🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Model Code:

JK (for 2015-2018 models)

Years Covered:

2015, 2016, 2017, 2018

Engine Options Covered:

3.0L V6 Diesel, 3.6L V6 Pentastar

Chassis Codes:

JK

👋 Introduction

Vehicle Segment:

Compact/Mid-size SUV (Off-Road Focused)

Key Selling Points:

Exceptional off-road capability, iconic design, open-air driving experience, robust build.

Primary Competitors:

Toyota 4Runner, Ford Bronco (later generations), Land Rover Defender (in spirit).

Chassis Design:

Body-on-frame construction for durability and off-road articulation.

Powertrain Options:

Choice between fuel-efficient diesel and powerful gasoline V6 engines.

Off Road Systems:

Command-Trac (standard) and Rock-Trac (optional) 4x4 systems, available locking differentials, electronic sway bar disconnect.

📋 Manual Details

Documentation Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

PDF Download

Manual Type:

Comprehensive Service and Repair Manual

File Access:

Instant Download, No Expiry

Target Audience:

Professional Technicians and Enthusiast Owners

📖 Manual Coverage

Engine Mechanical:

Complete overhaul and repair procedures for 3.0L EcoDiesel and 3.6L Pentastar V6 engines.

Engine Electrical:

Ignition system, fuel injection, emissions control, sensors, wiring diagrams.

Transmission Manual:

Service and repair for the NV3550 (if applicable for specific configurations) and other manual transmissions.

Transmission Automatic:

Service and repair for the 8-speed automatic transmission (e.g., 8HP70 for EcoDiesel, 850RE for Pentastar).

Drivetrain:

Front and rear axle assemblies, differentials, driveshafts, NV241OR transfer case.

Suspension System:

Front and rear suspension, shock absorbers, springs, control arms, steering knuckles.

Steering System:

Power steering system, steering column, steering linkage.

Brake System:

Front and rear brakes (disc), ABS, electronic brake force distribution (EBD), parking brake.

Electrical System:

Battery, charging system, starting system, lighting, power distribution, body control module (BCM).

HVAC System:

Air conditioning, heating, ventilation, climate control.

Body And Chassis:

Frame, body panels, doors, hood, fenders, interior trim, bumpers.

Restraints System:

Airbags, seat belts, SRS module.

Infotainment System:

Radio, navigation, Uconnect system (diagnostics and basic troubleshooting).

Maintenance:

Scheduled maintenance, oil changes, fluid replacements, filter replacements, tire rotation.

Diagnostics:

Troubleshooting charts, DTC (Diagnostic Trouble Code) interpretation, symptom-based diagnostics.

Repair:

Component removal and installation, sub-assembly repair, major system overhauls.

Rebuild:

Engine, transmission, and axle rebuild procedures.

Adjustment:

Wheel alignment, parking brake adjustment, clutch adjustment (if applicable).

Wiring Diagrams:

Detailed electrical schematics for all vehicle systems.

Specifications:

Torque specifications, tolerances, clearances for all components.

Diagnostic Tools:

Information on using Chrysler's diagnostic scan tools (e.g., WiTECH) and generic OBD-II readers.

Special Tools:

Identification and usage of specific Chrysler/Jeep special tools required for certain repairs.

Emissions Control:

Detailed explanations of emission control systems and their diagnostics.

Troubleshooting Flowcharts:

Logical step-by-step procedures for diagnosing common and complex issues.

Component Testing:

Methods for testing individual electrical and mechanical components.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text for quick information retrieval.

Printability:

Printable pages for workshop use.

Quality:

High-resolution scans of original factory documentation.

Binding Type Digital:

N/A (Digital Download)

Paper Type Digital:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Name 1:

3.6L Pentastar V6

Displacement 1:

3604 cc (220 cu in)

Configuration 1:

SOHC V6 with Variable Valve Timing (VVT)

Horsepower 1:

285 hp @ 6400 rpm (approximate)

Torque 1:

260 lb-ft @ 4800 rpm (approximate)

Engine Name 2:

3.0L EcoDiesel V6

Displacement 2:

2987 cc (182 cu in)

Configuration 2:

DOHC V6 Turbocharged Diesel with Common Rail Injection

Horsepower 2:

240 hp @ 3600 rpm (approximate)

Torque 2:

442 lb-ft @ 1600 rpm (approximate)

Fuel Type:

Unleaded Gasoline (3.6L), Diesel Fuel (3.0L)

Fuel Delivery 3.6L:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Delivery 3.0L:

Common Rail Direct Injection (CRDI)

Emissions Compliance:

Meets applicable EPA and CARB standards for the model years.

🔧 Transmission

Transmission Std 3.6L:

6-speed manual transmission (NSG370)

Transmission Std 3.0L:

8-speed automatic transmission (8HP70)

Transmission Opt 3.6L:

5-speed automatic transmission (W5A580), 8-speed automatic transmission (850RE)

Transfer Case:

NV241OR Off-Road transfer case with 4:1 low range ratio.

Auto Trans Fluid 8Spd:

Mopar ATF+4 or equivalent (refer to specific model VIN for exact type, typically ZF Lifeguard fluid).

Manual Trans Fluid:

Mopar Manual Transmission Lubricant or equivalent SAE 75W-90 synthetic.

