🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Model Code:

WK

Product Name:

Jeep Grand Cherokee WK 2WD 4WD With 3.7L 4.7L 5.7L & 3.0L CRD Diesel Engine 2005-2008 Service Repair Workshop Manual

Year Range:

2005-2008

Drivetrain Options:

2WD, 4WD

Engine Codes:

3.7L V6, 4.7L V8, 5.7L V8 HEMI, 3.0L CRD Diesel

👋 Introduction

Segment:

Mid-size/Full-size Luxury SUV

Target Audience:

Families, off-road enthusiasts, towing users, general SUV buyers seeking comfort and capability.

Key Competitors 2005-2008:

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

Platform Basis:

WK platform, shared with Mercedes-Benz M-Class (W164) and R-Class during DaimlerChrysler era, offering robust construction and refined ride.

Engine Options:

Versatile engine lineup including efficient V6, strong V8, powerful HEMI V8, and torquey CRD diesel, catering to diverse performance and economy needs.

Capability:

Renowned Jeep off-road capability (especially with 4WD systems like Quadra-Trac II and Quadra-Drive II), strong towing capacity, comfortable on-road manners.

Interior:

Spacious and comfortable interior, offering premium materials and available luxury features, a significant upgrade from previous generations.

📋 Manual Details

Regions Covered:

Global (applicable to WK models with specified engines and drivetrains)

Estimated Page Count:

Extensive (typically 2000+ pages for a complete factory service manual covering these configurations)

Type:

Factory Service Manual / Workshop Manual / Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, rebuilding, cooling systems, lubrication systems, fuel delivery, emissions controls, cylinder head, block, crankshaft, pistons, connecting rods, camshafts, valves.

Engine Performance:

Ignition system, fuel injection system (MPI), turbocharger (for CRD diesel), engine control module (ECM) diagnostics, troubleshooting.

Transmission:

Automatic transmission (e.g., W5A580 for V8, NAG1 for CRD, 45RFE/545RFE for 3.7/4.7), manual transmission (if applicable), transfer case operation and repair, drive shafts, differentials, axle assemblies, gearbox and driveline components.

Brakes:

Hydraulic brake system, ABS, traction control, electronic stability program (ESP), parking brake, brake pads, rotors, calipers, master cylinder, brake lines, bleeding procedures.

Suspension And Steering:

Front and rear suspension (independent front suspension, multi-link rear), springs, shock absorbers, control arms, ball joints, bushings, power steering system, steering rack, tie rods, wheel alignment specifications.

Electrical System:

Battery, charging system (alternator), starting system (starter motor), lighting (headlights, taillights, interior), fuses, relays, wiring diagrams, multiplexed systems, body control module (BCM), power distribution.

HVAC:

Heating, ventilation, and air conditioning (HVAC) system, refrigerant recharge, compressor, condenser, evaporator, blower motor, climate control module, ducting.

Body And Chassis:

Body structure, panels, doors, windows, locks, interior trim, exterior trim, bumpers, underbody protection, corrosion protection.

Restraint Systems:

Airbag system, seat belts, SRS module, occupant restraint sensors.

Diagnostic Troubleshooting:

OBD-II diagnostic trouble codes (DTCs), symptom-based diagnostics, component testing, diagnostic tools and procedures.

Preventative Maintenance:

Scheduled maintenance intervals, fluid checks and changes, filter replacements, lubrication points.

Routine Repairs:

Brake pad replacement, fluid flushes, filter changes, belt replacement, spark plug replacement, bulb replacement.

Major Repairs:

Engine overhaul, transmission rebuild, suspension component replacement, steering system repair, brake system overhaul.

Electrical Diagnostics:

Troubleshooting wiring issues, component testing using multimeter and scope, interpreting wiring diagrams.

Bodywork And Trim:

Removal and installation of body panels, interior trim components, door hardware, glass replacement.

Depth:

Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts.

Diagnostic Tools:

Covers use of specialized diagnostic tools and procedures required for advanced system diagnostics.

