🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Model Code:

WK

Year:

2008

👋 Introduction

Segment:

Mid-size/Full-size Luxury SUV

Target Audience:

Consumers seeking a capable, comfortable, and well-equipped SUV, often with off-road aspirations.

Key Competitors:

Ford Explorer, Toyota 4Runner, Nissan Pathfinder, Chevrolet Trailblazer, Land Rover LR3/LR4, BMW X5, Mercedes-Benz ML-Class.

Off Road Capability:

Renowned Jeep off-road prowess, typically featuring Quadra-Trac II or Quadra-Drive II 4WD systems, Selec-Terrain (though Selec-Terrain was more prominent in later WK2 generations, the 2008 WK had advanced 4WD options).

Interior Comfort:

Luxurious and spacious interior with premium materials, comfortable seating, and advanced amenities for its time.

Towing Capacity:

Strong towing capabilities, a hallmark of the Grand Cherokee.

Engine Options:

Offered with robust V6 and V8 engine choices, providing ample power.

📋 Manual Details

Coverage Type:

Parts Catalog

Estimated Pages:

High Volume (typical for parts catalogs of this era, likely 1000+ pages)

Type:

Parts Catalog

Language:

English

Format:

Digital (likely PDF or similar electronic format)

📖 Manual Coverage

Engine Components:

Detailed breakdown of all engine parts, including block, cylinder head, pistons, crankshaft, camshafts, valvetrain, intake, exhaust, cooling, and lubrication systems.

Transmission Components:

Comprehensive listing for automatic transmissions (e.g., NAG1/W5A580, 42RLE), including internal gears, clutches, torque converter, valve body, and external linkages/controls.

Drivetrain Components:

All parts for 4WD and AWD systems, including transfer case, differentials (front and rear), axles, CV joints, and driveshafts.

Suspension And Steering:

Components for front and rear suspension, including control arms, ball joints, bushings, springs, shock absorbers, steering gear, tie rods, and power steering components.

Braking System:

Parts for front and rear brakes (disc/disc), including calipers, rotors, pads, master cylinder, brake lines, parking brake components, and ABS system parts.

Electrical System:

Components of the electrical system, including starter, alternator, battery, ignition system parts, lighting (headlamps, taillamps, interior), wiring harnesses, fuses, relays, and sensors.

Fuel System:

Parts for fuel delivery, including fuel tank, fuel pump, fuel injectors, fuel filter, fuel lines, and evaporative emission control (EVAP) system components.

Exhaust System:

Components of the exhaust system, including manifold, catalytic converter, muffler, tailpipe, and hangers.

Cooling System:

Parts for the cooling system, including radiator, water pump, thermostat, hoses, and fan assembly.

HVAC System:

Components for heating, ventilation, and air conditioning, including compressor, condenser, evaporator, heater core, blower motor, and controls.

Body And Chassis:

External body panels (hood, fenders, doors, bumpers, liftgate), interior trim, glass, seals, body mounts, frame components, and associated hardware.

Wheels And Tires:

Information on wheel types, tire sizes, and related components.

Part Identification:

Primary function is precise identification of genuine Jeep parts via exploded diagrams and part numbers.

Part Ordering:

Facilitates accurate part ordering for repair and maintenance.

Vin Correlation:

Designed to allow correlation of specific parts to a vehicle's VIN for exact fitment.

Detail Level:

Highly detailed, with specific part numbers, descriptions, and exploded views for every component.

Application Scope:

Covers all factory-offered parts for the 2008 Jeep Grand Cherokee WK, including variations based on engine, drivetrain, and trim level.

📊 Manual Specifications

Format:

PDF (Portable Document Format) is the most common and practical format for extensive parts catalogs.

Searchability:

Likely includes OCR (Optical Character Recognition) for searchable text, allowing users to find part numbers or descriptions quickly.

Diagram Resolution:

High-resolution diagrams essential for clear identification of small components and assembly sequences.

Text Clarity:

Crisp and clear text for part numbers, descriptions, and quantities.