Transfer Case Fluid:

Mopar NV241 Transfer Case Lubricant or equivalent SAE 75W-90 synthetic.

📐 Dimensions

Wheelbase 2Dr:

96.1 inches (2441 mm)

Wheelbase 4Dr:

116.0 inches (2946 mm)

Length 2Dr:

160.0 inches (4064 mm)

Length 4Dr:

184.6 inches (4689 mm)

Width Excluding Mirrors:

73.7 inches (1872 mm)

Height:

72.5 inches (1841 mm) (approximate, varies with tire size/suspension)

Cargo Volume Behind Rear Seat 2Dr:

9.8 cu ft (277 L)

Cargo Volume Behind Rear Seat 4Dr:

31.5 cu ft (892 L)

Curb Weight Base 2Dr:

4,159 lbs (1886 kg)

Curb Weight Base 4Dr:

4,535 lbs (2057 kg)

Max Towing Capacity:

2,000 lbs (907 kg) for 2-door, 3,500 lbs (1588 kg) for 4-door (with appropriate equipment).

Standard Wheel Size:

17-inch

Standard Tire Size:

245/75R17 (examples: BFGoodrich Mud-Terrain T/A KM2, Goodyear Wrangler MT/R).

Bolt Pattern:

5x5 inches (127 mm)

🛡️ Safety Features

NHTSA Overall Rating:

Typically 4 out of 5 stars (varies by year and configuration, consult specific reports).

IIHS Ratings:

Good in frontal offset, side impact, roof strength tests (varies by specific tests and year).

Electronic Stability Control:

Standard on all models, includes traction control and electronic roll mitigation.

Anti Lock Brakes:

Standard 4-wheel disc ABS.

Hill Start Assist:

Standard for both manual and automatic transmissions.

Hill Descent Control:

Available on some models.

Airbags:

Frontal airbags, side curtain airbags (available on 4-door models).

Seat Belts:

3-point seat belts with pretensioners.

Rollover Protection:

Reinforced sport cage with structural support for occupant safety in rollovers.

💡 Technology Features

Uconnect System:

Uconnect touchscreen infotainment system with available navigation, SiriusXM Satellite Radio, and Bluetooth connectivity.

Connectivity Ports:

USB ports, Auxiliary audio input.

Parking Assist:

Available ParkSense rear park assist system.

Backup Camera:

Optional ParkView rear backup camera.

Voice Command:

Uconnect Voice Command for hands-free calling and music control.

🔧 Maintenance

Oil Change Interval 3.6L:

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

Oil Change Interval 3.0L:

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

Engine Air Filter Replacement:

Inspect every 15,000 miles, replace as needed or every 30,000 miles.

Cabin Air Filter Replacement:

Replace every 15,000-20,000 miles or annually.

Transmission Fluid Change Auto:

Inspect every 30,000 miles, replace as per severe duty schedule (e.g., towing, off-roading) or every 60,000-100,000 miles depending on fluid type and conditions.

Transmission Fluid Change Manual:

Inspect as needed, typically replace every 60,000-100,000 miles.

Engine Oil 3.6L:

SAE 0W-20 Synthetic (API SN or dexos1 certified)

Engine Oil 3.0L:

SAE 5W-30 Synthetic Diesel Engine Oil (API CJ-4 or CK-4 compliant, ACEA C3 or C4).

Coolant:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, Pink (Chrysler MS-12106) - 50/50 mix with distilled water.

Brake Fluid:

DOT 3 or DOT 4.

Clutch Wear Manual:

Occasional premature clutch wear on manual transmission models, especially with heavy off-road use or aggressive driving.

Pentastar Oil Leaks:

Potential for oil leaks from the oil filter housing or valve cover gaskets.

Ecodiesel Emisiones Issues:

Some EcoDiesel models may face emissions system issues (e.g., DEF injector, EGR valve) depending on specific model year and recall status. Regular software updates are crucial.

Water Pump 3.6L:

Some reports of water pump leaks or failures, often around the 60,000-80,000 mile mark.

Evap Canister Vent Solenoid:

Can sometimes cause Check Engine Light due to fuel vapor system leaks.

📚 Vehicle History

Jeep Legacy:

Jeep's lineage traces back to WWII military vehicles, known for ruggedness and off-road prowess.

Wrangler Jk Introduction:

The JK generation replaced the TJ in 2007, introducing a longer wheelbase (4-door Unlimited model) and modern amenities while retaining core Jeep DNA.

Jk Facelift 2011:

Significant update with improved interior quality, refined powertrains, and enhanced features.

Jk Facelift 2015:

Further interior and exterior styling updates, introduction of the 8-speed automatic transmission option for the 3.6L Pentastar.

Assembly Location:

Toledo, Ohio, USA

Production Span Jk:

2007-2018

🏆 Awards & Recognition

Four Wheeler Pickup Truck Of The Year:

Jeep Wrangler JK models have frequently been recognized by off-road publications like Four Wheeler Magazine, often winning 'Pickup Truck of the Year' or similar awards due to their off-road capability.

Motor Trend Truck Of The Year:

While not a truck, the Wrangler's off-road dominance often leads to comparisons and accolades in the broader utility vehicle categories.

Kbb Best Resale Value:

Jeep Wranglers are consistently ranked among vehicles with the best resale value in their class.

Emissions Certification:

All models certified to meet US federal emissions standards for the respective model years.