🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Chassis Code:

JK

👋 Introduction

Segment:

Compact/Mid-size SUV, Off-road Vehicle

Key Competitors:

Toyota FJ Cruiser, Nissan Xterra, Suzuki Grand Vitara

Off Road Capability:

Renowned for its off-road prowess with solid axles, robust 4x4 systems, and high ground clearance.

Convertibility:

Iconic removable doors, roof panels (hardtop or soft top), and fold-down windshield options.

📋 Manual Details

Model Years:

2007, 2008, 2009

Type:

Factory Service Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Mechanical:

Engine, Transmission (Manual & Automatic), Drivetrain, Axles, Suspension, Steering, Brakes, Exhaust

Electrical:

Ignition, Charging System, Starting System, Lighting, Instrumentation, Power Distribution, Powertrain Control Modules (PCM), Body Control Modules (BCM), Body Electrical Systems (Wipers, Horn, etc.)

Chassis And Body:

Frame, Body Panels, Doors, Hood, Liftgate, Interior Trim, Seats, HVAC System, Exterior Trim

Maintenance:

Fluid Changes, Filter Replacements, Lubrication, Spark Plug Replacement, Belt Inspection/Replacement

Diagnostics:

Troubleshooting guides, Diagnostic Trouble Codes (DTCs), Circuit diagrams, Symptom-based diagnostics

Repair:

Component removal and installation, Engine overhaul, Transmission overhaul, Brake system repair, Suspension component replacement, Electrical component repair

Body And Trim:

Removal and installation of bumpers, fenders, doors, hardtop/soft top components, interior panels, seats, and trim pieces.

HVAC:

Diagnosis and repair of air conditioning system, heater core replacement, blower motor service, and blend door actuator diagnosis.

Wiring Diagrams:

Detailed electrical schematics for all vehicle systems, including power distribution, grounds, and component connections.

Depth:

Comprehensive (from basic maintenance to complete engine and transmission rebuilds, including wiring diagrams and specifications)

Diagnostic Tools:

Information on using diagnostic scan tools (e.g., DRB III or equivalent aftermarket tools) for retrieving DTCs and monitoring live data.

Sections:

Includes General Information, Maintenance, Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Body, HVAC, Electrical, and Troubleshooting sections.

📊 Manual Specifications

Quality:

High-resolution, searchable PDF with clear graphics and text

Recommendation:

Optimized for digital viewing and selective printing

Type:

N/A (Digital Download)

Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Name:

3.8L V6 (EGH)

Horsepower:

202 hp @ 5200 rpm

Torque:

235 lb-ft @ 4000 rpm

Induction:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline, 87 octane minimum recommended

ECU Type:

Jeep Powertrain Control Module (PCM)

Bore X Stroke:

3.92 in x 3.37 in

Compression Ratio:

9.1:1

Block Material:

Cast Iron

Head Material:

Aluminum

Coolant Type:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant (50/50 mix with distilled water)

Oil Type:

SAE 5W-30 Synthetic

Oil Capacity:

5.0 US quarts (4.7 L) with filter

Spark Plugs:

Champion Copper Plus (e.g., CHT101) or equivalent

🔧 Transmission

Transmission Type:

NSG 370 6-Speed Manual Transmission

Transmission Type:

NAG1 (W5A580) 5-Speed Automatic Transmission

Transfer Case:

NV241OR 'Off-Road' Command-Trac (2-speed, part-time 4WD with 4:1 low-range ratio)

Fluid Type:

Chrysler spec MS-9224 (or equivalent GL-4 manual transmission fluid)

Fluid Type:

Mopar ATF+4 (or equivalent)

📐 Dimensions

Wheelbase:

95.4 inches (2423 mm) for 2-door / 116.0 inches (2946 mm) for 4-door Unlimited

Overall Length:

169.4 inches (4303 mm) for 2-door / 191.5 inches (4864 mm) for 4-door Unlimited

Ground Clearance:

10.5 inches (267 mm)

Curb Weight:

Approx. 3900-4100 lbs (1769-1860 kg) depending on configuration

🛡️ Safety Features

NHTSA Front Impact:

4 Stars (Driver & Passenger)

NHTSA Side Impact:

5 Stars (Front & Rear Seats)

Traction Control:

Electronic Stability Control (ESC) with Trailer Sway Control (TSC)

Braking:

4-wheel Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA)

Airbags:

Front Advanced Driver and Passenger Airbags, Optional Side Curtain Airbags (later models)

Seat Belts:

3-point seat belts with pretensioners and load limiters

💡 Technology Features

Audio System:

Available Uconnect Multimedia Center with SiriusXM Satellite Radio, CD/DVD Player, MP3 Connectivity, and optional Navigation.

Visibility:

Optional fog lamps, available rear backup camera (on higher trims/later models).

Auxiliary Input:

Standard auxiliary audio input jack

🔧 Maintenance

Oil Change:

Every 6,000 miles (9,600 km) or 6 months, whichever comes first

Tire Rotation:

Every 6,000 miles (9,600 km)

Engine Air Filter:

Inspect every 15,000 miles (24,000 km), replace as needed

Spark Plugs:

Replace every 100,000 miles (160,000 km) (copper plugs - check manual for specific interval)

Brake Fluid:

DOT 3

Power Steering Fluid:

ATF+4 (Mopar power steering fluid or equivalent)

Common Problems:

Death Wobble (typically requires steering stabilizer, alignment, and sometimes component replacement), Clutch wear (manual transmission), Oil filter housing leaks, Wiper motor failure, EVAP system leaks (Check Engine Light)

📚 Vehicle History

Legacy:

Continuation of the legendary Jeep lineage, dating back to its military origins in WWII.

Generation:

JK Generation (2007-2018)

Key Changes 2007:

Introduction of the JK generation, featuring a complete redesign with a coil-spring suspension, wider track, and modern interior amenities.

Manufacturing Plant:

Toledo Complex, Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Awards:

Consistently recognized by off-road enthusiasts and publications for its class-leading capability.