Binding:

N/A (for digital format)

Paper Quality:

N/A (for digital format)

⚙️ Engine Specifications

Engine Code And Displacement:

3.7L V6 (PowerTech) SOHC

Horsepower Hp:

Approx. 210-215 hp @ 5200 rpm

Torque Lb Ft:

Approx. 235-240 lb-ft @ 4000 rpm

Fuel Induction:

Multi-point Fuel Injection (MPI)

Engine Block Material:

Cast Iron

Cylinder Head Material:

Aluminum

Bore X Stroke:

3.78 in x 3.34 in (96 mm x 85 mm)

Compression Ratio:

9.7:1

Fuel Type:

Unleaded Gasoline (87 octane recommended)

Engine Code And Displacement:

4.7L V8 (EVS)

Horsepower Hp:

Approx. 230-235 hp @ 4500 rpm

Torque Lb Ft:

Approx. 300-305 lb-ft @ 3200 rpm

Fuel Induction:

Multi-point Fuel Injection (MPI)

Engine Block Material:

Cast Iron

Cylinder Head Material:

Aluminum

Engine Code And Displacement:

5.7L V8 HEMI (EZH)

Horsepower Hp:

Approx. 357-360 hp @ 5150 rpm

Torque Lb Ft:

Approx. 389-395 lb-ft @ 4000 rpm

Fuel Induction:

Multi-point Fuel Injection (MPI)

Engine Block Material:

Cast Iron

Cylinder Head Material:

Aluminum

Cylinders:

8 (V-configuration)

Valvetrain:

OHV (Overhead Valve) with HEMI 3-valves per cylinder (2 intake, 1 exhaust)

🔧 Transmission

Transmission Type:

5-speed automatic (W5A580 - Mercedes-Benz origin, also known as NAG1)

Standard On Engines:

Typically paired with the 5.7L HEMI V8, sometimes optional on others.

Transmission Type:

4-speed automatic (42RLE)

Optional On Engines:

Commonly paired with the 3.7L V6 and 3.7L V8 engines.

Drivetrain Options:

Available in 4x2 (RWD) and 4x4 configurations (Quadra-Trac II, Quadra-Drive II).

Gear Ratios:

Specific ratios vary by transmission, but the parts catalog will detail each individual gear and component.

Transmission Fluid Type:

Refer to specific transmission type. NAG1 typically uses ATF+4 or equivalent specified fluid. 42RLE also uses ATF+4 or equivalent.

📐 Dimensions

Length:

Approx. 189.8 inches (4821 mm)

Width:

Approx. 74.8 inches (1899 mm)

Height:

Approx. 68.0 inches (1727 mm)

Wheelbase:

Approx. 114.8 inches (2916 mm)

Ground Clearance:

Variable depending on suspension and 4x4 system, typically around 8.1 inches (206 mm).

Wheel Bolt Pattern:

5x127mm (5x5 inch)

Tire Sizes:

Common sizes include P245/65R17, P245/60R18, P265/60R18, P265/50R20 (depending on trim and options).

Curb Weight:

Approx. 4,400 - 5,000 lbs (2000 - 2270 kg), varies by engine and drivetrain.

Gross Vehicle Weight Rating Gvwr:

Approx. 6,200 - 6,500 lbs (2812 - 2948 kg)

Towing Capacity:

Up to 7,450 lbs (3,379 kg) with appropriate towing package and V8 engine.

Cargo Volume Behind 3Rd Row:

N/A (typically a 2-row SUV for this generation, some markets might have had a rare 3rd row option but it wasn't standard).

Cargo Volume Behind 2Nd Row:

Approx. 35.5 cubic feet (1005 liters)

Cargo Volume With 2Nd Row Folded:

Approx. 68.5 cubic feet (1940 liters)

🛡️ Safety Features

NHTSA Front Driver Crash Test:

Good (for its era)

NHTSA Front Passenger Crash Test:

Good (for its era)

NHTSA Side Driver Crash Test:

Good (for its era)

NHTSA Side Rear Passenger Crash Test:

Good (for its era)

NHTSA Rollover Resistance:

3-star (4WD), 4-star (2WD) (Risk of Rollover)

ABS:

Standard 4-wheel Anti-lock Braking System (ABS)

Traction Control:

Standard Electronic Traction Control (ETC) and available Electronic Stability Control (ESC).

All Wheel Drive:

Optional Quadra-Trac II and Quadra-Drive II systems provide enhanced traction.

Airbags:

Standard front airbags, optional front side airbags, available full-length side curtain airbags.

Seatbelts:

Three-point seatbelts with pretensioners for all seating positions.

