🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Model Variant:

JK (3rd Generation)

Years Covered:

2007, 2008, 2009

Chassis Code:

JK

👋 Introduction

Target Audience:

Jeep Wrangler JK owners (2007-2009) with basic to advanced mechanical aptitude, independent repair shops, and DIY enthusiasts.

Value Proposition:

Provides the same information as dealer-used manuals, offering significant cost savings for repairs and maintenance compared to professional shop rates.

Detail Level:

Detailed illustrations, step-by-step instructions, comprehensive specifications, and troubleshooting guides.

Accessibility:

Instant download format eliminates shipping delays and costs.

📋 Manual Details

Primary Coverage:

Complete Repair and Service

Accessory Coverage:

Wiring Diagrams, Chassis, Body

Estimated Page Count:

High volume, likely exceeding 2000 pages (typical for full factory service manuals)

Type:

Factory Service Manual (FSM) / Repair Manual

Language:

English

Format:

Digital (Instant Download), Printable

📖 Manual Coverage

Engine:

Service and Overhauling, Engine Control System, Induction, Fuel System, Emission Control

Transmission Drivetrain:

Transmission (Manual & Automatic), Differentials, Axle

Chassis Suspension Brakes:

Chassis, Steering and Suspension, Brakes, ABS

Electrical Body:

Electrical System, Wiring Diagrams, Body, Interior, Restraint System, Heater/Air Conditioning

Cooling System:

Radiator, water pump, thermostat, heater core, cooling fans, coolant flow and pressure testing.

Fuel System:

Fuel pump, fuel injectors, fuel pressure testing, evaporative emission control (EVAP) system.

Emission Control:

Catalytic converters, oxygen sensors, PCV system, emission control components and testing.

Steering:

Power steering pump, steering gearbox/rack and pinion, steering column, linkages, alignment procedures.

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, track bars, anti-sway bars, lift kit installation considerations (though not specific to aftermarket kits).

Brakes:

Front and rear disc brakes, brake calipers, rotors, pads, brake lines, master cylinder, power booster, parking brake, ABS system components and diagnosis.

Chassis Body:

Frame inspection, body panel replacement, door mechanisms, latches, hinges, glass replacement, weatherstripping, structural components.

Restraint System:

Seat belt operation and service, airbag system components (sensors, control module), but not replacement of deployed airbags (typically requires specialized service).

Interior:

Seat removal and installation, dashboard components, trim panels, console, instrument cluster, HVAC controls.

Differential Drive:

Front and rear differentials, axle shafts, bearings, seals, lubrication, gear ratios, operation of locking differentials (if equipped, though less common on base models).

Axle:

Front and rear axle assemblies, hub bearings, seals, CV joints (on front axles).

Wiring Diagram:

Comprehensive wiring schematics for all electrical systems, including lighting, ignition, starting, charging, engine control, HVAC, audio, power accessories, and safety systems.

Maintenance:

General Maintenance, Periodic Lubrication, Fluid Checks and Changes

Diagnostics Troubleshooting:

Troubleshooting and Diagnostics (comprehensive)

Repair Rebuild:

Engine Rebuilding, Transmission Repair, Brake System Overhaul, Suspension Component Replacement, Body Panel Repair

Installation Adjustment:

Component Adjustments, System Calibration

Torque Specifications:

Extensive torque settings for all critical fasteners (engine, chassis, suspension, brakes).

General Information:

Vehicle identification, safety precautions, jacking and towing information, fastener torque specifications, diagnostic procedures.

Engine Service Repair:

Component removal and installation, cylinder head service, piston and ring service, crankshaft and bearing service, camshaft service, timing system service.

Transmission Service Repair:

Manual and automatic transmission overhaul, clutch service, driveshaft and U-joint service, transfer case removal and service.

Heater Air Conditional:

HVAC system diagnosis, refrigerant handling (with safety warnings), blower motor, A/C compressor, condenser, evaporator, heater core service.

