🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation:

WK

Product Name:

2005-2008 Jeep Grand Cherokee Service Repair Manual

👋 Introduction

Vehicle Segment:

Mid-size SUV (Sport Utility Vehicle)

Key Competitors:

Ford Explorer, Chevrolet Trailblazer, Toyota 4Runner, Nissan Pathfinder, Ford Edge, GMC Envoy.

Design:

WK generation featured a more modern and refined exterior and interior design compared to its predecessor (WJ), with improved aerodynamics and a stiffer body structure.

Powertrain Options:

Offered a range of powerful engine options, from the efficient 3.7L V6 to the robust 4.7L V8 and the performance-oriented 5.7L HEMI V8. The SRT8 model offered a significantly more powerful 6.1L HEMI.

Capability:

Maintained Jeep's legendary off-road capability with available advanced four-wheel-drive systems like Quadra-Trac II and Quadra-Drive II, featuring electronic limited-slip differentials.

Interior Comfort:

Offered a spacious and comfortable interior with available premium features like leather upholstery, heated seats, dual-zone climate control, and a premium audio system.

📋 Manual Details

Applicable Years:

2005, 2006, 2007, 2008

Applicable Models:

Jeep Grand Cherokee (WK)

Engine Coverage:

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

Trim Level Coverage:

All trim levels including Laredo, Limited, Overland, SRT8

Estimated Page Count:

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

Type:

Service Repair Manual / Workshop Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Powertrain:

Engine mechanical (3.7L PowerTech, 4.7L PowerTech, 5.7L HEMI VVT), Fuel System, Cooling System, Exhaust System, Ignition System, Lubrication System, Starting and Charging System.

Drivetrain:

Transmission (5-45RFE, NAG1 5-Speed Automatic), Transfer Case (NV245, NV245 with Selec-Trac, NV245 with Quadra-Trac II, NV245 with Quadra-Drive II), Front Axle, Rear Axle, Driveshafts, CV Joints.

Suspension And Steering:

Front Suspension (Independent Short/Long Arm), Rear Suspension (Multi-Link), Steering System (Hydraulic Power Steering), Power Steering Pump, Steering Gearbox/Rack and Pinion.

Brakes:

Brake System Description, Front and Rear Brakes (Disc), Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Brake Booster, Master Cylinder, Brake Lines and Hoses.

Electrical:

Battery, Charging System, Starting System, Lighting System (Headlights, Taillights, Interior), Instrument Cluster, Gauges, Warning Lamps, Powertrain Control Module (PCM), Body Control Module (BCM), HVAC Control Module, Powertrain Diagnostic Trouble Codes (DTCs), Body Diagnostic Trouble Codes (DTCs).

Body And Interior:

Body Exterior, Doors, Hood, Liftgate, Bumpers, Seating Systems, Interior Trim, HVAC System (Air Conditioning, Heating, Ventilation), Audio System, Navigation System, Power Accessories (Windows, Locks, Mirrors).

Maintenance:

Oil and Filter Changes, Air Filter Replacement, Spark Plug Replacement, Coolant Flush and Replacement, Brake Fluid Flush and Replacement, Transmission Fluid and Filter Service, Differential Fluid Change, Transfer Case Fluid Change.

Repair:

Engine Component Replacement (e.g., water pump, thermostat, alternator, starter), Transmission Overhaul and Repair, Differential Rebuild, Suspension Component Replacement (shocks, struts, ball joints, tie rods), Brake Component Replacement (rotors, pads, calipers), Steering Component Replacement, Electrical Component Diagnosis and Replacement, HVAC System Repair, Body Panel Repair and Replacement.

Troubleshooting:

Diagnostic procedures for engine performance issues, transmission problems, electrical faults, HVAC system malfunctions, brake system irregularities, and more. Includes symptom-based diagnostics and DTC interpretation.

Diagnostics:

Detailed diagnostic charts, wiring diagrams, component testing procedures, and scan tool data interpretation for all major systems.

Depth:

Comprehensive, covering everything from routine maintenance to complex engine and transmission rebuilds. Includes detailed torque specifications, clearances, and diagnostic strategies.

📊 Manual Specifications

Format Type:

Digital Download (PDF)

Searchability:

Searchable text within PDF for quick access to information.

Printability:

Printable pages, allowing users to print only necessary sections.

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

3.7L V6:

PowerTech, SOHC, 12 valves. Displacement: 3701 cc (225.9 ci). Bore x Stroke: 93.0 mm x 90.9 mm. Horsepower: ~210 hp @ 5200 rpm. Torque: ~235 lb-ft @ 4000 rpm.

4.7L V8:

PowerTech, SOHC, 16 valves. Displacement: 4701 cc (286.9 ci). Bore x Stroke: 93.0 mm x 85.7 mm. Horsepower: ~230-235 hp @ 4500 rpm. Torque: ~300-305 lb-ft @ 3200 rpm.

5.7L V8 Hemi:

HEMI, SOHC, 16 valves with Multi-Displacement System (MDS). Displacement: 5654 cc (345.1 ci). Bore x Stroke: 99.5 mm x 92.5 mm. Horsepower: ~330-350 hp @ 5000-5200 rpm. Torque: ~375-390 lb-ft @ 4000-4200 rpm.

