🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Model Designation:

JK

Product Name:

Jeep Wrangler 3.0L 3.6L Complete Workshop Service Repair Manual 2015 2016 2017 2018

Vehicle Platform:

JK

Engine Code 3.0L:

EcoDiesel (VM Motori A630 DOHC)

Engine Code 3.6L:

Pentastar VVT V6 (EGR)

👋 Introduction

Market Position:

Iconic off-road vehicle with a strong lifestyle appeal

Primary Competitors Jk Era:

Toyota 4Runner, Chevrolet Colorado ZR2, Ford Bronco (later models), Land Rover Defender (older generations)

Jeep Wrangler Jk Key Features:

Legendary off-road capability, removable doors and roof, solid front axle (until 2012 refresh), robust construction, customizable nature

Manual Value Proposition:

Essential for owners and technicians to maintain, diagnose, and repair the Jeep Wrangler accurately and efficiently, saving on labor costs and ensuring optimal performance.

📋 Manual Details

Years Covered:

2015, 2016, 2017, 2018

Engine Variants Covered:

3.0L EcoDiesel V6, 3.6L Pentastar V6

Body Styles Covered:

2-Door (Wrangler Sport, Sahara, Rubicon), 4-Door Unlimited (Wrangler Unlimited Sport, Sahara, Rubicon)

Estimated Page Count:

Over 2500 pages (typical for comprehensive workshop manuals)

Manual Type:

Complete Workshop Service Repair Manual

Manual Purpose:

Diagnostic, repair, maintenance, troubleshooting, overhaul

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Powertrain Engine:

3.0L EcoDiesel V6, 3.6L Pentastar V6 (mechanical, lubrication, cooling, fuel, ignition, emission control, starting, charging)

Powertrain Transmission:

6-Speed Manual (NSG 370), 8-Speed Automatic (8HP70/8HP75)

Powertrain Drivetrain:

Transfer Case (NV241 GOR), Front Axle, Rear Axle (Dana 30/44), Driveshafts, Axle Ratios, Differentials (Standard, Trac-Lok, electronic locking)

Chassis Suspension:

Front (Solid Axle with Coil Springs, Control Arms, Track Bar), Rear (Solid Axle with Coil Springs, Control Arms, Track Bar), Shock Absorbers, Springs

Chassis Steering:

Power Steering System (Hydraulic), Steering Column, Steering Gear

Chassis Brakes:

Front (Vented Discs), Rear (Discs), ABS, Electronic Stability Control (ESC), Hill Start Assist (HSA), Hill Descent Control (HDC), Brake Booster, Master Cylinder, Lines, Calipers

Body Exterior:

Body Panels, Doors, Hood, Tailgate, Bumpers, Fenders, Doors (Half-doors, Full doors), Hardtop/Soft Top Components, Glass, Mirrors

Body Interior:

Seats, Dashboard, Trim Panels, Floor Coverings, Seat Belts, Airbags

Electrical Engine Controls:

PCM, Sensors, Actuators, Ignition System, Fuel Injection System, Crankshaft/Camshaft Position Sensors

Electrical Body Controls:

Lighting (Headlamps, Taillamps, Interior), Wipers, Horn, Power Windows, Power Locks, Keyless Entry, Security System

Electrical Instruments And Gages:

Instrument Cluster, Gauges (Speedometer, Tachometer, Fuel, Temp), Warning Lamps

Electrical Audio And Navigation:

Radio, Speakers, Uconnect Infotainment System, Navigation System (if equipped)

Electrical Climate Control:

HVAC System (Heating, Ventilation, Air Conditioning), Blower Motor, Evaporator, Condenser, Heater Core

Electrical Safety Systems:

Airbag System, Occupant Restraint Controller (ORC), Seat Belt Pretensioners

Maintenance Procedures:

Oil Changes, Filter Replacements (Oil, Air, Fuel, Cabin), Fluid Checks and Replacements, Tire Rotation and Balancing, Brake Pad Replacement, Spark Plug Replacement

Diagnostic Procedures:

OBD-II Diagnostics, DTC Code Interpretation, Symptom-Based Troubleshooting, Component Testing (using multimeter, oscilloscope)

Repair Procedures:

Engine Mechanical (Timing Chain, Head Gaskets, Pistons, Valves), Transmission Rebuild, Clutch Replacement, Differential Overhaul, Suspension Component Replacement (Shocks, Control Arms), Brake System Repair (Calipers, Lines), Steering System Repair, Electrical Component Replacement (Sensors, Modules), Body Panel Replacement, HVAC System Repair

