🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Model Code:

JK

Year:

2007

Engine Options Covered:

2.8L Diesel, 3.8L Gasoline

👋 Introduction

Market Position:

The Jeep Wrangler JK, known for its iconic off-road capabilities and rugged design, appeals to a segment of buyers prioritizing utility, adventure, and customization. This service manual caters to owners and technicians who maintain and repair these vehicles.

Competitive Analysis:

The JK Wrangler competes in the compact SUV/off-road segment, facing rivals like the Toyota FJ Cruiser (discontinued), Toyota 4Runner, and Ford Bronco (later generations). Its distinct body-on-frame construction and solid axles set it apart from unibody crossovers.

Key Features:

Iconic 7-slot grille, removable doors and roof, solid axle front and rear suspension (on most configurations), legendary off-road prowess.

Manual Value Proposition:

This manual provides comprehensive factory-level repair and maintenance information, enabling DIY owners to perform complex tasks or assisting professional technicians with accurate procedures, detailed illustrations, and diagnostic guidance, ultimately saving time and money on vehicle upkeep.

📋 Manual Details

Coverage Areas:

All Repair, Servicing, and Troubleshooting Procedures

Page Count:

Hundreds (specific number not provided, but implied extensive)

Manual Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

Downloadable PDF

Platform Compatibility:

Windows & MAC Computers, Tablets, Smartphones

License:

Lifetime Use, No Expiry Dates, No Renewal Fees

Content Type:

Professional Mechanics and Technicians Grade

📖 Manual Coverage

Systems Covered:

Engine Mechanical, Engine Performance, Fuel System, Exhaust System, Cooling System, Lubrication System, Ignition System, Starting System, Charging System, Transmission (Automatic & Manual), Driveline, Axles, Suspension System, Steering System, Brake System, ABS/Traction Control, HVAC System, Body & Chassis, Electrical System, Interior Components, Exterior Components, Body Control Modules (BCM), Powertrain Control Modules (PCM), Diagnostic Trouble Codes (DTCs)

Procedures Included:

Routine Maintenance, Scheduled Servicing, Diagnostics, Troubleshooting, Component Removal & Installation, Reassembly, Adjustments, Repair Procedures, Wiring Diagrams, Component Testing, Emission Controls, Pre-Delivery Inspection (PDI), Torque Specifications

Technical Depth:

Comprehensive from basic maintenance to in-depth engine and transmission overhauls, electrical system diagnostics, and bodywork repairs. Includes step-by-step instructions and detailed exploded diagrams.

📊 Manual Specifications

File Format:

PDF

Print Quality:

Printable (single pages or entire manual)

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Content Style:

Detailed Photos & Diagrams, Exploded Diagrams

Searchability:

Likely searchable PDF content (standard for professional manuals)

⚙️ Engine Specifications

Engine Name:

3.8L V6 (Chrysler EGH)

Displacement:

3.8 Liters (3778 cc)

Configuration:

V6

Bore X Stroke:

96.0 mm x 87.0 mm

Compression Ratio:

9.6:1

Horsepower Est:

202 hp @ 5200 rpm

Torque Est:

237 lb-ft @ 4000 rpm

Valvetrain:

Overhead Valve (OHV) 2 valves per cylinder

Fuel System:

Sequential Multi-Port Fuel Injection (MPI)

Recommended Fuel:

87 Octane Unleaded Gasoline

Engine Name:

2.8L CRD (VM Motori R428)

Displacement:

2.8 Liters (2777 cc)

Configuration:

Inline-4

Horsepower Est:

177 hp @ 4000 rpm

Torque Est:

336 lb-ft @ 1600 rpm

Fuel System:

Common Rail Direct Injection (CRDI)

Turbocharger:

Variable Geometry Turbocharger (VGT)

🔧 Transmission

Transmission Type:

6-Speed Manual (NSG370)

Transmission Type:

4-Speed Automatic (42RLE)

Transmission Type:

5-Speed Manual (NV3550 / NV3560)

Transmission Type:

