🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Product Name:

Jeep WRANGLER Complete Workshop Repair Manual 2004 Onward

Applicable Model Years:

2004 onwards

Chassis Codes:

JK (2007-2018), JL (2018 onwards)

👋 Introduction

Positioning:

The Jeep Wrangler is an iconic off-road focused SUV, known for its ruggedness, capability, and distinctive styling. This manual caters to owners and DIY enthusiasts looking to maintain and repair their vehicles.

Competitors:

While direct competitors in the pure off-road segment are few, its rugged nature places it against vehicles like the Toyota 4Runner, Ford Bronco (newer generations), and some highly capable off-road trims of other SUVs.

User Benefits:

Empowers owners to perform routine maintenance and complex repairs, saving on labor costs. Provides detailed step-by-step instructions and professional-level diagnostic information. Essential for maintaining the longevity and performance of the Wrangler.

Value:

This is a professional-grade workshop manual, offering the same in-depth technical information used by dealership technicians. It's designed to make repairs straightforward, even for complex systems, by providing clear instructions, diagrams, and specifications.

📋 Manual Details

Primary Coverage:

North America, Europe, Global Markets

Estimated Page Count:

Extensive (typically 2000+ pages for comprehensive workshop manuals)

Type:

Workshop Repair Manual / Service Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system, powertrain control modules (PCM).

Transmission:

Manual transmissions (NV3550, NSG370), Automatic transmissions (42RLE, 850RE, 8HP75), transfer cases (NV241, NV241OR, NP241J, BW4485, etc.), clutch system, driveline components (axles, driveshafts, U-joints).

Chassis & Suspension:

Front and rear suspension (solid axles, coil springs, control arms, track bars), steering system (power steering, steering linkage), braking system (ABS, ESC, brake calipers, rotors, pads, hydraulic lines), wheel hub and bearing assemblies.

Electrical System:

Battery, charging system (alternator), starting system (starter motor), lighting system (headlights, taillights, interior), body control module (BCM), fuse box locations and descriptions, wiring diagrams, diagnostic trouble codes (DTCs).

Body & Interior:

Body panels, doors, hood, tailgate, convertible top systems, interior trim, seating, HVAC system, dashboard, instrumentation, airbags, body seals.

Maintenance:

Oil changes, filter replacements, fluid checks and changes (coolant, brake fluid, power steering fluid, transmission fluid, differential fluid), spark plug replacement, belt replacement, tire rotation and balancing.

Repair & Rebuild:

Engine overhaul, transmission overhaul, differential rebuild, brake system repair, suspension component replacement, electrical component diagnosis and repair, body panel repair, convertible top mechanism repair.

Diagnostics:

Troubleshooting guides based on symptoms, diagnostic trouble code (DTC) explanations and resolution steps, electrical system testing procedures, mechanical component testing.

Specifications & Data:

Torque specifications for all fasteners, fluid capacities and types, electrical component resistance and voltage values, engine timing specifications, alignment specifications.

Depth:

Comprehensive, from basic preventative maintenance to full engine and transmission rebuilds. Includes detailed diagnostic procedures and component-level repair.

📊 Manual Specifications

Format:

PDF (Portable Document Format)

Searchability:

Searchable text for quick information retrieval.

Quality:

High-resolution images, diagrams, and text for clear viewing on all devices and for printing.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Jk 3.8L V6:

3.8L (3778cc) OHV V6 (2007-2011). Power: 202 hp @ 5200 rpm. Torque: 237 lb-ft @ 4000 rpm.

Engine Jk 3.6L Pentastar V6:

3.6L (3604cc) Pentastar V6 (2012-2018). Power: 285 hp @ 6400 rpm. Torque: 260 lb-ft @ 4800 rpm.

Engine Jl 3.6L Pentastar V6:

3.6L (3604cc) Pentastar V6 with eTorque (2018+). Power: 285 hp @ 6400 rpm. Torque: 260 lb-ft @ 4800 rpm.

Engine Jl 2.0L Turbo I4:

2.0L (1995cc) Turbocharged Inline-4 with eTorque (2018+). Power: 270 hp @ 5250 rpm. Torque: 295 lb-ft @ 3000 rpm.

Engine Jl 3.0L Eco Diesel V6:

3.0L EcoDiesel V6 (2020+). Power: 260 hp @ 3600 rpm. Torque: 442 lb-ft @ 1400 rpm.

Fuel Delivery:

Multi-port Fuel Injection (MPI) for naturally aspirated engines, Direct Injection (GDI) for turbocharged engines.

ECM Type:

Chrysler's integrated powertrain control modules.

Block Material Pentastar:

Aluminum

Head Material Pentastar:

Aluminum

🔧 Transmission

Transmission Jk Standard:

6-speed manual (NSG370 or NV3550 depending on year/model).

Transmission Jk Optional:

4-speed automatic (42RLE).

Transmission Jl Standard:

6-speed manual (NSG370).

Transmission Jl Optional Gas:

8-speed automatic (850RE for 3.6L, 8HP75 for 2.0L Turbo).

Transmission Jl Optional Diesel:

8-speed automatic (8HP75) for EcoDiesel.

Transfer Case Jk:

Command-Trac (NV241G) or Rock-Trac (NV241OR).

Transfer Case Jl:

Selec-Trac Full-Time 4WD System (BW4485) or Rock-Trac Full-Time 4WD System.

Manual Transmission Fluid:

Chrysler MS-9224 (for NSG370), ATF+4 (for 42RLE), Mopar CVTF+4 (for BW4485 transfer case). Consult manual for exact specifications.

Automatic Transmission Fluid:

Mopar ATF+4 (42RLE), Mopar ZF 8-Speed Automatic Transmission Fluid (850RE/8HP75).

