leak down testing, scan tool usage for diagnosis.

Special Tools And Equipment:

Identification and usage of specialized tools required for specific repair procedures (e.g., torque wrenches, engine timing tools, AC manifold gauges, diagnostic scan tools).

Depth Of Information:

Comprehensive, from basic maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures and wiring diagrams.

📊 Manual Specifications

File Format Details:

Searchable PDF files with high-resolution diagrams and schematics. Ability to print specific pages or the entire manual.

Print Quality Notes:

Designed for clarity with crisp text and clear, detailed illustrations, diagrams, and photographs.

Binding Type Notes:

N/A (Digital Format)

Paper Type Notes:

N/A (Digital Format)

⚙️ Engine Specifications

Engine 3.7L:

3.7L SOHC V6 (PowerTech), Displacement: 3701 cc, Bore x Stroke: 93.0 mm x 90.9 mm, Compression Ratio: 9.6:1, Horsepower: 210-215 hp @ 5200-5500 rpm, Torque: 235-240 lb-ft @ 4000 rpm, Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI).

Engine 4.7L:

4.7L SOHC V8 (PowerTech), Displacement: 4701 cc, Bore x Stroke: 93.0 mm x 86.0 mm, Compression Ratio: 9.0:1, Horsepower: 230-235 hp @ 4500 rpm, Torque: 300-305 lb-ft @ 3200-3300 rpm, Fuel Delivery: Sequential MPI.

Engine 5.7L:

5.7L OHV V8 HEMI (Multi-Displacement System - MDS), Displacement: 5654 cc, Bore x Stroke: 99.5 mm x 90.9 mm, Compression Ratio: 9.6:1, Horsepower: 330-360 hp @ 5000-5200 rpm, Torque: 370-390 lb-ft @ 4000-4400 rpm, Fuel Delivery: Sequential MPI with MDS.

Engine 6.1L:

6.1L OHV V8 HEMI SRT, Displacement: 6059 cc, Bore x Stroke: 100.1 mm x 94.6 mm, Compression Ratio: 10.3:1, Horsepower: 415-420 hp @ 6000-6200 rpm, Torque: 410-420 lb-ft @ 4800-5000 rpm, Fuel Delivery: Sequential MPI.

Acceleration 0 60 Mph 5.7L:

Approx. 7.0-7.5 seconds (Varies with configuration and driver).

Towing Capacity:

Up to 7,500 lbs (with proper equipment, varies by engine and drivetrain).

Fuel Type:

Unleaded gasoline (Premium recommended for 5.7L and 6.1L HEMI engines).

Fuel Tank Capacity:

20.5 gallons (77.6 liters)

🔧 Transmission

Standard Transmission Type:

5-Speed Automatic (545RFE for 3.7L/4.7L V8, W5A580 for 5.7L HEMI)

Optional Transmission Type:

5-Speed Automatic (NAG1 - W5A580) for 6.1L HEMI SRT

Transmission Features:

Electronic control, Selectable Shift Automatic (AutoStick), Tow/Haul mode (on some models).

Transmission Fluid Type:

ATF+4 (MS-9602) for 545RFE/W5A580. Consult manual for specific fluid for NAG1.

Transmission Fluid Capacity:

Approx. 6.7-10.5 quarts (6.4-9.9 liters) for 545RFE/W5A580 (fill depends on torque converter and cooler).

📐 Dimensions

Length:

189.8 inches (4,821 mm)

Width:

74.9 inches (1,902 mm)

Height:

69.9 inches (1,775 mm) (Varies with 4x4)

Wheelbase:

116.1 inches (2,950 mm)

Ground Clearance:

Approx. 8.1-8.7 inches (206-221 mm) (Varies with 4x4 system and tires).

Passenger Volume:

Approx. 105.4 cubic feet (2,985 liters)

Cargo Volume Behind 2Nd Row:

Approx. 31.5 cubic feet (892 liters)

Cargo Volume Max:

Approx. 68.5 cubic feet (1,939 liters)

Curb Weight:

Approx. 4,500 - 5,000 lbs (2,041 - 2,268 kg) (Varies significantly by engine and drivetrain).

