Positioning:
The Jeep Wrangler is an iconic off-road vehicle, known for its ruggedness and versatility. This manual caters to owners and technicians who maintain and repair this highly capable vehicle.
Competitors:
Toyota 4Runner, Land Rover Defender (historically), Nissan Xterra (discontinued)
Durability:
Renowned for its body-on-frame construction and robust drivetrain.
Off Road Capability:
Solid axles, high ground clearance, available locking differentials, and four-wheel-drive systems.
Modularity:
Removable doors, top, and windshield for an open-air driving experience.
Powertrain:
Engine, Transmission, Drivetrain, Fuel System, Exhaust System
Chassis:
Suspension, Steering, Brakes, Wheels, Tires
Electrical:
Lighting, Instrumentation, Audio, Power Accessories, Body Electrical, Powertrain Control Module (PCM)
Body:
Interior Trim, Exterior Trim, Doors, Windows, Seats, Roof Systems
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks
Repair:
Engine overhaul, transmission rebuild, brake caliper replacement, suspension component repair, electrical diagnostics
Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based troubleshooting, wiring diagrams
Installation:
Component replacement, accessory installation
Depth:
Comprehensive: From basic fluid checks to full engine and transmission rebuilds, including detailed diagnostics and schematics.
Engine Code:
3.6L Pentastar V6 (JK Generation)
Engine Type:
Naturally Aspirated, SOHC, VVT
Displacement:
3604 cc (220 cubic inches)
Bore X Stroke:
96.0 mm x 83.0 mm
Horsepower:
285 hp @ 6400 rpm
Torque:
260 lb-ft @ 4800 rpm
Injection Type:
Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline
Recommended Octane:
87 Octane Minimum (91+ Recommended for optimal performance)
Coolant Type:
Mopar OAT (Organic Acid Technology) Antifreeze/Coolant, HOAT compatible
Coolant Capacity:
Approx. 11.9 L (12.6 US qt)
Spark Plugs:
NGK LFR5AIX-11 (Iridium IX)
Oil Type:
SAE 0W-20 Synthetic Motor Oil
Oil Capacity:
Approx. 6.4 L (6.8 US qt) with filter change
Oil Filter Part Number:
Mopar MO-899 or equivalent
Type:
6-Speed Manual Transmission (NSG370)
Type:
5-Speed Automatic Transmission (W5A580)
Manual Gear Ratios:
1st: 4.46, 2nd: 2.41, 3rd: 1.57, 4th: 1.00, 5th: 0.84, 6th: 0.71
Automatic Gear Ratios:
1st: 3.59, 2nd: 2.19, 3rd: 1.41, 4th: 1.00, 5th: 0.83
Fluid Type:
API GL-3 or GL-4, SAE 75W-80 Synthetic Gear Oil (NSG370)
Fluid Type:
ATF+4 (MS-9602)
Manual Capacity:
Approx. 1.7 L (1.8 US qt)
Automatic Capacity:
Approx. 7.8 L (8.2 US qt)
Type:
Command-Trac NV241G (2WD/4WD Part-Time)
Fluid Type:
ATF+4 (MS-9602)
Fluid Capacity:
Approx. 1.7 L (1.8 US qt)
Wheelbase 2Door:
95.4 inches (2423 mm)
Wheelbase 4Door Unlimited:
116.0 inches (2946 mm)
Length 2Door:
160.0 inches (4064 mm)
Length 4Door Unlimited:
179.4 inches (4557 mm)
Width Without Doors:
73.7 inches (1872 mm)
Height With Hardtop:
72.4 inches (1839 mm)
Passenger Volume 2Door:
88.5 cubic feet (2.51 cubic meters)
Passenger Volume 4Door Unlimited:
104.4 cubic feet (2.96 cubic meters)
Cargo Volume Behind Rear Seat 2Door:
12.4 cubic feet (0.35 cubic meters)
Cargo Volume Behind Rear Seat 4Door Unlimited:
31.5 cubic feet (0.89 cubic meters)
Curb Weight 2Door Manual:
Approx. 4075 lbs (1848 kg)
Curb Weight 4Door Unlimited Auto:
Approx. 4665 lbs (2116 kg)
Max Towing Capacity:
2000 lbs (907 kg) for 2-door, 3500 lbs (1588 kg) for 4-door Unlimited
Max Payload Capacity:
Approx. 850 lbs (386 kg) for 2-door, 1000 lbs (454 kg) for 4-door Unlimited
Ground Clearance:
10.2 inches (259 mm)
Approach Angle:
42.2 degrees
Departure Angle:
32.3 degrees
Breakover Angle:
17.5 degrees
Standard Wheels:
17-inch Steel or Alloy
Standard Tires:
LT255/75R17 All-Season or Mud-Terrain
Bolt Pattern:
5x127 mm (5x5 inches)
NHTSA Rollover Resistance:
4 out of 5 stars (for 4-door Unlimited)
Stability Control:
Electronic Stability Control (ESC) with Trailer Sway Control
Traction Control:
Traction control system (TCS)
ABS:
4-wheel Anti-lock Brake System (ABS)
Hill Assist:
Hill Start Assist (HSA)
Airbags:
Front driver and passenger airbags, optional side curtain airbags (for Unlimited models)
Seatbelts:
3-point seat belts with pretensioners
Frame:
Body-on-frame construction for enhanced durability and crash protection.
