Engine:
Complete diagnostics, repair, and overhaul procedures for all ZJ engine options
Fuel System:
Fuel injection system, fuel pump, injectors, fuel pressure regulator, fuel lines, EVAP system
Ignition System:
Ignition coil, spark plugs, distributor (if applicable), ignition control module
Cooling System:
Radiator, water pump, thermostat, hoses, fan clutch, coolant specifications
Exhaust System:
Exhaust manifolds, catalytic converter, muffler, pipes, emissions control
Transmission Manual:
Clutch operation, inspection, and replacement
Transmission Automatic:
Detailed repair and overhaul for all ZJ automatic transmissions (e.g., 42RE, 44RE, 46RE)
Drivetrain:
Transfer case operation, front and rear drive shafts, U-joints, axle assemblies, differentials
Suspension System:
Front and rear suspension components, control arms, coil springs, shock absorbers, sway bars
Steering System:
Steering gear, power steering pump, hoses, steering linkage, alignment specifications
Braking System:
Front and rear brakes (disc/drum), ABS system, brake fluid specifications, bleeding procedures
Wheels And Tires:
Tire sizes, inflation pressures, wheel specifications, bolt patterns, TPMS (if applicable)
Electrical System:
Complete wiring diagrams, component locations, fuse/relay assignments, diagnostic procedures
Lighting System:
Headlights, taillights, interior lighting, fog lamps
Instrument Panel:
Gauges, warning lights, indicator functions
Bodywork:
Body panel removal/installation, door mechanisms, glass replacement, interior trim
HVAC:
Air conditioning system, heater core, blower motor, climate control operation
Safety Features:
Airbags, seatbelts, child restraint systems
Basic Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, tire rotations
Intermediate Repair:
Brake pad/rotor replacement, spark plug replacement, belt replacement, minor fluid leaks
Advanced Repair:
Engine rebuilds, transmission overhauls, differential repairs, complex electrical diagnostics
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues
Diagnostics:
OBD-II codes, sensor testing, circuit testing
Torque Specifications:
Precise torque values for all critical fasteners
Fluid Capacities:
Detailed capacities for all vehicle fluids
Depth:
Comprehensive (from basic maintenance to full engine/transmission rebuilds)
Diagrams:
Step-by-step diagrams, exploded views, detailed illustrations
Electrical Diagrams:
Full color, detailed wiring schematics for all vehicle systems
Engine Options:
4.0L Inline-6, 4.0L High Output (HO) Inline-6, 5.2L V8 Magnum, 5.9L V8 Magnum
4.0L I6 Horsepower:
185 hp @ 4500 rpm (approx.)
4.0L I6 Torque:
220 lb-ft @ 2500 rpm (approx.)
5.2L V8 Horsepower:
215 hp @ 4600 rpm (approx.)
5.2L V8 Torque:
295 lb-ft @ 3200 rpm (approx.)
5.9L V8 Horsepower:
235 hp @ 4400 rpm (approx.)
5.9L V8 Torque:
340 lb-ft @ 3200 rpm (approx.)
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Recommended Fuel:
87 Octane Unleaded Gasoline
Oil Change Interval:
Every 3,000-5,000 miles or 6 months (depending on usage and oil type)
Transmission Fluid Change:
Every 30,000-50,000 miles
Coolant Change:
Every 30,000 miles or 2 years
Engine Oil Type:
SAE 5W-30 or 10W-30 (check owner's manual for specific viscosity based on climate)
Engine Oil Capacity:
5.0 quarts (4.7L) for 4.0L I6; 5.0 quarts (4.7L) for 5.2L/5.9L V8 (with filter)
Transmission Fluid Type:
ATF+4 (previously ATF+3 or ATF+2 for earlier models, consult manual for exact spec)
Coolant Type:
Chrysler/Mopar HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant, or equivalent (typically green)
Common Issues:
Head gasket leaks (4.0L I6), cracked cylinder heads (older 4.0L engines), radiator leaks, water pump failures, transmission issues (e.g., 42RE solenoid issues), transfer case chain stretch, ABS sensor failures, death wobble (steering/suspension related)
