🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Year:

1994

Chassis Code:

YJ

👋 Introduction

Market Position:

The Jeep Wrangler YJ is a legendary off-road vehicle known for its ruggedness and go-anywhere capability, appealing to outdoor enthusiasts and off-road adventurers.

Competitive Analysis:

Competed primarily against other compact SUVs and off-road focused vehicles, but its distinct Jeep heritage and solid axle design set it apart.

Key Features:

Solid front and rear axles, leaf spring suspension, iconic Jeep styling, removable doors and top.

Body Styles:

2-Door Convertible (standard for YJ), 2-Door Hardtop available.

📋 Manual Details

Manual Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

PDF

Accessibility:

Instant Download

Page Count:

Detailed page count not specified, but factory manuals are typically extensive (often 1000+ pages).

📖 Manual Coverage

Engine:

2.5L AMC I4, 4.0L AMC I6 Engine Overhaul, Diagnostics, and Repair

Transmission:

AX-5 5-Speed Manual, AX-15 5-Speed Manual, AW4 4-Speed Automatic Transmission Service and Repair

Drivetrain:

Transfer Case (NP231, NP242), Front Axle (Dana 30), Rear Axle (Dana 35C) Service, Differential Repair, Driveshaft Maintenance

Suspension:

Leaf Spring Suspension System, Shock Absorbers, Ball Joints, Wheel Bearings Service and Replacement

Brakes:

Front Disc Brakes, Rear Drum Brakes, Parking Brake System Diagnostics and Repair

Electrical:

Wiring Diagrams, Lighting System, Ignition System, Charging System, Starting System, Fuses, Relays, ECU Diagnostics

Steering:

Power Steering System, Steering Gearbox, Tie Rods, Drag Links Service

Fuel System:

Fuel Tank, Fuel Pump, Fuel Injectors, Fuel Filter Replacement and Diagnostics

Cooling System:

Radiator, Water Pump, Thermostat, Coolant Flush and Replacement

Exhaust System:

Exhaust Manifold, Catalytic Converter, Muffler, Tailpipe Replacement

Body And Frame:

Body Panel Repair, Door Mechanisms, Seat Adjustments, Frame Inspection

HVAC:

Heating, Ventilation, and Air Conditioning System Service and Recharge

Chassis And Frame:

Frame inspection, repair, and modification guidelines. Suspension and steering linkages.

Instrumentation:

Dashboard, gauges, warning lights, and interior trim diagnostics.

Lighting:

Headlights, taillights, turn signals, interior lighting diagnostics and repair.

Climate Control:

Heater core, blower motor, A/C compressor, refrigerant system service.

Maintenance:

Scheduled Maintenance, Oil Changes, Filter Replacements, Lubrication Services

Troubleshooting:

Diagnostic Flowcharts, Symptom-Based Troubleshooting Guides, Common Fault Finding

Repair:

Component Removal and Installation, Major Component Rebuilds, Minor Adjustments

Diagnostics:

Engine Performance Diagnostics, Emission Control System Checks, Electrical System Testing

Specifications:

Torque Specifications, Clearances, Fluid Capacities, Electrical Resistances

Emission Control:

Emission control systems diagnostics and repair, including catalytic converter and oxygen sensors.

Body Repair:

Detailed procedures for body panel alignment, repair of common rust areas, and adjustment of doors, hood, and tailgate.

Wheel Alignment:

Wheel alignment specifications and procedures.

Tire Rotation:

Tire rotation recommendations and procedures.

Engine Tuning:

Basic engine tuning procedures, idle speed adjustment, timing checks (where applicable).

Depth:

Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts.

Technical Depth Detail:

Includes detailed step-by-step repair instructions, exploded views, diagnostic trouble codes (DTCs), and wiring schematics.

Wiring Diagrams:

Comprehensive, system-specific wiring diagrams included for all electrical components.

📊 Manual Specifications

File Format:

PDF

Searchability:

Fully searchable text content for quick information retrieval.

Print Quality:

High-resolution, printable pages for convenient workshop use.

