Engine Mechanical:
Complete coverage of engine assembly, disassembly, and internal components including cylinder block, cylinder head, camshaft, valves, pistons, connecting rods, crankshaft, oil pump, and cooling system components.
Fuel System:
Detailed information on fuel tank, fuel pump, fuel injectors, throttle body, SFI (Sequential Fuel Injection) system, and fuel filter replacement.
Ignition System:
Covers ignition coils, spark plugs, wiring, distributor (if applicable), and ignition timing adjustments.
Cooling System:
Includes radiator assembly, water pump, thermostat, cooling fan system, hoses, and coolant specifications.
Exhaust System:
Covers exhaust pipes, catalytic converter, mufflers, and emission control systems.
Charging System:
Details on the generator assembly, battery, charging circuits, and drive belt maintenance.
Starting System:
Information on the starter assembly, starter switch, and related wiring.
Transmission Manual:
Comprehensive coverage of manual transaxle assembly, disassembly, internal components, fluid specifications, and shift/select lever shafts.
Transmission Automatic:
Includes automatic transaxle assembly, disassembly, valve body, torque converter clutch, fluid specifications, and control cables.
Clutch System:
Details on clutch master cylinder, clutch pedal, clutch unit, clutch release cylinder, and clutch start switch.
Drive Shafts:
Covers front and rear drive shafts, including U-joints and alignment.
Axles And Differentials:
Detailed information on rear axle beam, front and rear axle hubs, differential case assembly, and front differential oil seals.
Suspension Front:
Comprehensive coverage of the front suspension system, including stabilizer bar, control arms, springs, shocks, and alignment procedures.
Suspension Rear:
Detailed information on the rear suspension system, including coil springs, shock absorbers, and alignment procedures.
Wheels And Tires:
Covers wheel and tire system, tire maintenance, rotation, pressure specifications, and wheel alignment.
Brake System:
In-depth coverage of brake master cylinder, brake booster, brake pedal, front and rear brakes, brake calipers, brake pads, rotors, parking brake system, and brake fluid.
Steering System:
Details on steering wheel, steering column, power steering system, power steering link assembly, and steering sensor.
Body Exterior:
Coverage of front and rear bumpers, fender panels, mudguards, hoods, back doors, doors, door glass weatherstripping, roof headlining, and body repair procedures.
Body Interior:
Includes instrument panel, center cluster module switch, steering column, seats, seat belts, floor shift assembly, and interior trim.
Lighting System:
Covers headlights, front marker lamps, rear combination lamps, license plate lamps, center stop lamps, and interior lighting.
Wiper And Washer:
Detailed information on wiper and washer system, wiper motors, wiper blades, washer nozzles, and washer fluid.
Air Conditioning:
Comprehensive coverage of the air conditioning system, including receiver condenser assembly, blower assembly, radiator assembly, refrigerant, and heating/air conditioner controls.
Audio Visual:
Includes radio receiver assembly, speakers, and antenna systems (roof antenna pole, antenna cord, amplifier antenna).
Supplemental Restraint System:
Detailed coverage of airbags (front seat, side, curtain, passenger), airbag sensors (front, rear, side, center), seat belt warning system, and spiral cable sub-assembly.
Electrical System:
Extensive wiring diagrams, power source information, and troubleshooting for various electrical components.
Emission Controls:
Information on emission control systems, including charcoal canister.
Safety Systems:
Includes yaw rate sensor, skid control sensor, and shift lock system.
Maintenance:
Routine maintenance procedures, fluid checks and changes, filter replacements, belt adjustments, and inspections.
Troubleshooting:
Diagnostic procedures for identifying and resolving common and complex issues across all vehicle systems.
Repair:
Step-by-step instructions for component removal, repair, and reinstallation for nearly all parts of the vehicle.
Overhaul:
Detailed instructions for engine and transmission overhauls, ensuring complete rebuild capabilities.
Wiring Repair:
Specific guidance on diagnosing and repairing wire harness issues.
Alignment:
Front and rear wheel alignment procedures and specifications.
Diagnosis:
Diagnostic trouble codes (DTCs) and symptom-based troubleshooting guides.
Installation:
Instructions for installing accessories and replacement parts.
Depth:
Comprehensive, from basic maintenance to complete engine and transmission rebuilds, electrical system diagnostics, and body repair.
Diagnostic Tools:
Implied usage of common automotive diagnostic tools and specific manufacturer diagnostic procedures.
Specifications:
Includes detailed technical specifications, torque values, clearances, fluid capacities, and electrical schematics.
Oil Change Interval:
Every 3,000 - 5,000 miles or 3-6 months, depending on driving conditions (refer to manual for exact specifications).
Transmission Fluid Change Manual:
Check condition every 30,000 miles; replace as needed or every 60,000-100,000 miles (refer to manual).
Transmission Fluid Change Automatic:
Check condition every 30,000 miles; replace filter and fluid every 45,000-60,000 miles (refer to manual).
Coolant Flush:
Every 2 years or 30,000 miles.
Spark Plug Replacement:
Typically every 60,000 - 100,000 miles for modern spark plugs (refer to manual for exact type and interval).
Engine Oil Type:
SAE 10W-30 (API SJ or higher, refer to manual for exact specification).
Engine Coolant:
Mopar Antifreeze/Coolant (50/50 mix with distilled water) or equivalent HOAT coolant.
Brake Fluid:
DOT 3 (refer to manual for precise specification).
Power Steering Fluid:
ATF+3 or equivalent.
Transfer Case Fluid:
Mopar NV231 Transfer Case Lubricant (or equivalent SAE 75W-90 GL-5).
Common Issue 1:
Leaf spring perches cracking on earlier models (less common on TJ due to coil springs, but frame reinforcement can be relevant).
Common Issue 2:
Cracked exhaust manifolds (common on the 4.0L engine, especially with age and heat cycles).
Common Issue 3:
Oil filter adapter housing leaks.
Common Issue 4:
Worn steering components (tie rod ends, drag link).
Common Issue 5:
Radiator leaks or overheating issues, often related to aging components.
Common Issue 6:
Transmission fluid leaks from seals or cooler lines.
Common Issue 7:
Airbag system warning lights, often due to faulty clock spring in the steering column.