Engine:
Detailed information on both the 4.0L I6 and 4.7L V8 engines, including component identification, diagnostics, repair procedures, and overhaul specifications.
Transmission:
Coverage for automatic transmissions (e.g., 42RE, 45RFE, 545RFE), including overhaul, repair, diagnostics, fluid service, and component testing.
Drivetrain:
Includes front and rear axles, differentials, NV242 (Selec-Trac) and NV247 (Quadra-Drive) transfer cases, driveshafts, and CV joints.
Suspension:
Front and rear suspension systems, including springs, shocks, control arms, ball joints, steering knuckles, and alignment procedures.
Brakes:
Front and rear brake systems (disc brakes), including ABS, calipers, rotors, pads, hydraulic lines, master cylinder, and bleeding procedures.
Steering:
Power steering system, including steering gear, pump, hoses, and troubleshooting.
Electrical:
Comprehensive electrical system coverage, including wiring diagrams, fuses, relays, lighting, starting and charging systems, power windows, locks, and mirrors.
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system, including components, operation, diagnostics, and refrigerant handling.
Body:
Exterior and interior body components, including doors, hood, tailgate, bumpers, interior trim, and glass replacement.
Safety Systems:
Airbag system, seat belts, and related components.
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel injectors, and evaporative emission control system.
Cooling System:
Radiator, water pump, thermostat, cooling fans, and coolant specifications.
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements, lubrication points, and general upkeep.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, fault code interpretation, and symptom-based troubleshooting guides.
Repair:
Step-by-step repair instructions for all major components and systems, including removal, installation, and adjustment.
Rebuild:
Detailed procedures for overhauling engines, transmissions, and transfer cases, with specific torque values and clearances.
Refurbishment:
Guidance on restoring worn or damaged components and systems to optimal working order.
Restoration:
Information that can assist in bringing a classic or neglected vehicle back to its original condition.
Diagnostics:
In-depth diagnostic routines for all electronic control modules (ECMs), powertrain control modules (PCMs), and related sensors.
Depth:
Highly detailed, covering from basic fluid changes to complete engine and transmission rebuilds, including torque specifications and clearance measurements.
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions (refer to manual for specifics).
Transmission Fluid Change:
Recommended every 30,000-60,000 miles, or more frequently for severe use (consult manual).
Spark Plug Replacement:
4.0L: ~100,000 miles; 4.7L: ~100,000 miles (often platinum or iridium plugs).
Engine Oil:
4.0L: SAE 5W-30; 4.7L: SAE 5W-30 or SAE 5W-40 (check manual for exact spec and API service rating).
Coolant:
Mopar HOAT (Hybrid Organic Additive Technology) Antifreeze/Coolant (e.g., pink or orange color), typically a 50/50 mix with distilled water.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Common Problems:
Rear main seal leaks, radiator leaks (plastic tanks), water pump failures, death wobble (front end steering/suspension issues), O2 sensor failures, manifold crack on 4.7L, transmission solenoid issues.
Oil Filter 4.0L:
e.g., Mopar MO-899, Wix 51515, Purolator L30001
Oil Filter 4.7L:
e.g., Mopar MO-899, Wix 51515, Purolator L30001 (often shares with 4.0L, verify application)
