Panel replacement, dent repair, frame straightening, door and latch adjustment, soft/hard top repair and adjustment.
Axle Service:
Front and rear axle disassembly, bearing replacement, seal replacement, gear pattern adjustment, differential lock service (if equipped).
Technical Depth
Depth Of Coverage:
Comprehensive: Covers basic maintenance to full vehicle rebuilds. Includes detailed torque specifications, assembly sequences, diagnostic procedures, and wiring diagrams.
📊 Manual Specifications
File Format
PDF Quality:
Hi-Resolution Illustrations, Instructions, Photos, and Diagrams
Readability:
Pages can be read and printed directly from CD, or copied to hard drive for offline access.
Binding Type
Binding:
Digital (PDF) - No physical binding
Paper Type
Paper Type:
Not Applicable (Digital Format)
⚙️ Engine Specifications
Primary Engine 2 8L
Engine Code:
VM Motori R 428 DOHC (2.8L CRD)
Displacement 2 8L:
2.8 liters (2776 cc)
Configuration 2 8L:
Inline 4-cylinder, Turbocharged Diesel
Horsepower 2 8L:
Approx. 177 hp @ 3800 rpm (varies slightly by market/year)
Torque 2 8L:
Approx. 305-310 lb-ft @ 1800-2000 rpm (varies slightly by market/year)
Fuel System 2 8L:
Common Rail Direct Injection (CRDI) with Turbocharger
Primary Engine 3 8L
Engine Code:
Chrysler ERB (3.8L V6)
Displacement 3 8L:
3.8 liters (3778 cc)
Configuration 3 8L:
V6, SOHC (Single Overhead Cam), 12 Valves
Horsepower 3 8L:
Approx. 202 hp @ 5200 rpm
Torque 3 8L:
Approx. 237 lb-ft @ 4000 rpm
Fuel System 3 8L:
Sequential Multi-Port Fuel Injection (MPFI)
🔧 Transmission
Transmission Options
Manual Transmission:
NV3550 5-speed manual (likely for 2.8L diesel), NSG370 6-speed manual (likely for 3.8L V6, specific to JK)
Automatic Transmission:
42RLE 4-speed automatic (common for 3.8L V6)
Features
Transfer Case:
Command-Trac NV241G (part-time, 2-speed with 4LO) and optional Rock-Trac NV241ORHD (heavy-duty, 4:1 low-range ratio)
📐 Dimensions
Exterior Dimensions 2 Door
Wheelbase 2 Door:
Approx. 95.4 inches (2423 mm)
Length 2 Door:
Approx. 160.0 inches (4064 mm)
Exterior Dimensions 4 Door Unlimited
Wheelbase 4 Door:
Approx. 116.0 inches (2946 mm)
Length 4 Door:
Approx. 179.4 inches (4557 mm)
Weights
Curb Weight:
Varies by model and configuration, typically starting around 3,800 lbs for 2-door and 4,100 lbs for 4-door Unlimited.
🛡️ Safety Features
Ratings
NHTSA Front Impact Rating:
4-star (driver and passenger for 2007-2010 models)
IIHS Small Overlap Front:
Not tested or rated for this generation (as the test was introduced later)
Active Features
Stability Control:
Standard Electronic Stability Control (ESC) including Electronic Roll Mitigation (ERM) and Traction Control System (TCS)
Passive Features
Airbags:
Standard front airbags, optional side curtain airbags (depending on trim and year)
💡 Technology Features
Infotainment
Infotainment Systems:
Base Uconnect radios with CD player, SiriusXM Satellite Radio. Optional: Premium Uconnect systems with navigation, Bluetooth connectivity, USB input, and larger touchscreens became more prevalent in later JK years and across higher trims.
Driver Assistance
Driver Assistance Features:
Standard features like ABS, Traction Control, and Stability Control. Advanced driver-assistance systems (ADAS) like adaptive cruise control or lane keeping assist were not commonly available on this generation.
Connectivity
Connectivity Options:
Bluetooth hands-free calling (optional on some models), USB ports (optional).
🔧 Maintenance
Service Intervals Oil Change
Oil Change Interval 3 8L:
Every 3,000-5,000 miles or 6 months (depending on driving conditions and oil type). Consult manual for specific API service category. Synthetic recommended.
Oil Change Interval 2 8L:
Refer to manual for diesel-specific intervals, typically around 5,000-7,500 miles or 12 months. Use CJ-4 or CK-4 specification oil.
Fluid Specifications
Engine Oil 3 8L:
SAE 5W-20, API SN or equivalent.
Engine Oil 2 8L:
SAE 5W-30 or 5W-40 Diesel Engine Oil (API CJ-4 or CK-4 spec).
Coolant:
Mopar OAT (Organic Additive Technology) or equivalent HOAT (Hybrid Organic Additive Technology) antifreeze/coolant, typically purple or orange.
Brake Fluid:
DOT 3 or DOT 4 Brake Fluid.
Transmission Fluid Auto:
Mopar ATF+4 or equivalent.
Transfer Case Fluid:
Mopar NV241 Transfer Case Lubricant or equivalent.
Differential Fluid Front Rear:
GL-5 Gear Oil (e.g., 75W-90 or 75W-140 depending on axle type and temperature). Limited-slip additive may be required for certain differentials.
Known Issues
3 8L Engine Common Concerns:
Oil filter housing leaks, minor oil consumption in some units, exhaust manifold cracks (less common than on earlier models but possible).
Wiper motor failures, HVAC blower motor resistor issues, leaks (soft top/hard top sealing), ball joint wear (especially with larger tires/off-road use).
📚 Vehicle History
Brand Heritage
Jeep Legacy:
Jeep has a long-standing heritage dating back to World War II, renowned for its off-road prowess and durability.
Model Evolution Jk Generation
Jk Introduction:
The JK generation was introduced for the 2007 model year, marking a significant redesign from the TJ generation. It was the first Wrangler to offer a four-door variant (Wrangler Unlimited).
Major Updates Within Generation:
Minor updates included revised interior materials, available connectivity features, and powertrain refinements across the years.
🏆 Awards & Recognition
Recognitions
Jeep Wrangler Off Road Accolades:
Consistently recognized by automotive publications and off-road enthusiasts for its class-leading off-road capability and iconic design. Often featured in 'Best SUVs' or 'Best Off-Road Vehicles' lists.