Gross Vehicle Weight Rating Gvw:

Approx. 6,300 - 6,500 lbs (2,858 - 2,948 kg).

🛡️ Safety Features

NHTSA Frontal Crash Rating Driver:

5 Stars (for models with side curtain airbags)

NHTSA Frontal Crash Rating Passenger:

5 Stars (for models with side curtain airbags)

IIHS Front Offset Crash Rating:

Good (for models equipped with side airbags)

Active Safety Features:

Anti-lock Braking System (ABS), Electronic Stability Program (ESP) with Roll Mitigation, Traction Control System (TCS), Brake Assist (BAS), Trailer Sway Control (TSC).

Passive Safety Features:

Advanced multi-stage front airbags, front-seat side-impact airbags, available full-length side curtain airbags, active head restraints, pretensioner seatbelts.

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for Children) system.

💡 Technology Features

Infotainment System Options:

Available SiriusXM Satellite Radio, premium Boston Acoustics audio system, Uconnect hands-free communication system (Bluetooth), Navigation system, DVD entertainment system.

Driver Assistance Features:

ParkSense rear park assist, ParkView rear backup camera (late models).

Connectivity Features:

Uconnect hands-free communication, USB port (on some models), auxiliary audio input.

Comfort Features:

Power adjustable pedals, heated and ventilated front seats, dual-zone automatic climate control, remote start.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first (using synthetic oil).

Air Filter Replacement Interval:

Every 30,000 miles (48,000 km) or as needed based on driving conditions.

Cabin Air Filter Replacement Interval:

Every 15,000 miles (24,000 km) or annually.

Coolant Flush Interval:

Every 100,000 miles (160,000 km) or 10 years (using Mopar OAT coolant).

Transmission Fluid Change Interval:

Every 60,000 miles (96,000 km) or 4 years (under normal driving conditions). Every 30,000 miles (48,000 km) or 2 years (under severe driving conditions, e.g., towing, off-roading).

Engine Oil Specification:

SAE 5W-20, API SN certified (Synthetic recommended for all engines).

Engine Coolant Specification:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, P/N 68050350AA (Orange) or equivalent.

Brake Fluid Specification:

DOT 3 or DOT 4 (refer to cap/reservoir for exact spec).

Power Steering Fluid Specification:

Mopar Power Steering Fluid, P/N 05142891AA or equivalent.

Common Problems Wk:

Minor electrical gremlins (e.g., power window switches, interior lights), potential for HVAC blower motor resistor failure, occasional catalytic converter issues (especially on higher mileage vehicles), rear differential seal leaks, sometimes water pump issues on V8 engines. Some early models experienced accessory drive belt tensioner issues.

Hemi Mds Issues:

The Multi-Displacement System (MDS) can sometimes lead to lifter noise or premature wear if not maintained properly, though issues are not universal.

Transmission Issues:

While generally robust, the 545RFE and W5A580 transmissions can experience issues with solenoid packs or valve bodies if fluid and filter maintenance is neglected.

📚 Vehicle History

Jeep Legacy:

Jeep has a long and storied history in off-road vehicles, dating back to its military origins in World War II. The Grand Cherokee nameplate, introduced in 1993, signified Jeep's move into the premium SUV segment, offering more comfort and refinement than its Wrangler sibling.

First Generation Zj:

The original ZJ (1993-1998) established the Grand Cherokee as a luxury-oriented SUV with optional 4x4. The second-generation WJ (1999-2004) refined the platform and introduced more powerful engines. The WK generation represents a significant step forward in refinement and technology.

Production Years Wk:

2005-2010

Manufacturing Locations:

Jefferson North Assembly Plant, Detroit, Michigan, USA.

🏆 Awards & Recognition

Past Awards General:

While specific awards for the 2005-2008 model year are not as prominent as some newer vehicles, the Grand Cherokee consistently ranked well in its segment for capability and luxury, and was a popular choice for those seeking a balance of on-road comfort and off-road prowess.

Jeep Brand Recognition:

Jeep as a brand is synonymous with off-road capability and adventure, holding significant equity with consumers seeking ruggedness and versatility.

Safety Certifications:

Meeting all relevant U.S. Federal Motor Vehicle Safety Standards (FMVSS) for its model years.