🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

1994

Chassis Code:

ZJ

👋 Introduction

Vehicle Segment:

Mid-size Luxury SUV

Target Audience:

Families, off-road enthusiasts, luxury SUV buyers.

Key Competitors 1994:

Ford Explorer, Chevrolet Blazer/Tahoe, Toyota 4Runner, Nissan Pathfinder.

Body Style Options:

4-door SUV

Powertrain Options:

Available with 2WD and 4WD (4x4) configurations.

Interior Appointments:

Offered with comfortable seating and a range of luxury amenities for its era.

Off Road Capability:

Renowned for its robust chassis, available 4x4 systems, and respectable ground clearance.

📋 Manual Details

Manual Type:

Repair Service Manual

Language:

English

Format:

PDF Download

Prepared For:

Professional Technicians and Enthusiasts

📖 Manual Coverage

Engine Mechanical:

Complete engine overhaul, diagnostics, tuning, component replacement (pistons, rings, bearings, valves, camshaft, crankshaft).

Engine Fuel System:

Fuel injection system diagnostics and repair, fuel pump, injectors, fuel pressure regulator, fuel filter replacement.

Engine Ignition System:

Ignition system components (spark plugs, wires, coil, distributor), timing adjustments, diagnostic procedures.

Engine Cooling System:

Radiator, water pump, thermostat, coolant hoses, fan, cooling system pressure testing.

Engine Lubrication System:

Oil pump, oil pan, oil filter, lubrication circuit diagnostics.

Transmission Automatic:

Overhaul, diagnostics, fluid and filter change, torque converter, valve body, transmission control module (TCM) troubleshooting.

Transmission Manual:

Clutch system, gearbox overhaul, fluid replacement, shift mechanism diagnostics.

Transfer Case:

NV242 Selec-Trac and NV249 Quadra-Trac II system diagnostics, repair, and fluid specifications.

Drive Axles Differentials:

Front and rear axle assemblies, differential overhaul, axle shaft replacement, fluid specifications.

Suspension System:

Front and rear suspension components (control arms, ball joints, tie rods, springs, shock absorbers), alignment procedures.

Steering System:

Power steering pump, steering gear, steering column, tie rods, troubleshooting.

Brake System:

Front and rear brake systems (discs, calipers, pads, rotors), ABS diagnostics and repair, brake fluid specifications.

Electrical System:

Battery, charging system, starter, lighting, wipers, horn, power accessories.

Powertrain Control Module PCM:

PCM diagnostics, wiring diagrams, sensor inputs and outputs.

Body And Frame:

Body panel repair, door mechanisms, glass replacement, interior trim, chassis repair procedures.

HVAC System:

Air conditioning and heating system diagnostics, refrigerant service, blower motor, climate controls.

Restraint Systems:

Airbag system diagnostics and component replacement (precautionary measures emphasized).

Scheduled Maintenance:

Detailed maintenance schedules for oil changes, filter replacements, fluid checks, and inspections.

Troubleshooting Guides:

Systematic troubleshooting procedures for common and uncommon issues, diagnostic flowcharts.

Diagnostic Procedures:

Step-by-step diagnostic routines for electrical, mechanical, and powertrain problems.

Component Replacement:

Instructions for replacing virtually all mechanical and electrical components.

Repair And Overhaul:

Complete instructions for rebuilding engines, transmissions, axles, and other major assemblies.

Technical Specifications Tables:

Torque specifications, clearances, fluid capacities, wiring diagrams, schematics.

Depth Level:

Comprehensive, from basic maintenance to complete vehicle rebuilds and advanced diagnostics.

Diagrams And Illustrations:

Extensive use of diagrams, exploded views, and schematics to illustrate procedures and components.

Wiring Diagrams:

Detailed electrical wiring diagrams for all vehicle systems.

📊 Manual Specifications

Format Type:

Digital PDF

Searchable Text:

Yes (typically)

Printable:

Yes

Image Resolution:

High resolution, suitable for clear viewing of diagrams and text.