Clutch Type:

Dry single plate clutch with hydraulic actuation.

📐 Dimensions

Dimensions Jk 4Door:

Wheelbase: 116.0 inches. Length: 173.4 inches. Width: 73.7 inches. Height: 72.1 inches.

Dimensions Jl 4Door:

Wheelbase: 118.4 inches. Length: 182.8 inches. Width: 73.9 inches. Height: 73.6 inches.

Dimensions Jk 2Door:

Wheelbase: 95.4 inches. Length: 160.0 inches. Width: 73.7 inches. Height: 72.1 inches.

Dimensions Jl 2Door:

Wheelbase: 96.1 inches. Length: 166.5 inches. Width: 73.9 inches. Height: 73.6 inches.

Cargo Capacity Jk 4Door:

Behind rear seat: 31.5 cu ft. Max cargo: 70.6 cu ft.

Cargo Capacity Jl 4Door:

Behind rear seat: 31.7 cu ft. Max cargo: 72.4 cu ft.

Curb Weight Range:

Approximately 3,760 to 4,750 lbs depending on configuration.

Ground Clearance:

Typically 9.7 inches (Rubicon models often higher).

Angles:

Varies by model, but generally excellent off-road geometry. Example (JK Rubicon): Approach: 42.2°, Departure: 37.1°, Breakover: 25.5°.

🛡️ Safety Features

NHTSA Rating Jk:

Mixed; often 4-star for frontal impact, 3-star for rollover (due to high center of gravity inherent in design).

NHTSA Rating Jl:

Generally improved over JK, with higher ratings in some categories.

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control (TC), Electronic Stability Control (ESC), Trailer Sway Control (TSC). Available driver assistance features on later models (JL) include blind-spot monitoring, rear cross-traffic alert, forward collision warning, adaptive cruise control.

Passive Safety Features:

Front airbags, optional side curtain airbags (later models), advanced multi-stage airbag systems, body-on-frame construction, reinforced chassis for off-road durability.

Rollover Protection:

Integrated roll cage structure.

💡 Technology Features

Infotainment Jk:

Uconnect systems available, with touchscreen displays, satellite radio, and optional navigation. Basic AM/FM/CD players standard on lower trims.

Infotainment Jl:

Updated Uconnect systems with larger touchscreens (e.g., 7-inch, 8.4-inch), Apple CarPlay and Android Auto integration, available navigation, and premium audio options (e.g., Alpine).

Driver Assistance Jl:

Blind-spot monitoring, Rear Cross-Path detection, ParkSense Rear Park Assist, Forward Collision Warning with Active Braking, Adaptive Cruise Control (available on higher trims).

Connectivity Jl:

Integrated voice command, Bluetooth streaming audio, USB ports, optional Wi-Fi hotspot.

🔧 Maintenance

Oil Change Interval Jk 3.6L:

Every 10,000 miles or 12 months, whichever comes first (using synthetic oil), or as indicated by the oil change indicator system.

Oil Change Interval Jl 3.6L:

Every 10,000 miles or 12 months, whichever comes first (using synthetic oil), or as indicated by the oil change indicator system.

Oil Change Interval Jl 2.0T:

Every 10,000 miles or 12 months, whichever comes first (using synthetic oil), or as indicated by the oil change indicator system.

Engine Oil Specification:

SAE 5W-30 synthetic oil meeting Chrysler Material Standard MS-6395 (for 3.6L Pentastar and 3.0L EcoDiesel). SAE 0W-20 synthetic oil meeting MS-13340 for 2.0L Turbo.

Coolant Specification:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, 5-Year/100,000 Mile Formula (Orange).

Brake Fluid Specification:

DOT 3.

Power Steering Fluid Specification:

Mopar Power Steering Fluid or equivalent meeting Chrysler MS-11650. (Note: Some JL models have electric power steering and do not require fluid).

Common Issues Jk:

Death wobble (suspension alignment/component wear), water pump leaks, clutch wear (manual), PCM issues, exhaust manifold cracks (3.8L), steering stabilizer failure.

Common Issues Jl:

JL wake-up issues (software related), turbocharger concerns (2.0T), carbon buildup (2.0T), starter/alternator issues (eTorque system).

Tire Rotation Interval:

Every 6,000 miles or as part of oil change service.

📚 Vehicle History

Brand Heritage:

Jeep has a storied history dating back to World War II with the Willys MB. The Wrangler lineage directly follows the original Jeep CJ (Civilian Jeep) series, continuing the legacy of go-anywhere, do-anything vehicles.

Jk Generation Evolution:

Introduced for the 2007 model year, the JK generation marked a significant departure with a modern coil-spring suspension (replacing leaf springs), a unibody-like structure integrated with body-on-frame principles, and increased interior comfort. The 3.8L V6 was updated to the more powerful 3.6L Pentastar V6 in 2012.

Jl Generation Evolution:

Launched for the 2018 model year, the JL generation introduced a more aerodynamic design, lighter materials (including aluminum for doors, hood, and tailgate), a more refined interior, and new powertrain options like the 2.0L turbocharged engine and the EcoDiesel V6. It also adopted the ZF 8-speed automatic transmission across most variants.

Production Locations:

Toledo, Ohio, USA.

🏆 Awards & Recognition

Jk Awards:

Frequently recognized by automotive publications and off-road communities for its capability and iconic status. Awarded for 'Best Resale Value' in its segment by Kelley Blue Book at various times.

Jl Awards:

Earned numerous accolades since its launch, including 'MotorTrend SUV of the Year' (2019), 'North American SUV of the Year' (2019), and recognition for its advanced technology and improved efficiency.

Off Road Ratings:

Consistently rated as one of the most capable off-road vehicles available in its class, with excellent articulation, ground clearance, and 4x4 system performance, especially in Rubicon trims.