Audio System:
Standard 6-speaker or optional 8-speaker Infinity® premium audio system.
Connectivity:
Uconnect® touchscreen infotainment system (optional, with navigation, Bluetooth® streaming audio, hands-free calling)
Media Inputs:
Auxiliary input jack, USB port, optional SD card slot
Cruise Control:
Standard cruise control
Tire Pressure Monitoring:
Tire Pressure Monitoring System (TPMS)
Satellite Radio:
SiriusXM® Satellite Radio (optional subscription)
Oil Change Interval:
Every 10,000 miles (16,000 km) or 12 months, whichever comes first (synthetic oil recommended)
Tire Rotation:
Every 7,500 miles (12,000 km)
Air Filter Replacement:
Inspect every 15,000 miles (24,000 km), replace as needed or every 30,000 miles (48,000 km)
Cabin Air Filter Replacement:
Inspect every 15,000 miles (24,000 km), replace as needed or every 20,000 miles (32,000 km)
Brake Fluid Flush:
Every 30,000 miles (48,000 km) or 24 months
Transmission Fluid Change Manual:
Every 60,000 miles (96,000 km)
Transmission Fluid Change Automatic:
Every 60,000 miles (96,000 km)
Transfer Case Fluid Change:
Every 60,000 miles (96,000 km)
Coolant Flush:
First flush at 100,000 miles (160,000 km), then every 50,000 miles (80,000 km)
Power Steering Fluid:
MS-5901 (Chrysler/Dodge/Jeep Power Steering Fluid)
Differential Fluid Front:
SAE 75W-140 Synthetic Gear Lubricant (API GL-5)
Differential Fluid Rear:
SAE 75W-140 Synthetic Gear Lubricant (API GL-5) (with limited-slip additive if equipped)
Common Wear Items:
Clutch wear (manual transmission), brake pad and rotor wear, exhaust system components (corrosion), suspension bushings
Pentastar V6 Concerns:
Potential for oil filter housing leaks, occasional intake manifold issues
Electronics:
Water ingress affecting electronic modules in certain situations, particularly with aftermarket modifications or extensive off-roading without proper sealing.
Body And Frame:
Rust development on frame and body panels, especially in areas with harsh winters and road salt.
Jeep Legacy:
The Jeep brand has a storied history dating back to World War II, synonymous with rugged, go-anywhere capability.
Wrangler Lineage:
The Wrangler nameplate evolved from the CJ (Civilian Jeep) series, which began in 1945. The Wrangler YJ (1987-1995), TJ (1997-2006), and JK (2007-2018) represent distinct generations.
Jk Generation Introduction:
The JK generation was introduced for the 2007 model year, marking a significant redesign with a wider track, more interior space, and the introduction of the four-door 'Unlimited' variant.
Manufacturing Location:
Toledo, Ohio, USA
Production Years:
2007-2018 (JK generation)
Off Road Acclaim:
Consistently recognized by off-road publications and enthusiasts for its class-leading capability.
Segment Popularity:
The Wrangler is a perennial best-seller in the compact SUV segment, particularly for its niche off-road focus.
Consumer Reports Reliability:
Varied ratings from Consumer Reports, often influenced by specific model years and owner experiences with its rugged design and off-road use.