🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Model Generation:

JK

Product Name:

Jeep Wrangler JK 3.0L 3.6L 2015-2018 Service Repair Workshop Manual Download PDF

Engine Codes Covered:

3.0L EcoDiesel (VM Motori L64, 2014-2018), 3.6L Pentastar (Chrysler ERB, 2012-2018)

👋 Introduction

Vehicle Segment:

Compact/Mid-size SUV, Off-road vehicle

Key Selling Points:

Legendary off-road capability, iconic design, customizable platform

Primary Competitors Jk Era:

Toyota 4Runner, Nissan Xterra, Land Rover Defender (in some markets), Ford Bronco (retroactively for comparison)

Manual Utility:

Essential for DIY enthusiasts and professional mechanics, enabling proper maintenance and repair, thus preserving vehicle integrity and value.

Manual Value Proposition:

Provides access to factory-level information, saving significant costs compared to dealership-only services.

📋 Manual Details

Years Covered:

2015, 2016, 2017, 2018

Engine Variants Covered:

3.0L V6 Turbo Diesel (EcoDiesel), 3.6L V6 Pentastar

Estimated Page Count:

Hundreds (Specific number not provided, but described as comprehensive)

Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Engine mechanical, lubrication system, cooling system, fuel system (gasoline & diesel), intake system, exhaust system, engine control system (PCM/ECM), ignition system, emission controls, turbocharger system (for 3.0L EcoDiesel)

Transmission:

Manual transmission (NV3500/NSG370), Automatic transmission (W5A580/NAG1 for 3.0L, 5-speed 545RFE/68RFE for 3.6L), Transfer case (NV241OR 'Rock-Trac', Command-Trac options), Drivetrain (front and rear axle, driveshafts, U-joints, differentials)

Brakes:

Brake system hydraulics, ABS, traction control, brake calipers, rotors, pads, parking brake

Steering:

Power steering system, steering column, steering linkage, steering gear/box

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, sway bars, steering knuckles

Electrical:

Battery, starting system, charging system, lighting system, instrument cluster, body control module (BCM), fuse box diagrams, power windows, locks, mirrors, wipers, horn

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system components, refrigerant system, blower motor, climate controls

Body:

Body exterior and interior, doors, hood, tailgate, fenders, bumpers, seats, trim panels, convertible top system

Chassis:

Frame components, body mounting, exhaust hangers

Safety Systems:

Airbag system (SRS), seat belts

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections

Troubleshooting:

Diagnostic procedures, common fault identification, electrical circuit testing, diagnostic trouble codes (DTCs)

Repair:

Component removal and installation, engine overhaul, transmission rebuild, suspension and steering repair, brake system service, electrical system repair, body panel replacement

Diagnostics:

Step-by-step diagnostic flowcharts, wiring diagrams, component testing procedures

Specifications:

Torque specifications for all fasteners, diagnostic data, clearances, adjustments

Technical Service Bulletins Tsbs:

Likely includes reference to or details from TSBs relevant to the covered period and models.

Depth:

Comprehensive (covers all repairs, servicing, and troubleshooting from basic maintenance to advanced diagnostics and component rebuilds)

Diagrams:

Hundreds of detailed photos and exploded diagrams

Instruction Style:

Step-by-step instructions

📊 Manual Specifications

File Type:

PDF

Searchability:

Presumed searchable text within the PDF

Print Capability:

Printable (single page or entire manual)

Binding:

Not applicable (Digital Download)

Paper Quality:

Not applicable (Digital Download)

Licensing Terms:

Lifetime use, no expiry dates, no renewal fees, usable on multiple devices/computers

Operating Systems:

Compatible with all Windows and MAC computers

⚙️ Engine Specifications

Engine 1 Name:

3.6L Pentastar V6

Engine 1 Displacement:

3.6 Liters (3604 cc)

Engine 1 Configuration:

V6

Engine 1 Valvetrain:

SOHC, 24 Valves (6 valves per cylinder)

Engine 1 Horsepower Approx:

285 hp @ 6400 rpm

Engine 1 Torque Approx:

260 lb-ft @ 4800 rpm

Engine 1 Fuel System:

Multi-port Fuel Injection (MPI)

Engine 1 Fuel Type:

Unleaded Gasoline (87 octane recommended)

Engine 1 Emission Controls:

Catalytic converter, Oxygen sensors, EGR (engine dependent on market)

Engine 2 Name:

3.0L EcoDiesel V6

Engine 2 Displacement:

3.0 Liters (2987 cc)

Engine 2 Configuration:

V6

Engine 2 Valvetrain:

DOHC, 24 Valves (4 valves per cylinder)

Engine 2 Horsepower Approx:

240 hp @ 3600 rpm

Engine 2 Torque Approx:

442 lb-ft @ 1600 rpm

Engine 2 Fuel System:

Common Rail Direct Injection (CRDI) with Turbocharger

Engine 2 Fuel Type:

Diesel

Engine 2 Emission Controls:

Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR) with DEF (Diesel Exhaust Fluid)

🔧 Transmission

Transmission 3.6L Manual:

6-speed manual (NSG370)

Transmission 3.6L Automatic:

5-speed automatic (W5A580 for early JK, 65RFE for later JK)

Transmission 3.0L Automatic:

8-speed automatic (8HP70/8HP75)

Transfer Case Options:

Command-Trac NV241G (2-speed, part-time, manually shifted), Rock-Trac NV241OR (2-speed, part-time, manually shifted, with 4.0:1 low range)

