🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation:

WJ

Year:

1992

Chassis Code:

WJ

👋 Introduction

Vehicle Segment:

Mid-size Luxury SUV

Target Audience:

Families, outdoor enthusiasts, those seeking comfort and capability in an SUV.

Key Competitors:

Ford Explorer, Chevrolet Blazer, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery.

Vehicle Strengths:

Robust chassis, capable four-wheel-drive systems (Quadra-Trac II, Quadra-Drive), comfortable ride, powerful engine options, spacious interior.

Manual Value Proposition:

Provides dealership-level diagnostic and repair procedures, empowering owners and independent shops to maintain and repair the vehicle accurately and efficiently, saving on labor costs.

📋 Manual Details

Manual Type:

Factory Service Manual / Workshop Manual

Language:

English

Format:

Digital (PDF) - Implied by product description, typically sold digitally

Estimated Page Count:

1500+

Manual Purpose:

Comprehensive repair, maintenance, and diagnostic information for dealership technicians and advanced DIY enthusiasts.

📖 Manual Coverage

Engine:

4.0L Inline-6 (242ci) 'Power Tech' I6, 4.7L V8 (285ci) 'PowerTech' V8 - Detailed diagnostics, repair, overhaul, and component specifications.

Transmission:

42RE (4-speed Automatic), NV242 (Selec-Trac NV247/NV245 if applicable for year), NV231 (Command-Trac NV231J if applicable for year) - Overhaul, diagnostics, fluid specifications, and shift control.

Drivetrain:

Front Axle, Rear Axle (Dana 30, Dana 35, Chrysler 8.25 - specific to trim/engine), Transfer Case - Gear ratios, lubrication, bearing preloads, seal replacement, driveline angles.

Brakes:

Front Disc (Solid or Vented), Rear Disc - Hydraulic system, ABS, brake rotor/pad replacement, caliper overhaul, parking brake adjustments, bleeding procedures.

Suspension:

Front (Solid Live Axle with Coil Springs and Track Bar or Independent Front Suspension on some later models - clarify for WJ), Rear (Multi-link solid axle with coil springs and track bar) - Component replacement (shocks, springs, bushings, ball joints, steering components), alignment specifications.

Steering:

Power Steering System, Steering Gear/Box - Fluid types, pressure testing, component replacement, steering column service.

Cooling System:

Radiator, Water Pump, Thermostat, Fan Clutch/Electric Fan - Coolant specifications, flush procedures, leak testing, component replacement.

Fuel System:

Fuel Pump, Injectors, Fuel Filter, Fuel Tank - Pressure testing, component replacement, diagnostic trouble codes (DTCs) related to fuel delivery.

Electrical System:

Battery, Alternator, Starter Motor, Wiring Diagrams, Fuses, Relays, Lighting, Ignition System - Component testing, circuit diagnosis, wiring harness repair.

Climate Control:

HVAC System (A/C, Heater) - Refrigerant handling, compressor, evaporator, heater core, blower motor, blend door actuators, diagnostic procedures.

Body And Chassis:

Body Panels, Doors, Windows, Seats, Trim, Chassis Components - Repair procedures, panel replacement, glass installation, interior trim removal.

Body Electrical:

Power Windows, Power Locks, Remote Keyless Entry, Interior/Exterior Lighting, Wiper Systems - Diagnostic strategies for body control modules (BCM).

Maintenance:

Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid changes, air filter replacement, differential fluid changes, transfer case fluid changes.

Troubleshooting:

Systematic diagnostic flowcharts for common and uncommon problems, diagnostic trouble code (DTC) interpretation and resolution.

Repair:

Engine component replacement (heads, short block, manifolds), transmission overhaul, axle rebuilds, brake system repairs, suspension component replacement, steering system service, HVAC system repairs, electrical component replacement.

Installation:

Component installation, accessory installation (if covered by factory specs), sensor replacement.

Diagnostics:

On-board diagnostics (OBD-I/OBD-II), diagnostic scan tool usage, component testing procedures (resistance, voltage, amperage).

Depth:

Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds, including detailed schematics, torque specifications, and diagnostic procedures.

📊 Manual Specifications

Digital Format:

PDF

Searchability:

Searchable text (typical for professionally produced PDFs).

Print Quality:

High-resolution scans suitable for printing individual sections or the entire manual.

Digital Binding:

N/A (Digital format)

Digital Paper Type:

N/A (Digital format)

Content Scope:

Complete official factory service manual, identical to what dealers use.

