Segment:
Compact SUV, Off-road focused.
Segment Description:
The Jeep Wrangler (JK generation) is a highly capable off-road vehicle known for its iconic design, ruggedness, and go-anywhere attitude.
Key Competitors 2013:
Toyota FJ Cruiser, Toyota 4Runner, Land Rover Defender (where applicable).
Iconic Design:
Seven-slot grille, round headlights, exposed hinges, removable doors and roof.
Off Road Capability:
Solid front and rear axles (on most models), Command-Trac NV241 GII part-time 2-speed transfer case, optional Trac-Lok limited-slip differential, optional Dana 44 heavy-duty axles.
Powertrain:
Engine, transmission, transfer case, drivetrain (4x4 system).
Chassis:
Suspension (front and rear), steering system, braking system, wheels and tires.
Electrical:
Body electrical, power systems, instruments, audio systems, lighting, wiring diagrams, Powertrain Control Module (PCM), Antilock Braking System (ABS), Electronic Stability Control (ESC).
Body:
Exterior and interior trim, doors, glass, seats, bumpers, chassis, frame repair.
Maintenance:
Scheduled maintenance, lubrication, filter replacement, fluid changes.
Diagnostics:
Troubleshooting procedures, diagnostic trouble codes (DTCs), diagnostic testing for all major systems.
Repair:
Step-by-step repair procedures for all major components and systems, including engine overhaul, transmission repair, brake system overhaul, suspension component replacement.
Special Tools:
Identification and usage of specialized tools required for specific repairs.
Depth:
Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and wiring diagrams.
Format Details:
High-resolution PDF, searchable text, printable pages.
Quality:
Factory original quality, clear diagrams and illustrations.
Binding:
N/A (Digital Download PDF)
Paper Type:
N/A (Digital Download PDF)
Engine Code:
3.6L Pentastar V6 (JKU and some JK models)
Engine Name:
3.6L Pentastar V6
Displacement:
3604 cc (220 cu in)
Configuration:
V6, SOHC, 24 Valves
Bore X Stroke:
96.0 mm x 83.0 mm (3.78 in x 3.27 in)
Compression Ratio:
10.0:1
Horsepower Hp:
283 hp @ 6350 rpm
Torque Lb Ft:
260 lb-ft @ 4800 rpm
Fuel Delivery:
Sequential Electronic Fuel Injection (SEFI), Multi-port Fuel Injection (MPFI).
Fuel Type:
Unleaded Regular (87 Octane Recommended)
Engine Management System:
Chrysler's Multi-Displacement System (MDS) - for some applications, though less common on the Wrangler Pentastar for 2013.
Alternative Engine:
3.8L EGH V6 (JK models prior to Pentastar introduction - Less common for 2013, but might be mentioned in broader JK manuals)
Alternative Engine Displacement:
3778 cc (230 cu in)
Alternative Engine Horsepower:
202 hp @ 5200 rpm
Alternative Engine Torque:
230 lb-ft @ 4000 rpm
Transmission Type Std:
6-Speed Manual (NSG370)
Transmission Type Opt:
5-Speed Automatic (W5A580)
Transfer Case:
Command-Trac NV241 GII (Part-time, 2-speed, 4WD)
Transfer Case Gear Ratios:
4-Low Ratio: 2.72:1
Manual Transmission Fluid:
Mopar Manual Transmission Lubricant (MS-9224) or equivalent (SAE 75W-85 GL-3 or GL-4)
Automatic Transmission Fluid:
Mopar ATF+4 (MS-9602) or equivalent
Wheelbase 2 Door:
95.4 inches (2423 mm)
Wheelbase 4 Door:
116.0 inches (2946 mm)
Length 2 Door:
160.0 inches (4064 mm)
Length 4 Door:
179.2 inches (4552 mm)
Width Excluding Mirrors:
73.7 inches (1872 mm)
Height 2 Door:
72.4 inches (1839 mm)
Height 4 Door:
72.1 inches (1831 mm)
Curb Weight 2 Door Min:
4,105 lbs (1862 kg)
Curb Weight 4 Door Min:
4,465 lbs (2025 kg)
Towing Capacity:
Up to 2,000 lbs (907 kg) for 2-door, 3,500 lbs (1588 kg) for 4-door.
Ground Clearance Front Axle:
10.2 inches (259 mm)
Approach Angle:
38.4 degrees
Departure Angle:
31.4 degrees (2-door) / 30.2 degrees (4-door)
Breakover Angle:
21.8 degrees (2-door) / 22.4 degrees (4-door)
NHTSA Rollover Rating 2 Door:
4 out of 5 stars
NHTSA Rollover Rating 4 Door:
3 out of 5 stars
Electronic Stability Control:
Standard, with Electronic Roll Mitigation (ERM).
Antilock Braking System:
Standard 4-wheel disc brakes with ABS.
Traction Control:
Standard Traction Control System (TCS).
Airbags:
Front advanced multi-stage airbags, available supplemental front side airbags.
Rollover Protection:
Reinforced sport cage, integrated front and rear frame bumpers.
Infotainment Systems Available:
Uconnect systems with SiriusXM Satellite Radio, optional navigation, CD/DVD player, and various speaker configurations.
Driver Assistance Features:
Traction Control System (TCS), Electronic Stability Control (ESC) with Electronic Roll Mitigation (ERM), Hill Start Assist (HSA), Hill Descent Control (HDC) on some models.
Connectivity Options:
Bluetooth connectivity for hands-free calling and audio streaming on equipped models.
Oil Change Interval:
Every 10,000 miles (16,000 km) or 12 months, whichever comes first (with synthetic oil).
Tire Rotation Interval:
Every 6,000-8,000 miles (9,600-12,800 km).
Engine Air Filter Replacement:
Every 30,000 miles (48,000 km) or as needed based on driving conditions.
Cabin Air Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months.
Engine Oil Spec:
SAE 5W-30 Synthetic, meeting Chrysler Material Standard MS-6395.
Engine Oil Capacity:
5.5 US quarts (5.2 liters) for 3.6L Pentastar V6.
Coolant Type:
OAT (Organic Acid Technology) Antifreeze/Coolant, Mopar HOAT (Orange) or equivalent.
Coolant Capacity:
Approx. 10.8 US quarts (10.2 liters) for 3.6L Pentastar V6.
Pentastar Oil Leaks:
Potential oil filter housing gasket leaks or valve cover gasket leaks on Pentastar engines. Manual provides repair procedures.
Death Wobble Jk:
While often suspension/steering component wear related, the manual covers diagnosing and replacing components like track bars, ball joints, and steering stabilizers that can contribute.
Climate Control Issues:
Common electrical gremlins in HVAC control modules or actuators are addressed with diagnostic charts.
Jeep Legacy:
The Jeep brand has a rich history rooted in military vehicles, dating back to World War II, synonymous with off-road capability and ruggedness.
Wrangler Lineage:
The Wrangler is the direct descendant of the CJ (Civilian Jeep) series, which itself evolved from the original military Jeep. The JK generation, introduced for the 2007 model year, represented a significant redesign with a larger chassis and improved on-road manners while retaining its core off-road prowess.
Jk Generation Years:
2007-2018
Manufacturing Location:
Toledo, Ohio, USA