Segment:
Mid-size Luxury SUV
Target Audience:
Owners, DIY mechanics, professional service technicians
Competitors 1994:
Ford Explorer, Chevrolet Blazer, Toyota 4Runner, Range Rover Discovery
Vehicle Appeal:
Off-road capability, comfortable ride, luxurious interior for its class, V8 engine option
Benefit To Owner:
Empowers owners to perform routine maintenance, diagnose problems, and execute repairs, saving time and money.
Benefit To Technician:
Provides essential technical data, diagrams, and procedures for efficient and accurate service.
Primary Focus:
Service and Repair
Additional Coverage:
Body, Chassis, Electrical Systems, Wiring Diagrams
Estimated Pages:
Extensive (Typical workshop manuals for this era are 1000+ pages)
Type:
Workshop Manual / Service Shop Manual
Powertrain:
Engine mechanical, fuel system, cooling system, lubrication system, ignition system, exhaust system, engine control systems (ECU/PCM)
Drivetrain:
Transmission (automatic and manual, if applicable), transfer case, drivelines, axles, differentials
Chassis:
Suspension (front and rear), steering system, braking system (including ABS), wheels and tires
Electrical:
Full electrical system diagnostics, lighting, instruments, power accessories, comfort controls, engine management sensors, diagnostic trouble codes (DTCs)
Body:
Body panels, interior trim, doors, windows, glass, body sealing, collision repair basics
Maintenance:
Scheduled maintenance tasks, fluid changes, filter replacements, belt and hose inspection/replacement
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, component testing procedures, diagnostic trouble code interpretation
Repair:
Step-by-step repair procedures for major components, sub-assemblies, and specific systems
Disassembly Reassembly:
Detailed instructions for removing and installing engine, transmission, suspension components, interior parts, etc.
Wiring Diagrams:
Comprehensive, detailed wiring schematics for all electrical systems
Depth:
Comprehensive; covers everything from basic maintenance to complete engine and transmission overhauls, detailed electrical diagnostics
Diagnostics Level:
Advanced diagnostic procedures, including sensor testing, actuator testing, and troubleshooting complex electronic systems
Special Tools:
Identification of special tools required for specific repair procedures
Engine Code 1:
4.0L OHV V8 (VIN X)
Engine Code 2:
5.2L Magnum V8 (VIN Z)
Engine Code 3:
4.0L OHV I6 (VIN S) - Less common for ZJ in 1994, but possible based on some market variations
Horsepower 40L V8:
Approx. 184 hp @ 4500 rpm
Torque 40L V8:
Approx. 227 lb-ft @ 3200 rpm
Horsepower 52L V8:
Approx. 215 hp @ 4500 rpm
Torque 52L V8:
Approx. 295 lb-ft @ 3200 rpm
Fuel Delivery:
Multi-port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline (Octane rating as per manual recommendations)
Ignition Type:
Distributorless Ignition System (DIS) or Distributor-based ignition depending on specific engine configuration and market
Transmission Type:
42RE 4-Speed Automatic Transmission
Transmission Type Optional:
AX15 5-Speed Manual Transmission (Less common on ZJ Grand Cherokees, typically found in Cherokee XJ)
Transfer Case Std:
Selec-Trac (NV242) Full-Time 4WD
Transfer Case Opt:
Quadra-Trac (NV249) Full-Time 4WD with viscous coupling
Automatic Transmission Fluid:
ATF+3 (Chrysler specification, often equivalent to Dexron-III/Mercon)
NHTSA Rollover Rating 1994:
Four-star rating (as per NHTSA documentation for similar era vehicles)
ABS:
Anti-lock Braking System (ABS) standard on most trims
Airbags:
Driver-side airbag standard
Seatbelts:
Three-point seat belts with pretensioners
Oil Change Interval:
Every 3,000-5,000 miles or 3-6 months, depending on driving conditions (refer to manual for exact specs)
Engine Coolant Flush:
Every 30,000 miles or 2 years
Transmission Fluid Service:
Every 30,000-60,000 miles or as specified in the manual
Engine Oil Specification:
API SG or SH, SAE 5W-30 or 10W-30 (depending on ambient temperature, consult manual)
Engine Coolant Type:
Chrysler Long Life (Green) or equivalent HOAT coolant
Power Steering Fluid:
Mopar Power Steering Fluid or equivalent ATF+3
Common Problem 1:
Cooling system leaks (radiator, heater core, water pump)
Common Problem 2:
Transmission issues (slipping, harsh shifts, especially with 42RE)
Common Problem 3:
Cracked dashboards (UV damage)
Common Problem 4:
Transfer case chain stretch/wear (NV249)
Common Problem 5:
Power window regulators and motors
Jeep Legacy:
Rooted in robust off-road capability and ruggedness
Zj Generation:
First generation of the Grand Cherokee, introduced in 1993 as a 1993 model year.
1994 Updates:
Minor styling tweaks, introduction of the 5.2L Magnum V8 for broader availability, potential feature packaging changes.
Manufacturing Plant:
Jefferson North Assembly Plant, Detroit, Michigan