Transfer Case Fluid:

Mopar NV241 Transfer Case Fluid (or equivalent meeting spec)

Automatic Transmission Fluid:

ATF+4 (for 5-speed automatic), Mopar ZF Lifeguardfluid 8 (for 8-speed automatic)

Manual Transmission Fluid:

Mopar Manual Transmission Lubricant (or equivalent meeting spec)

📐 Dimensions

Wheelbase 2 Door:

95.4 inches

Wheelbase 4 Door Unlimited:

116.0 inches

Length 2 Door:

160.0 - 161.3 inches

Length 4 Door Unlimited:

179.4 - 180.7 inches

Width Excluding Mirrors:

73.7 inches

Height 2 Door:

72.4 - 73.6 inches

Height 4 Door Unlimited:

72.4 - 74.2 inches

Curb Weight 2 Door Approx:

3,900 - 4,400 lbs

Curb Weight 4 Door Unlimited Approx:

4,300 - 5,000 lbs

Towing Capacity 2 Door Max:

2,000 lbs

Towing Capacity 4 Door Unlimited Max:

3,500 lbs

Payload Capacity Varies By Trim And Configuration:

Consult specific vehicle for exact payload

Ground Clearance Typical:

9.7 - 10.1 inches (dependent on tire size and suspension)

🛡️ Safety Features

NHTSA Ratings Jk:

Generally rated 4 out of 5 stars for overall safety in frontal and side impact tests. Specific ratings vary by year and configuration. Rollover resistance often a concern for SUVs, but the JK's low center of gravity and stability control systems aim to mitigate this.

Traction Control:

Standard Electronic Stability Control (ESC) with Traction Control (TC) and Roll Mitigation

ABS:

Standard Anti-lock Braking System (ABS)

Hill Start Assist:

Available on some models with automatic transmissions

Airbags:

Front airbags, optional side curtain airbags (depending on trim and year)

Seat Belts:

3-point seat belts with pretensioners

💡 Technology Features

Infotainment Systems Available:

Uconnect systems with touchscreen displays (e.g., 5-inch, 6.5-inch, 8.4-inch depending on trim and year). Features include AM/FM radio, CD/MP3 player, USB/Auxiliary input, Bluetooth connectivity, satellite radio (SiriusXM).

Driver Assistance Features:

Rear backup camera (standard on most models from 2018), ParkSense parking assist (optional).

Connectivity Options:

Bluetooth for hands-free calling and audio streaming, USB ports for device charging and media playback.

🔧 Maintenance

Oil Change Interval 3.6L:

Every 10,000 miles or 12 months, whichever comes first (using synthetic oil). Check oil level monthly.

Oil Change Interval 3.0L Ecodiesel:

Every 10,000 miles or 12 months, whichever comes first (using approved synthetic diesel oil). Check oil level monthly.

Air Filter Replacement:

Every 30,000 miles or as needed, depending on driving conditions. Inspect every oil change.

Engine Coolant Flush:

Every 100,000 miles or 5 years (using Mopar OAT coolant).

Transmission Fluid Change Automatic:

Every 60,000 miles for severe use (towing, off-roading), or 100,000 miles for normal use. Refer to manual for specific transmission type.

Transfer Case Fluid Change:

Every 60,000 miles or as recommended in severe use.

Differential Fluid Change:

Every 60,000 miles or 5 years. Consider changing earlier if frequently submerged in water.

Engine Oil 3.6L:

SAE 5W-30, API SN certified, meeting Chrysler MS-6395. Synthetic recommended.

Engine Oil 3.0L Ecodiesel:

SAE 0W-30, API CJ-4 or CK-4 certified, meeting Chrysler MS-11106 (or equivalent diesel specification).

Coolant:

Mopar OAT (Organic Acid Technology) Antifreeze/Coolant, HOAT formulation (Pink), meeting Chrysler MS-9769 or MS-12106.

Brake Fluid:

DOT 3 or DOT 4 brake fluid, meeting Chrysler MS-5775 or MS-45284.

Common Issues Pentastar:

Oil filter housing leaks, intake manifold issues (less common on later models), potential for oil pressure sensor issues. Headlights condensation (minor).

Common Issues Ecodiesel:

DEF system issues, potential for EGR valve problems, exhaust manifold leaks. Urea tank heater failures in cold climates.

Common Issues General Jk:

Death wobble (shimmying of the front end at speed, often related to steering and suspension wear), HVAC blend door actuator failures, water pump leaks, power steering fluid leaks, rust on the frame or body panels, especially in salt-belt regions.

📚 Vehicle History

Jeep Legacy:

Jeep has a long history dating back to World War II, synonymous with ruggedness, off-road capability, and freedom.

Wrangler Jk Introduction:

The JK generation replaced the TJ Wrangler and was produced from 2007 to 2018. It was a significant redesign, featuring a more modern chassis and interior while retaining iconic styling.

Jk Updates 2015-2018:

The 2015 model year saw significant updates, including the introduction of the 3.0L EcoDiesel engine option and interior refinements. The 3.6L Pentastar V6 became the standard engine for most models.

Production Location:

Toledo, Ohio, USA

Production Period For Jk:

2007-2018

🏆 Awards & Recognition

Jeep Wrangler Awards General:

The Jeep Wrangler (including the JK generation) has consistently received accolades for its off-road prowess, including numerous '4x4 of the Year' awards from various automotive publications. Praised for its durability, capability, and unique market positioning.