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for CHildren) system.

💡 Technology Features

Audio System:

Available Boston Acoustics premium audio system, SiriusXM Satellite Radio, AM/FM radio, CD player (single or multi-disc), and MP3 playback.

Navigation System:

Optional GPS navigation system with touch-screen interface.

Climate Control:

Available dual-zone automatic climate control.

Parking Sensors:

Available rear park assist sensors.

Backup Camera:

Optional rearview camera system.

Tire Pressure Monitoring System:

Standard TPMS.

Bluetooth:

Available Uconnect hands-free communication system with Bluetooth connectivity.

Remote Start:

Available remote keyless entry and remote start system.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 miles (4,800-8,000 km) or 6 months, depending on driving conditions. Consult owner's manual or service manual for precise intervals.

Engine Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection.

Cabin Air Filter Replacement:

Every 15,000-20,000 miles (24,000-32,000 km) or annually.

Transmission Fluid Service:

Every 30,000-60,000 miles (48,000-96,000 km) for severe service; check owner's manual for specific recommendations.

Coolant Flush And Replacement:

Every 30,000-50,000 miles (48,000-80,000 km) or every 2-3 years.

Spark Plug Replacement:

Varies by engine: 3.7L V6/4.7L V8 (conventional) approx. 30,000-60,000 miles; 5.7L HEMI (platinum or iridium) approx. 100,000 miles.

Engine Oil Type:

SAE 5W-20 or 5W-30 (API Certified, ILSAC GF-4) - Check owner's manual for exact specification and capacity (approx. 5-7 quarts).

Coolant Type:

Mopar OAT (Old Type) or HOAT (Hybrid Organic Acid Technology) coolant, typically orange or pink. Mopar 50/50 mix recommended. Capacity approx. 11-13 quarts.

Brake Fluid Type:

DOT 3 or DOT 4 (check manual for specific recommendation), low-viscosity for cold weather performance.

Power Steering Fluid:

Mopar Power Steering Fluid or equivalent (e.g., ATF+4 in some cases, confirm with manual).

Transfer Case Fluid:

Mopar NV245, NV247, or NV272 transfer case fluid or equivalent.

Differential Fluid Front Rear:

API GL-5, SAE 75W-90 synthetic gear lubricant (with limited-slip additive if equipped with LSD).

Heater Core Leaks:

Common issue where the heater core fails, leading to coolant leaks into the cabin, often requiring dashboard removal.

Transfer Case Failures:

Some models have experienced issues with the electronic transfer case actuator or internal components.

Suspension Component Wear:

Ball joints, control arm bushings, and tie rod ends can wear prematurely, leading to steering looseness and noise.

Electronic Module Failures:

Various electronic control modules (e.g., TIPM - Totally Integrated Power Module, BCM - Body Control Module) can be prone to failure.

Parking Brake Issues:

Parking brake cables can seize or break, affecting functionality.

Exhaust Manifold Cracks:

Especially on V8 models, exhaust manifolds can crack, leading to exhaust leaks and ticking noises.

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for off-road capability and ruggedness, dating back to its military origins in World War II.

Grand Cherokee Lineage:

The Grand Cherokee was introduced in 1993 as a premium SUV, blending luxury and off-road capability, becoming a benchmark in its segment.

Wk Generation:

The WK generation (2005-2010) was a significant redesign from the WJ, offering a more refined and aerodynamic exterior, updated powertrains, and improved interior comfort and technology.

2008 Updates:

For 2008, the Grand Cherokee received minor updates, including some feature shuffling and potentially new option packages. The HEMI 5.7L engine became more widely available and featured Multi-Displacement System (MDS) for improved fuel economy.

Manufacturing Locations:

Primarily manufactured at the Jefferson North Assembly Plant in Detroit, Michigan, USA.

Production Years Wk:

2005-2010

🏆 Awards & Recognition

Kl Appraisal Guide Ratings:

The Grand Cherokee often received good ratings from sources like Kelley Blue Book for its value and performance, though specific awards for the 2008 model might be general segment recognitions.

Off Road Magazine Awards:

Jeep Grand Cherokee models, particularly those equipped with advanced 4x4 systems, have historically been recognized by off-road focused publications for their capability.

Safety Awards:

While individual model year awards can vary, the Grand Cherokee platform generally aimed for competitive safety features and ratings.