Troubleshooting Guides:

Step-by-step guides for common and uncommon problems across all systems

Overhaul Procedures:

Engine rebuild, transmission overhaul, axle rebuild

Installation Procedures:

Accessory installation, component replacement guidelines

Technical Depth:

Comprehensive (from basic maintenance to full engine/transmission rebuilds)

Diagrams And Illustrations:

Detailed exploded views, wiring diagrams, circuit schematics, diagnostic flowcharts

Torque Specifications:

All critical fasteners with precise torque values

Clearances And Tolerances:

Engine component clearances, bearing tolerances, etc.

Diagnostic Tools And Equipment:

Recommended specialized tools and diagnostic equipment

📊 Manual Specifications

File Format:

PDF

Searchable Text:

Yes (fully indexed and searchable)

Print Quality:

High Resolution (suitable for printing individual pages or the entire manual)

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Name 3.6L:

3.6L Pentastar VVT V6 (EGR)

Displacement 3.6L:

3604 cc (220 cubic inches)

Configuration 3.6L:

V6 (60-degree bank angle)

Valve Train 3.6L:

DOHC (Dual Overhead Camshafts) with Variable Valve Timing (VVT)

Bore X Stroke 3.6L:

96 mm x 83 mm

Compression Ratio 3.6L:

10.5:1

Horsepower 3.6L:

285 hp @ 6400 rpm (typical for 2015-2018 models)

Torque 3.6L:

260 lb-ft @ 4800 rpm (typical for 2015-2018 models)

Engine Name 3.0L:

3.0L EcoDiesel V6 (VM Motori A630 DOHC)

Displacement 3.0L:

2987 cc (182 cubic inches)

Configuration 3.0L:

V6 (60-degree bank angle), Turbocharged Common Rail Diesel

Valve Train 3.0L:

DOHC (Dual Overhead Camshafts)

Bore X Stroke 3.0L:

83 mm x 92 mm

Compression Ratio 3.0L:

16.1:1

Horsepower 3.0L:

240 hp @ 3600 rpm

Torque 3.0L:

442 lb-ft @ 1600 rpm

Fuel Type 3.6L:

Unleaded Gasoline (87 octane recommended)

Fuel System 3.6L:

Electronic Multi-Point Fuel Injection (MPI)

Fuel Type 3.0L:

Diesel Fuel (ULSD)

Fuel System 3.0L:

Common Rail Direct Injection (CRDI), Turbocharged

🔧 Transmission

Transmission Type Standard 3.6L:

6-Speed Manual (NSG 370)

Transmission Type Optional 3.6L:

5-Speed Automatic (W5A580)

Transmission Type 3.0L:

8-Speed Automatic (8HP70/8HP75)

Transfer Case Model:

NV241 GOR (Command-Trac - standard, Rock-Trac - optional on Rubicon)

Transfer Case Gear Ratios:

2.72:1 (Command-Trac), 4.00:1 (Rock-Trac)

Axle Ratio Standard:

3.21:1, 3.73:1 (optional)

Axle Ratio Rubicon:

4.10:1

Transmission Fluid Spec Manual:

MS-58 (refer to manual for specific type)

Transmission Fluid Spec Automatic 5Sp:

ATF+4 (Mopar)

Transmission Fluid Spec Automatic 8Sp:

LT 71141 or equivalent (refer to manual)

📐 Dimensions

Wheelbase 2Door:

95.4 inches (2423 mm)

Length 2Door:

169.2 inches (4300 mm)

Width 2Door Body:

73.7 inches (1872 mm)

Height 2Door:

72.1 inches (1831 mm)

Wheelbase 4Door:

116.0 inches (2947 mm)

Length 4Door:

179.4 inches (4557 mm)

Width 4Door Body:

73.7 inches (1872 mm)

Height 4Door:

73.6 inches (1869 mm)

Cargo Volume Behind Rear Seat 2Door:

9.8 cubic feet (277 liters)

Cargo Volume Behind Front Seat 2Door:

31.5 cubic feet (892 liters)

Cargo Volume Behind Rear Seat 4Door:

31.5 cubic feet (892 liters)

Cargo Volume Behind Front Seat 4Door:

70.6 cubic feet (2000 liters)

Curb Weight 2Door Est:

3900 - 4200 lbs (depending on engine/trim)