Binding Type:

N/A (Digital PDF download)

Paper Type:

N/A (Digital PDF download)

Completeness:

Complete factory coverage for all systems and procedures relevant to the 1994 Jeep Wrangler YJ.

⚙️ Engine Specifications

Engine 1:

2.5L (150 cu in) AMC I4 (Power Tech)

Engine 1 Hp:

125 hp @ 4400 rpm

Engine 1 Torque:

190 lb-ft @ 2000 rpm

Engine 2:

4.0L (242 cu in) AMC I6 (High Output)

Engine 2 Hp:

182 hp @ 4600 rpm

Engine 2 Torque:

220 lb-ft @ 3000 rpm

Fuel System:

Multi-port Fuel Injection (MPI)

Engine 1 Code:

2.5L AMC I4

Engine 2 Code:

4.0L AMC I6

🔧 Transmission

Transmission 1:

AX-5 5-Speed Manual (with 2.5L I4)

Transmission 2:

AX-15 5-Speed Manual (with 4.0L I6)

Transmission 3:

AW4 4-Speed Automatic (with 4.0L I6)

Transfer Case Options:

New Process NP231 (Command-Trac) or NP242 (Selec-Trac)

📐 Dimensions

Wheelbase:

93.4 inches (2372 mm)

Length:

150.2 inches (3815 mm)

Width:

69.3 inches (1760 mm)

Height:

65.3 inches (1659 mm)

Curb Weight:

Approx. 3,000 - 3,300 lbs (1361 - 1497 kg)

🛡️ Safety Features

NHTSA Ratings:

Specific NHTSA ratings for 1994 YJ are not readily available or may vary. General safety features of the era should be considered.

Active Safety Features:

Four-wheel drive system.

Passive Safety Features:

Seat belts, roll bar integrated into windshield frame and B-pillars.

💡 Technology Features

Infotainment Features:

Basic AM/FM radio with cassette player, optional CD player. Analog gauges and controls.

Driver Assistance Features:

N/A (Minimal electronic driver aids for this era).

Connectivity Features:

N/A (No integrated Bluetooth or advanced connectivity).

🔧 Maintenance

Oil Change Interval:

Every 3,000 miles or 3 months (refer to manual for specific engine type and conditions).

Transmission Fluid Change:

Manual: Inspect annually. Automatic: Every 30,000 miles or 36 months (refer to manual).

Transfer Case Fluid Change:

Every 30,000 miles or 36 months.

Spark Plug Replacement:

Refer to manual for specific mileage, typically around 30,000 miles for standard plugs.

Air Filter Replacement:

Inspect every oil change, replace as needed (typically 15,000-30,000 miles).

Fuel Filter Replacement:

Typically every 30,000 miles.

Engine Oil:

API SG or SH, SAE 10W-30 (refer to manual for specific viscosity based on temperature).

Coolant:

Ethylene Glycol Antifreeze / Coolant, 50/50 mix with distilled water.

Transmission Fluid Manual:

AX-5: SAE 75W-90 GL-5. AX-15: SAE 75W-90 GL-5.

Transmission Fluid Automatic:

Chrysler ATF+3 (or equivalent specification).

Transfer Case Fluid:

NP231/NP242: Mopar ATF+3 or equivalent.

Differential Fluid:

API GL-5, SAE 75W-90 or 75W-140. Consider limited-slip additive if equipped.

Power Steering Fluid:

Chrysler Power Steering Fluid or equivalent.

Brake Fluid:

DOT 3.

Common Issues:

Leaf spring wear and breakage, rear main seal leaks (4.0L), cooling system leaks, rust on body and frame, aging rubber bushings.

📚 Vehicle History

Brand Heritage:

Jeep has a rich military heritage dating back to World War II, with continuous evolution into civilian off-road vehicles.

Model Evolution:

The YJ generation (1987-1995) marked a significant shift from the CJ series, introducing coil springs in the front (on some later models, though this manual covers leaf springs), and a more modern interior, while retaining the iconic Jeep look and solid axles.

Production Years:

1987-1995

Manufacturing Location:

Toledo, Ohio, USA