Torque Specifications:

Includes precise torque values for all fasteners and critical components.

Clearances:

Provides specifications for all critical mechanical clearances (e.g., piston ring gap, bearing clearances).

Wiring Diagrams:

Detailed, high-resolution wiring schematics for all vehicle systems.

📊 Manual Specifications

Format:

PDF

Searchability:

Fully searchable text content for quick information retrieval.

Printability:

Printable pages allowing for physical reference.

Image Resolution:

High resolution, ensuring clarity of diagrams, illustrations, and text.

Type:

Digital (PDF)

Type:

N/A (Digital)

⚙️ Engine Specifications

Engine 3.7L V6:

3.7L SOHC V6 (PowerTech), Approx. 210-215 hp @ 5200 rpm, Approx. 235-245 lb-ft @ 4000 rpm. Known for reliability and decent fuel economy.

Engine 4.7L V8:

4.7L SOHC V8 (PowerTech), Approx. 235-255 hp @ 5000-5200 rpm, Approx. 290-325 lb-ft @ 3200-3500 rpm. Good balance of power and refinement.

Engine 5.7L V8 Hemi:

5.7L OHV V8 HEMI (Multi-Displacement System - MDS), Approx. 325-350 hp @ 5000-5200 rpm, Approx. 370-390 lb-ft @ 4000-4200 rpm. Offers significant power and improved fuel efficiency through cylinder deactivation.

Engine 3.0L Crd Diesel:

3.0L V6 CRD Turbo Diesel (Mercedes-Benz OM642), Approx. 215-224 hp @ 4000 rpm, Approx. 375-400 lb-ft @ 1600-2400 rpm. Excellent torque for towing and fuel economy, but requires specific diesel maintenance.

Horsepower Range:

210 hp to 350 hp (depending on engine)

Torque Range:

235 lb-ft to 400 lb-ft (depending on engine)

Gasoline Engines:

Electronic Multi-Point Fuel Injection (MPI)

Diesel Engine:

Common Rail Direct Injection (CRDI), Turbocharged

🔧 Transmission

Standard Transmission:

5-speed automatic transmission (e.g., 545RFE for 3.7/4.7, W5A580 for 5.7/3.0 CRD)

Optional Transmission:

N/A for this generation/model range as 5-speed automatic was standard across specified engines.

Transmission Features:

Electronic control, Selec-Trac (for 4WD systems), Tow/Haul mode, manual shift modes (AutoStick).

Transfer Case:

Available Quadra-Trac I, Quadra-Trac II (with low-range), and Quadra-Drive II (with electronic limited-slip differentials) for enhanced off-road capability and traction.

📐 Dimensions

Wheelbase:

Approx. 116.1 inches (2950 mm)

Length:

Approx. 189.8 inches (4820 mm)

Width:

Approx. 74.9 inches (1903 mm)

Height:

Approx. 69.4 inches (1763 mm)

Passenger Volume:

Approx. 105.4 cu ft (2984 L)

Cargo Volume Behind 2Nd Row:

Approx. 32.5 cu ft (920 L)

Cargo Volume Max:

Approx. 77.0 cu ft (2180 L)

Curb Weight Range:

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

Towing Capacity:

Up to 7,400 lbs (3357 kg) with proper equipment and engine configuration (typically 5.7L HEMI or 3.0L CRD)

🛡️ Safety Features

NHTSA Front Impact Driver:

5 Stars (for 2006-2007 models)

NHTSA Front Impact Passenger:

5 Stars (for 2006-2007 models)

NHTSA Side Impact Front Seat:

5 Stars (for 2006-2007 models)

NHTSA Side Impact Rear Seat:

5 Stars (for 2006-2007 models)

IIHS Frontal Offset:

Good (for 2006-2007 models)

IIHS Side Impact:

Good (for 2006-2007 models)

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (TCS), Electronic Stability Program (ESP), Hill Descent Control (HDC) on select models.

