Target Audience:
DIY mechanics, independent repair shops, Jeep enthusiasts
Value Proposition:
Provides same level of detail as official dealer manuals at a fraction of the cost, empowering owners for self-service.
Completeness:
Complete coverage of all workshop procedures for the 2002 Jeep Grand Cherokee WJ.
Ease Of Use:
Step-by-step instructions and clear diagrams designed for ease of understanding by various skill levels.
Engine Mechanical:
Engine overhaul, rebuild, timing, lubrication, cooling
Engine Management:
Fuel injection, ignition system, emission control, sensors, actuators
Transmission:
Manual and automatic transmission overhaul, diagnostics, fluid services
Drivetrain:
Transfer case, differentials, axles, driveshafts, U-joints
Suspension:
Front and rear suspension components, alignment, springs, shocks, bushings
Steering:
Steering gear, power steering system, linkages, alignment
Braking System:
Hydraulic system, ABS, brake calipers, rotors, pads, parking brake
Electrical System:
Wiring diagrams, charging system, starting system, lighting, accessories, body electricals
HVAC:
Air conditioning system, heating, ventilation, climate control
Bodywork:
Body panels, doors, windows, interior trim, bumpers, paint and rust prevention
Wheels And Tires:
Tire specifications, wheel torque, rotation, balancing
Maintenance:
Scheduled maintenance, oil changes, filter replacements, tune-ups
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnosis
Repair Procedures:
Component replacement, rebuilding procedures (engine, transmission), adjustments
Installation:
Installation procedures for common accessories and replacement parts
Torque Settings:
Specific torque values for all critical fasteners
Fluid Capacities:
Detailed capacities for all vehicle fluids (engine oil, coolant, transmission fluid, brake fluid, etc.)
Depth Of Coverage:
Comprehensive (from basic maintenance to full engine and transmission rebuilds)
Diagrams Illustrations:
Detailed step-by-step diagrams, exploded views, wiring schematics
Spare Parts Illustrations:
Includes illustrations of spare parts and their assembly
NHTSA Frontal Impact Driver:
4 Stars (for 2002 model year)
NHTSA Frontal Impact Passenger:
4 Stars (for 2002 model year)
IIHS Front Offset Crash Rating:
Good (for 2002 model year)
ABS:
Standard (Anti-lock Braking System)
Traction Control:
Optional (likely part of Selec-Trac or Quadra-Drive II systems)
Airbags:
Standard front airbags for driver and passenger; optional side airbags
Oil Change Interval:
Every 5,000 - 7,500 miles or 6 months, whichever comes first (using recommended oil type).
Air Filter Replacement:
Every 15,000 - 30,000 miles or as needed based on driving conditions.
Spark Plug Replacement:
4.0L: Approx. 100,000 miles; 4.7L: Approx. 60,000-100,000 miles (depending on plug type).
Engine Oil Type 4.0L:
API SJ or higher, SAE 10W-30 (check manual for specific viscosity based on temperature)
Engine Oil Type 4.7L:
API SJ or higher, SAE 5W-30 (check manual for specific viscosity based on temperature)
Automatic Transmission Fluid:
ATF+4 (Mopar)
Coolant Type:
Chrysler HOAT (Hybrid Organic Acid Technology) coolant (Orange)
Common Issues 4.0L:
Cracked cylinder heads (pre-2000 models, less common in WJ), exhaust manifold leaks, death wobble (steering stabilizer/bushings).
Common Issues 4.7L:
Head gasket failures, intake manifold gasket leaks, oil sludge buildup if maintenance is neglected.
Common Issues Transmission:
Torque converter shudder, solenoid pack failure in automatic transmissions.
Common Issues Electrical:
Window regulator failures, HVAC blower motor issues, instrument cluster problems.