Injection:

Sequential Electronic Fuel Injection (SEFI)

System:

Distributorless Ignition System (DIS) with Coil-On-Plug (COP)

Capacity:

Approx. 12.5-13.5 quarts (11.8-12.8 liters) depending on engine

Oil Capacity 3.7L:

5.0 US quarts (4.7 liters) with filter

Oil Capacity 4.7L:

5.0 US quarts (4.7 liters) with filter

Oil Capacity 5.7L:

7.0 US quarts (6.6 liters) with filter

Viscosity 3.7L 4.7L:

SAE 5W-20 (preferred), SAE 5W-30

Viscosity 5.7L:

SAE 5W-20 (preferred), SAE 5W-30

🔧 Transmission

Type:

5-Speed Automatic Transmission

Models:

5-45RFE (for 3.7L and 4.7L engines), NAG1 (W5A580) (for 5.7L HEMI)

Type:

N/A (All models were automatic)

Sequential Shift:

Available AutoStick sequential shifting feature on some models.

Fluid:

ATF+4 (Mopar P/N 05013457AA or equivalent)

Fluid:

Pentosin ATF1 (MB 236.10 specification) or Mopar P/N 05127382AB or equivalent.

Capacity:

Approx. 11.5 US quarts (10.9 liters) for a dry fill.

Capacity:

Approx. 9.5 US quarts (9.0 liters) for a dry fill.

📐 Dimensions

Length:

Approx. 189.9 inches (4823 mm)

Width:

Approx. 74.9 inches (1902 mm) without mirrors

Height:

Approx. 69.4 inches (1763 mm)

Wheelbase:

Approx. 116.0 inches (2946 mm)

Curb Weight:

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

Gross Vehicle Weight Rating:

Approx. 6,500 - 7,000 lbs (2948 - 3175 kg)

Cargo Volume Behind 1St Row:

Approx. 72.3 cu ft (2047 liters)

Cargo Volume Behind 2Nd Row:

Approx. 30.5 cu ft (864 liters)

🛡️ Safety Features

NHTSA Frontal Driver:

5 Stars (2005-2008)

NHTSA Frontal Passenger:

5 Stars (2005-2008)

NHTSA Side Driver:

5 Stars (2005-2008)

NHTSA Side Passenger:

5 Stars (2005-2008)

NHTSA Rollover:

4 Stars (2005-2008)

Electronic Stability Control:

Standard (ESP - Electronic Stability Program)

Traction Control:

Standard

Antilock Brakes:

Standard (ABS)

Airbags:

Standard front and front side-impact airbags. Optional side curtain airbags for front and second-row occupants.

Seatbelts:

Three-point seatbelts with pretensioners and load limiters for all seating positions.

💡 Technology Features

Audio System:

Available Boston Acoustics premium audio system, Sirius satellite radio.

Navigation:

Optional factory navigation system.

Parking Sensors:

Optional ParkSense rear park assist system.

Tire Pressure Monitoring:

Optional Tire Pressure Monitoring (TPM) system.

Bluetooth:

Optional Uconnect Bluetooth hands-free communication system available on later models within this range.

🔧 Maintenance

Oil Change Interval:

Every 6,000 miles (9,650 km) or 6 months, whichever comes first, or as indicated by the Oil Change Indicator System.

Tire Rotation:

Every 6,000 miles (9,650 km) or 6 months, whichever comes first.

Engine Air Filter:

Inspect every 15,000 miles (24,000 km), replace as needed or every 30,000 miles (48,000 km).

Spark Plugs 3.7L 4.7L:

Replace every 100,000 miles (160,000 km) with original equipment spark plugs (e.g., Champion Platinum).

Spark Plugs 5.7L Hemi:

Replace every 100,000 miles (160,000 km) with original equipment spark plugs (e.g., Champion 5.7L HEMI plugs).

Coolant Flush:

First flush at 60,000 miles (96,500 km) or 5 years, then every 30,000 miles (48,000 km) or 3 years thereafter.

Transmission Fluid Service:

Check fluid level regularly. Recommended replacement interval varies by driving conditions, typically around 60,000 miles (96,500 km) under normal use.

Power Steering Fluid:

Mopar Power Steering Fluid or equivalent Mopar P/N 05143100AA

Brake Fluid:

DOT 3

Heater Core Leaks:

Common issue leading to coolant loss and interior fogging/wetness. Often requires replacement of the heater core located behind the dashboard.

Transfer Case Issues:

Potential for issues with the NV245 transfer case, including binding or failure of the electronic components. Regular fluid changes are crucial.

Throttle Body Issues:

Electronic Throttle Control (ETC) system can sometimes cause rough idling or stalling. Cleaning the throttle body may resolve some issues.

Suspension Components:

Wear and tear on ball joints, tie rod ends, and sway bar links can lead to clunking noises and compromised handling, especially with higher mileage.

Power Window Motors:

Infrequent failure of power window motors and regulators.

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for robust off-road capability and durability, stemming from its military roots.

Wk Generation:

The WK generation, introduced for the 2005 model year, was a significant redesign over the WJ. It marked a shift towards a more refined, car-like driving experience while retaining Jeep's core SUV attributes. It was designed in collaboration with Mercedes-Benz during the DaimlerChrysler era.

Manufacturing Locations:

Jefferson North Assembly Plant, Detroit, Michigan, USA; also assembled in Graz, Austria for European markets.

🏆 Awards & Recognition

Design Award:

The 2005 Jeep Grand Cherokee was recognized for its new styling and improved interior.

Safety Award:

Received high safety ratings from the NHTSA for its segment.

Powertrain Award:

The 5.7L HEMI engine was frequently praised for its power and performance in SUV applications.