Target Audience:
Owners with basic mechanical skills and independent auto service professionals.
Advantage:
Provides the same information as authorized dealer service departments, offering significant cost savings for repairs.
Content Quality:
Accurate, clear, and concise text with diagrams and illustrations for easy comprehension.
Value Proposition:
Can pay for itself on the first major or minor service/repair performed.
Specificity:
Vehicle-specific information, not generic. Identical to dealer-used manuals.
Engine Mechanical:
Engine mechanical system repairs and diagnostics.
Engine Electrical:
Engine electrical system diagnostics and repair, including wiring schematics.
Emission Control:
Emission control system components, diagnostics, and service.
Fuel System:
Fuel system service, repair, and troubleshooting, including injection and delivery.
Clutch System:
Clutch system components and service procedures (for manual transmission vehicles).
Manual Transmission:
Manual transaxle system service and repair.
Automatic Transmission:
Automatic transaxle system service and repair.
Driveshaft Axle:
Driveshaft and axle assembly maintenance, repair, and troubleshooting.
Suspension System:
Suspension system diagnosis, alignment, and component replacement.
Steering System:
Steering system components, power steering, and alignment procedures.
Restraint System:
Restraint systems, including airbags and seatbelts, service and diagnostics.
Brake System:
Brake system service, repair, ABS, and troubleshooting.
Body Interior Exterior:
Bodywork, interior trim, and exterior component service and repair.
Body Electrical:
Body electrical systems, lighting, power accessories, and wiring.
HVAC System:
Heating, Ventilation, and Air Conditioning (HVAC) system service and repair.
Maintenance Procedures:
Step-by-step instructions for routine maintenance tasks.
Repair Procedures:
Detailed repair procedures for all major vehicle systems.
Troubleshooting:
Diagnostic procedures and troubleshooting guides for common and complex issues.
Wiring Schematics:
Comprehensive wiring diagrams for all electrical systems.
Specifications Data:
Detailed technical specifications and data required for repairs.
Diagnostics:
Includes detailed diagnostic procedures for engine, transmission, chassis, and electrical systems. Focus on identifying faults and their causes.
Depth:
Covers information used by professional mechanics, including step-by-step instructions and diagrams, suitable for both DIY owners with basic skills and professional technicians.
Rebuild Procedures:
The manual likely includes procedures for engine and transmission disassembly, inspection, repair, and reassembly, covering complete rebuilds.
Engine Options Wk 2008:
Likely 3.7L V6 'PowerTech' (e.g., P code), 4.7L V8 'PowerTech' (e.g., N code), and 5.7L V8 HEMI 'Magnum' (e.g., D code).
3.7L V6 Hp 2008:
Approx. 210 hp @ 5200 rpm
3.7L V6 Torque 2008:
Approx. 235 lb-ft @ 4000 rpm
4.7L V8 Hp 2008:
Approx. 305 hp @ 5650 rpm
4.7L V8 Torque 2008:
Approx. 334 lb-ft @ 3950 rpm
5.7L Hemi V8 Hp 2008:
Approx. 357 hp @ 5000 rpm
5.7L Hemi V8 Torque 2008:
Approx. 389 lb-ft @ 4000 rpm
Fuel Delivery:
Multi-point fuel injection (MPI) or sequential fuel injection (SFI) depending on engine.
Fuel Type:
Unleaded gasoline (87 octane recommended, higher for optimal performance from HEMI).
Standard Transmission:
5-speed automatic transmission (e.g., W5A580 or 545RFE) was standard on most models.
Optional Transmission:
A 6-speed manual transmission was available on some earlier WK models, but less common for 2008, with an automatic being predominant.
4Wd Systems:
Quadra-Trac II (full-time 4WD), Quadra-Drive II (full-time 4WD with electronic limited-slip differentials), or Command-Trac (part-time 4WD) likely available options.
Wheelbase Wk:
Approximately 114.8 inches (2916 mm).
Length Wk 2008:
Approximately 188.7 inches (4793 mm).
Width Wk 2008:
Approximately 74.9 inches (1902 mm).
Height Wk 2008:
Approximately 69.9 inches (1775 mm).
Curb Weight Range:
Approx. 4,500 - 5,000 lbs (2041 - 2268 kg) depending on engine and drivetrain.
NHTSA Front Impact Driver:
Likely 5-star rating for front impact, driver.
NHTSA Front Impact Passenger:
Likely 5-star rating for front impact, passenger.
IIHS Front Offset Good:
The WK Grand Cherokee generally received 'Good' ratings in IIHS front offset crash tests.
Traction Control:
Standard on most models.
Electronic Stability Control:
Standard on most models.
Airbags:
Frontal airbags, side curtain airbags (for front and rear passengers), and available front seat-mounted side airbags.
Infotainment Options:
Available with premium audio systems (e.g., Boston Acoustics), navigation systems, and satellite radio. Uconnect hands-free communication system was an option.
Driver Assistance Features:
Features like rear parking assist sensors were common. Advanced driver aids were less prevalent in this era.
Connectivity Features:
Optional SiriusXM Satellite Radio, optional Uconnect for Bluetooth connectivity and voice commands.
Oil Change Interval:
Typically every 6,000 to 7,500 miles (9,650 to 12,000 km) or 6 months, depending on driving conditions and oil type used (consult manual for exact details).
Tire Rotation Interval:
Every 6,000 to 7,500 miles (9,650 to 12,000 km) or with oil changes.
Spark Plug Replacement Interval:
Varies by engine. For HEMI, typically around 100,000 miles (160,000 km) with platinum-tipped plugs. 3.7L and 4.7L may have shorter intervals. Consult manual for specifics.
Engine Oil Specification:
SAE 5W-20 or 5W-30 (depending on engine and climate). Always verify with manual and oil cap. Chrysler specification MS-6395 is often referenced.
Transmission Fluid Specification:
For 545RFE: ATF+4 (MS-9602). For W5A580: ATF LT 71141 or equivalent (consult manual for precise type).
Coolant Specification:
Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, 5-year/100,000 mile formula (usually pink or orange).
Common Wear Items:
Front suspension components (ball joints, control arm bushings), power steering pumps/hoses, EGR valve, and sometimes fuel pump issues.
Electrical Gremlins:
While generally robust, older vehicles can experience minor electrical issues with door modules or sensors.
Jeep Heritage:
Jeep has a long-standing reputation for off-road capability and robust SUVs, dating back to WWII.
Wk Generation Period:
The WK generation of the Grand Cherokee was produced from the 2005 to 2010 model years.
Manufacturing Location:
Assembled in Jefferson North Assembly Plant in Detroit, Michigan, USA.
Segment Performance:
The Grand Cherokee consistently ranked well in its segment for comfort, capability, and available power, particularly with the HEMI engine.
Consumer Reports Ranking:
Consumer Reports ratings varied by year and specific configurations, but often praised its ride and power.