5-Speed Automatic (W5A580)

Driveline:

Part-time Command-Trac NV241G transfer case; optional Trac-Lok limited-slip differentials

📐 Dimensions

Wheelbase:

95.4 inches (2423 mm)

Length:

160.0 inches (4064 mm)

Width:

73.7 inches (1872 mm)

Height:

70.9 inches (1801 mm)

Wheelbase:

116.0 inches (2946 mm)

Length:

179.4 inches (4557 mm)

Curb Weight Est:

4,000 - 4,500 lbs (1814 - 2041 kg) depending on configuration

🛡️ Safety Features

NHTSA Rollover Resistance:

4/5 Stars (for 2-door models, typical for this era)

Active Features:

Anti-lock Braking System (ABS), Electronic Stability Control (ESC), Traction Control System (TCS), Electronic Roll Mitigation (ERM)

Passive Features:

Front Airbags, Occupant Detection System

💡 Technology Features

Infotainment Options:

Factory-installed radio with AM/FM, CD player, and auxiliary input. Optional Uconnect infotainment system with touchscreen, navigation, and satellite radio availability in higher trims or as an upgrade.

Driver Assistance Features:

Basic driver aids like ABS, ESC, TCS. No advanced driver-assistance systems (ADAS) like adaptive cruise control or lane keeping assist were standard or widely available on the 2007 model.

Connectivity Options:

Optional Uconnect hands-free calling system with Bluetooth.

🔧 Maintenance

Oil Change Interval:

Every 6,000 miles (9,600 km) or 6 months (whichever comes first) for gasoline engine; consult manual for diesel. Refer to manual for specific severe vs. normal driving conditions.

Tire Rotation Interval:

Every 6,000 miles (9,600 km) or 6 months.

Engine Oil Type Gas:

SAE 5W-30 (API SN or later)

Engine Oil Capacity Gas:

5.0 US quarts (4.7 Liters) with filter for 3.8L V6

Engine Oil Type Diesel:

SAE 5W-40 (API CJ-4 or later)

Engine Oil Capacity Diesel:

6.9 US quarts (6.5 Liters) with filter for 2.8L CRD

Coolant Type:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, Blue (MS-9769) or equivalent.

Automatic Transmission Fluid Type:

ATF+4 (MS-9602)

Manual Transmission Fluid Type:

MS-9224 for NSG370 (Manual), Refer to manual for NV3550/NV3560

Transfer Case Fluid Type:

NV241G: ATF+4 (MS-9602)

Front Differential Fluid Type:

SAE 80W-90 (GL-5) Hypoid Gear Oil. Use friction modifier if equipped with Trac-Lok.

Rear Differential Fluid Type:

SAE 80W-90 (GL-5) Hypoid Gear Oil. Use friction modifier if equipped with Trac-Lok.

Known Issues:

The 3.8L V6 is known for its lack of power and lower fuel economy relative to its displacement. Some common issues include oil filter adapter housing leaks, water pump leaks, and clutch wear on manual transmissions. Early JK models had potential death wobble issues related to steering and suspension components, which can often be addressed with proper alignment and component replacement. The 2.8L CRD diesel can be prone to head gasket issues if not properly maintained, and glow plug problems are also noted.

📚 Vehicle History

Brand Heritage:

Jeep has a storied history dating back to World War II, with the original Jeep Willys MB. The brand is synonymous with off-road capability and rugged utility.

Model Evolution:

The JK generation, introduced for the 2007 model year, was a significant redesign from the TJ. It offered a longer wheelbase with the four-door 'Unlimited' model, improved on-road manners, and modern amenities while retaining its core off-road DNA. This generation also saw the introduction of the 3.8L V6 as the primary gasoline engine.

Production Period:

2007-2018

🏆 Awards & Recognition

Recognitions:

While specific awards for the 2007 model year are not prominently highlighted, the Jeep Wrangler JK generation consistently received recognition for its off-road capabilities and iconic design from various automotive publications and enthusiast groups throughout its production run.