Passive Safety Features:

Advanced multi-stage front airbags, front side-impact airbags, available full-length side-curtain airbags, active head restraints, front and rear crumple zones.

💡 Technology Features

Infotainment Options:

Available premium audio systems (e.g., Boston Acoustics, Harman Kardon), Uconnect infotainment system with GPS navigation, satellite radio, auxiliary input jack.

Driver Assistance Features:

ParkSense parking assist, rear backup camera (optional), Bi-Xenon HID headlamps, rain-sensing wipers.

Connectivity Features:

Bluetooth streaming and hands-free calling (with Uconnect), remote start, power liftgate (optional).

🔧 Maintenance

Oil Change Interval:

Every 6,000 miles (9,600 km) or 6 months (whichever comes first) for gasoline engines, using synthetic blend oil. Diesel may differ slightly, consult manual.

Air Filter Replacement:

Every 15,000 miles (24,000 km) or as needed based on driving conditions.

Transmission Fluid Service:

Every 30,000-60,000 miles (48,000-96,000 km), depending on driving conditions (e.g., towing). Specific fluid type is critical.

Coolant Flush:

Every 30,000-100,000 miles (48,000-160,000 km) or 5 years, depending on coolant type. Check manual for specific type and interval.

Engine Oil Gasoline:

SAE 5W-20 or 5W-30 synthetic blend (check owner's manual for specific engine and temperature range requirements).

Engine Oil Diesel:

API CJ-4 or CK-4 specification, SAE 5W-40 or 15W-40 diesel engine oil (check owner's manual for precise specification).

Transmission Fluid:

ATF+4 (MS-9602) for gasoline engines. MB Spec 236.10 or equivalent for the W5A580 (5.7L HEMI and 3.0L CRD). CRD requires specific MB-spec fluid.

Coolant:

Mopar HOAT (Hybrid Organic Acid Technology) antifreeze, typically purple or pink. Check manual for specific type.

Common Problems 3.7L V6:

Valve spring issues, occasional head gasket leaks, spark plug ejection (early models), camshaft/lifter noise.

Common Problems 4.7L V8:

Head gasket failures (especially early designs), valve stem seal wear, occasional transmission issues (e.g., torque converter clutch).

Common Problems 5.7L Hemi:

Multi-Displacement System (MDS) issues (e.g., oil consumption, lifter noise), exhaust manifold cracks, occasional transmission issues.

Common Problems 3.0L Crd Diesel:

Diesel Particulate Filter (DPF) clogging, EGR valve issues, injector seal leaks, glow plug failures, turbocharger issues, potential for oil cooler leaks.

General Wk Issues:

Front suspension wear (ball joints, control arm bushings), power steering pump noise/leaks, HVAC blower motor failures, electronic module issues (e.g., TIPM), water intrusion in cabin (rear hatch seals).

📚 Vehicle History

Jeep Legacy:

Jeep's long history of rugged, capable off-road vehicles, established in 1941.

Grand Cherokee Wk Generation:

The WK generation (2005-2010) marked a significant shift towards a more car-like unibody construction (based on the Mercedes-Benz W164 platform), improving on-road comfort and refinement while retaining Jeep's signature capability. It replaced the WJ generation.

Engines Wk Generation:

The introduction of the 5.7L HEMI and the Mercedes-sourced 3.0L CRD diesel engines expanded the Grand Cherokee's appeal and performance envelope.

Production Period:

2005-2008 (for this specific manual coverage)

Manufacturing Locations:

Primarily assembled in Jefferson North Assembly Plant, Detroit, Michigan, USA.

🏆 Awards & Recognition

Kbb Best Full Size SUV:

Kelley Blue Book's Best Full-Size SUV for 2005.

Wards 10 Best Engines:

The 5.7L HEMI V8 was recognized by Ward's AutoWorld as one of its '10 Best Engines' in 2005.

Towing Award:

Consistently praised for its towing capability relative to its class.