Curb Weight 4Door Est:

4300 - 4600 lbs (depending on engine/trim)

Towing Capacity:

2000 lbs (2-door), 3500 lbs (4-door Unlimited)

Standard Wheel Size Sport:

16-inch steel or alloy

Standard Tire Size Sport:

P225/75R16

Optional Wheel Size Rubicon:

17-inch alloy

Optional Tire Size Rubicon:

LT255/75R17 (BFGoodrich Mud-Terrain T/A)

Wheel Bolt Pattern:

5 x 5 inches (127 mm)

🛡️ Safety Features

NHTSA Overall Rating 2015:

4/5 Stars (overall)

IIHS Front Crash Rating 2015:

Good

IIHS Side Crash Rating 2015:

Good

IIHS Roof Strength Rating 2015:

Good

Active Safety Features:

Anti-lock Braking System (ABS), Electronic Stability Control (ESC), Traction Control System (TCS), Hill Start Assist (HSA), Hill Descent Control (HDC)

Passive Safety Features:

Front Airbags, Side Curtain Airbags (optional/standard by trim), Seat Belt Pretensioners, High-Strength Steel Frame

💡 Technology Features

Infotainment System:

Uconnect system (available in 5-inch or 8.4-inch touchscreen configurations)

Infotainment Features:

Bluetooth connectivity, USB ports, SiriusXM Satellite Radio, optional Navigation, Apple CarPlay/Android Auto (later model year availability might vary).

Driver Assistance Features:

Rear backup camera, Hill Start Assist, Hill Descent Control, Electronic Stability Control.

Connectivity Options:

Uconnect Access (subscription-based for remote features, Wi-Fi hotspot on some trims).

🔧 Maintenance

Oil Change Interval 3.6L:

Every 10,000 miles or 12 months, whichever comes first (using synthetic oil), or as indicated by the Oil Change Indicator System.

Air Filter Replacement Interval 3.6L:

Every 30,000 miles or as needed based on driving conditions.

Engine Coolant Flush Interval 3.6L:

First at 150,000 miles, then every 60,000 miles thereafter.

Spark Plug Replacement Interval 3.6L:

Approximately 100,000 miles (using Iridium spark plugs).

Oil Change Interval 3.0L:

Every 10,000 miles or 12 months, whichever comes first (synthetic diesel oil).

Fuel Filter Replacement Interval 3.0L:

Every 20,000-30,000 miles or as recommended for diesel.

Diesel Exhaust Fluid (Def) Refill:

As needed, typically indicated by dashboard warnings.

Engine Oil Spec 3.6L:

SAE 0W-20 Full Synthetic (Chrysler MS-6395)

Engine Oil Capacity 3.6L:

5.5 US quarts (5.2 liters)

Engine Oil Spec 3.0L:

SAE 5W-30 Full Synthetic Diesel Engine Oil (API CJ-4 or CK-4, ACEA C3)

Engine Oil Capacity 3.0L:

7.7 US quarts (7.3 liters)

Coolant Type:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, 5-Year/100,000 Mile Formula (or equivalent HOAT meeting Chrysler MS-9769/MS-12106)

Brake Fluid Type:

DOT 3

Power Steering Fluid Type:

Mopar Power Steering Fluid or ATF+4 (refer to manual for specific application)

Common Issues Pentastar:

Oil filter housing leaks, EGR cooler failures (earlier models), occasional lifter noise.

Common Issues Ecodiesel:

Potential for NOx sensor issues, DEF system faults, common diesel particulate filter regeneration issues.

Common Issues Jk Platform:

Wiper motor failure, evaporator core leaks (HVAC), death wobble (front suspension alignment/components), PCM module failures.

📚 Vehicle History

Jeep Brand Heritage:

Founded in 1941, Jeep is synonymous with off-road capability and ruggedness, originating from military vehicles.

Jk Generation Production Years:

2007-2018

Jk Generation Key Changes 2011:

Introduction of 3.6L Pentastar V6 engine, interior and exterior styling updates.

Jk Generation Key Changes 2015:

Introduction of 3.0L EcoDiesel V6 engine option (specific markets), minor cosmetic updates, improved interior materials.

Manufacturing Plant:

Toledo Complex, Toledo, Ohio, USA

🏆 Awards & Recognition

Kl Vehicle Awards General:

The Jeep Wrangler (JK generation) has consistently been a segment leader in off-road capability and has won numerous awards from off-road publications and enthusiasts.