Depth:

Factory-level detail, suitable for basic mechanical skills to professional technicians, covering everything from minor fixes to complete overhauls.

Diagnostic Tools References:

References diagnostic trouble codes (DTCs) and provides procedures for using scan tools (OBD-II).

📊 Manual Specifications

Digital Format:

Likely PDF (searchable text and selectable pages for printing)

Printability:

High-quality, all pages are printable for workshop use.

Digital Binding:

N/A (digital document)

Digital Paper Quality:

N/A (digital document, but designed for practical printout on standard paper)

⚙️ Engine Specifications

Engine Code 2007-2009:

Chrysler/Jeep 3.8L V6 (ERB)

Horsepower 3.8L:

Approximately 202 hp @ 5200 rpm

Torque 3.8L:

Approximately 237 lb-ft @ 4000 rpm

Fuel Delivery:

Multi-port Fuel Injection (MPI)

Cooling System Type:

Pressurized liquid cooling system

🔧 Transmission

Manual Transmission:

6-speed manual (NSG370)

Automatic Transmission:

4-speed automatic (42RLE)

Transfer Case:

Command-Trac NV241G for 4x4 models

📐 Dimensions

Wheelbase 2-Door:

95.4 inches (2423 mm)

Wheelbase 4-Door Unlimited:

116.0 inches (2946 mm)

Curb Weight 2-Door Approx:

3,875 - 4,075 lbs (1758 - 1848 kg)

Curb Weight 4-Door Unlimited Approx:

4,265 - 4,465 lbs (1934 - 2025 kg)

🛡️ Safety Features

NHTSA Front Impact Driver 2007:

4 Stars

NHTSA Front Impact Passenger 2007:

4 Stars

NHTSA Side Impact Front Driver 2007:

5 Stars

NHTSA Side Impact Front Passenger 2007:

5 Stars

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Electronic Stability Control (ESC) and Traction Control System (TCS) were becoming standard across the industry

Airbags:

Front airbags for driver and passenger

💡 Technology Features

Infotainment System:

Base models featured a simple AM/FM/CD player. Optional Infinity sound systems and SiriusXM satellite radio were available. Navigation was less common in early JK models.

Advanced Driver Assistance:

Limited by modern standards; primary safety features were ABS and ESC. Backup cameras and advanced parking aids were not standard.

Connectivity Options:

Auxiliary input jack for audio devices was common. Bluetooth connectivity for hands-free calling became more prevalent in later model years.

🔧 Maintenance

Oil Change Interval Typical:

Every 3,000 - 5,000 miles or 3-6 months, depending on driving conditions (refer to manual for exact recommendation).

Tire Rotation Interval:

Every 6,000 - 7,500 miles

Engine Oil Type:

SAE 5W-30 (Chrysler MS-6395 specification recommended)

Coolant Type:

Chrysler HOAT (Hybrid Organic Acid Technology) coolant or equivalent

Transmission Fluid Auto:

ATF+4 (Chrysler MS-9602 specification)

Transfer Case Fluid:

Mopar NV241G transfer case fluid or equivalent (e.g., Dexron III/Mercon compatible)

Common Wear Items:

Clutch wear (manual transmission), ball joints, tie rod ends, drag link, oil filter housing leaks (early models), exhaust manifold cracks (less common on 3.8L V6 compared to later Pentastar).

Electrical Quirks:

Occasional issues with power windows, locks, or climate control systems can be found in forums, often related to grounds or connectors.

📚 Vehicle History

Jeep Legacy:

The Jeep Wrangler is the direct descendant of the original Willys military jeep, embodying off-road capability and ruggedness since 1941.

Jk Generation Intro:

The JK generation (2007-2018) was a significant redesign, being the first Wrangler built with a unibody-on-frame construction that was more car-like, offering improved on-road manners while retaining exceptional off-road prowess.

Production Location:

Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Accolades:

The Wrangler consistently receives accolades for its off-road capability from various automotive publications and off-roading enthusiasts.