Binding Type Digital:

N/A (Digital Download)

Paper Type Digital:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Code 1:

4.0L I6 (242 ci) "High Output"

Engine Family 1:

AMC 242 Straight-6

Horsepower 1:

180 hp @ 4,500 rpm

Torque 1:

220 lb-ft @ 2,500 rpm

Fuel Delivery 1:

Multi-port Fuel Injection (MPI)

Bore Stroke 1:

3.878 in x 3.578 in (98.5 mm x 90.9 mm)

Compression Ratio 1:

8.7:1

Engine Code 2:

5.2L V8 (318 ci) "Magnum"

Engine Family 2:

Chrysler LA Series V8

Horsepower 2:

220 hp @ 4,400 rpm

Torque 2:

285 lb-ft @ 2,400 rpm

Fuel Delivery 2:

Multi-port Fuel Injection (MPI)

Bore Stroke 2:

3.91 in x 3.57 in (99.3 mm x 90.6 mm)

Compression Ratio 2:

8.1:1

Fuel Type:

Unleaded Gasoline

🔧 Transmission

Transmission Type Std:

4-speed Automatic (42RE)

Transmission Type Opt:

5-speed Manual (AX-15) - less common, primarily with 4.0L

Automatic Transmission Fluid Type:

ATF+4 (or equivalent specification)

Manual Transmission Fluid Type:

GL-3 or GL-4 gear oil (check manual for specific viscosity)

📐 Dimensions

Wheelbase:

108.7 inches (2761 mm)

Length:

177.1 inches (4498 mm)

Width:

71.2 inches (1808 mm)

Height:

66.4 inches (1687 mm)

Curb Weight Min:

approx. 3900 lbs (1769 kg) for 4.0L 2WD

Curb Weight Max:

approx. 4300 lbs (1950 kg) for 5.2L 4WD

Gross Vehicle Weight Rating Gvwr:

approx. 5500-5800 lbs (2495-2631 kg)

Towing Capacity:

Up to 5000 lbs (2268 kg) depending on engine and configuration

🛡️ Safety Features

NHTSA Frontal Impact Driver:

Not rated or limited data for this specific year.

NHTSA Frontal Impact Passenger:

Not rated or limited data for this specific year.

Anti Lock Brakes ABS:

Standard on most models, optional on some base trims.

Airbags:

Driver and front passenger airbags standard.

Seatbelts:

Front and rear seat belts with pretensioners for front occupants.

💡 Technology Features

Audio System:

Factory AM/FM stereo with cassette player, optional CD player, and premium Infinity speaker system available.

Climate Control:

Manual climate control standard, optional automatic climate control.

Cruise Control:

Standard on most models.

Connectivity Features:

Limited by era; primarily focused on in-car comfort and entertainment.

🔧 Maintenance

Oil Change Interval:

Every 3,000 miles or 3 months (typical recommendation for the era).

Transmission Fluid Change Interval:

Every 30,000 miles or 30 months (automatic transmission).

Transfer Case Fluid Change Interval:

Every 30,000 miles or 30 months.

Coolant Change Interval:

Every 30,000 miles or 30 months.

Engine Oil Type 4.0L:

API SG or SH, SAE 10W-30

Engine Oil Type 5.2L:

API SG or SH, SAE 5W-30 or 10W-30 (depending on climate)

Engine Oil Capacity 4.0L:

5 quarts (4.7 L) with filter

Engine Oil Capacity 5.2L:

5 quarts (4.7 L) with filter

Power Steering Fluid:

Mopar Power Steering Fluid or ATF+4 equivalent

Brake Fluid Type:

DOT 3

Common Issue 1:

Head gasket leaks (especially on 4.0L, but also possible on V8).

Common Issue 2:

Cracked cylinder heads (4.0L I6 '94-'95 models are prone).

Common Issue 3:

Leaking rear main crankshaft seal.

Common Issue 4:

Transmission solenoid issues or premature failure (42RE).

Common Issue 5:

Chrysler's infamous 'death wobble' or steering shimmy, often related to worn suspension components.

Common Issue 6:

Electrical gremlins, particularly with door lock actuators and power windows.

Common Issue 7:

Cooling system leaks (radiator, hoses, water pump).

📚 Vehicle History

Jeep Heritage Overview:

Jeep has a long-standing reputation for off-road capability and ruggedness, originating from its military roots in WWII.

Zj Generation Introduction:

The ZJ Grand Cherokee was introduced for the 1993 model year, representing Jeep's first unibody SUV designed for the premium market.

Zj Generation Period:

1993-1998

Key Changes 1994:

The 1994 model year saw minor updates, including some refinements to interior features and options, and slight powertrain adjustments for emissions and refinement.

Assembly Location:

Jefferson North Assembly, Detroit, Michigan, USA.

🏆 Awards & Recognition

Awards And Accolades:

While specific awards for the 1994 model might be scarce, the ZJ Grand Cherokee was generally well-received for its blend of on-road comfort and off-road prowess, often cited in automotive media for its luxury and capability in the SUV segment of its time.