⚙️ Engine Specifications

Engine 1 Displacement:

4.0 Liters (242 cubic inches)

Engine 1 Configuration:

Inline-6 (I6)

Engine 1 Valvetrain:

Overhead Valve (OHV), 2 valves per cylinder

Engine 1 Horsepower:

Approx. 190 hp @ 4600 rpm

Engine 1 Torque:

Approx. 225 lb-ft @ 3200 rpm

Engine 2 Displacement:

4.7 Liters (285 cubic inches)

Engine 2 Configuration:

V8

Engine 2 Valvetrain:

Overhead Valve (OHV), 2 valves per cylinder

Engine 2 Horsepower:

Approx. 220-230 hp @ 4700 rpm

Engine 2 Torque:

Approx. 280-300 lb-ft @ 3200 rpm

Fuel Delivery:

Multi-port Electronic Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

Ignition System:

Distributorless Ignition System (DIS) for 4.0L, Distributor ignition for 4.7L

Emissions Control:

Catalytic Converter, EGR (Exhaust Gas Recirculation)

🔧 Transmission

Transmission Type Standard:

4-Speed Automatic (42RE)

Transmission Type Optional:

None typically, but 4-speed auto was standard across trims.

Transfer Case Options:

Selec-Trac (NV242), Quadra-Trac II (NV247), Quadra-Drive (NV247 with Vari-Lok differentials) - Depending on trim and year.

Transmission Fluid Type:

ATF+4 (or equivalent for 42RE, consult manual for precise spec)

📐 Dimensions

Wheelbase:

116.0 inches (2946 mm)

Length:

186.7 inches (4742 mm)

Width:

73.3 inches (1862 mm)

Height:

67.7 inches (1719 mm)

Passenger Volume:

Approx. 104.7 cubic feet (2965 L)

Cargo Volume Rear Seat Up:

Approx. 37.2 cubic feet (1053 L)

Cargo Volume Rear Seat Down:

Approx. 71.7 cubic feet (2030 L)

Curb Weight:

Approx. 4400-4700 lbs (2000-2130 kg), varies by engine and drivetrain

Gross Vehicle Weight Rating:

Approx. 5800-6000 lbs (2630-2720 kg)

Towing Capacity:

Up to 6500 lbs (2950 kg) with optional towing package

🛡️ Safety Features

NHTSA Front Impact:

Not readily available for this specific model year vintage in a standardized format comparable to modern ratings.

IIHS Crash Test Results:

Not readily available for this specific model year vintage in a standardized format comparable to modern ratings.

ABS:

Standard (Anti-lock Braking System)

Airbags:

Driver and Passenger Frontal Airbags

Seatbelts:

3-point front and rear seat belts

💡 Technology Features

Audio System:

AM/FM Radio, Cassette Player, Optional CD Player (premium sound systems available)

Cruise Control:

Standard

Cellular Connectivity:

N/A (No factory integrated cellular connectivity)

🔧 Maintenance

Oil Change Interval:

Every 3,000-7,500 miles (5,000-12,000 km) or 6 months, depending on driving conditions and oil type (consult manual for specific recommendation based on oil used).

Tire Rotation Interval:

Every 5,000-7,500 miles (8,000-12,000 km)

Transmission Fluid Change Interval:

Every 30,000-60,000 miles (48,000-96,000 km) or as per severe duty schedule. Filter replacement recommended.

Coolant Flush Interval:

Every 30,000 miles (48,000 km) or 2 years

Engine Oil Specification:

API SJ or higher, SAE 5W-30 or 10W-30 (refer to owner's manual for specific viscosity based on temperature)

Engine Oil Capacity:

4.0L I6: 6 US quarts (5.7 L) with filter; 4.7L V8: 7 US quarts (6.6 L) with filter.

Brake Fluid Specification:

DOT 3

Power Steering Fluid Specification:

ATF+3 or ATF+4 (refer to manual)

Common Problems:

Head gasket leaks (especially on early 4.0L), coolant leaks from radiator and heater core, power steering pump leaks, death wobble (front-end shimmy), transfer case chain stretch, interior electrical gremlins (window motors, locks), U-joint wear, differential seal leaks.

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for ruggedness, off-road capability, and durable SUVs since its inception in WWII.

Grand Cherokee History:

The Grand Cherokee was introduced in 1993 as a more luxurious and refined alternative to the Cherokee XJ. The WJ generation (1999-2004) represented a significant redesign focusing on improved on-road manners, a larger interior, and more upscale features, but this manual covers a 1992 model, implying a potential mislabeling or a very early production/prototype manual. *Correction: The WJ generation started in 1999. A 1992 Jeep Grand Cherokee would be of the ZJ generation. This manual is likely for the ZJ generation, not WJ, if the year is accurate. This analysis assumes the year is correct and the 'WJ' in the product name is a misnomer for the ZJ platform.*

Platform Code:

ZJ (for 1992 model)

Manufacturing Location:

Detroit, Michigan, USA

🏆 Awards & Recognition

Vehicle Awards:

While specific awards for the 1992 model are less documented than later iterations, the ZJ platform was recognized for its blend of luxury, capability, and on-road comfort, setting a new standard for American luxury SUVs. Often praised for its off-road prowess compared to competitors.