Engine:
4.0L AMC 242 (I6), 2.5L AMC 150 (I4) - including diagnostics, repair, and overhaul
Transmission:
42RE (4-speed Automatic), NV3550 (5-speed Manual), NP231 (Transfer Case) - diagnosis, repair, and overhaul
Drivetrain:
Front and Rear Axles (Dana 30, Dana 35), Driveshafts, Wheel Bearings, Differential Service
Suspension:
Front Leaf Spring (2001 4-door), Front Coil Spring/Solid Axle, Rear Leaf Spring Suspension - alignment, shock replacement, component repair
Steering:
Power Steering System, Steering Gearbox, Steering Column - diagnosis and repair
Brakes:
Front Disc Brakes, Rear Drum Brakes (standard), Optional Rear Disc Brakes, ABS System - maintenance, repair, bleeding procedures
Electrical:
Battery, Charging System, Starting System, Ignition System, Lighting, Gauges, Body Electrical (Power Windows, Locks, Wipers), Fuses and Relays, Diagnostic Trouble Codes (DTCs)
Climate Control:
HVAC System, A/C System (Refrigerant Handling, Compressor, Evaporator, Condenser), Heater Core, Blower Motor
Fuel System:
Fuel Pump, Fuel Injectors, Fuel Filter, Fuel Tank, Evaporative Emission Control (EVAP)
Exhaust System:
Exhaust Manifold, Catalytic Converter, Muffler, Pipes, Oxygen Sensors
Body And Frame:
Body Panel Repair, Doors, Hood, Tailgate, Interior Trim, Upholstery, Frame Inspection and Repair
Safety Systems:
Airbag System (SRS), Seat Belts, Child Seat Anchors
Maintenance:
Oil Changes, Filter Replacements, Fluid Top-offs, Tire Rotations, Spark Plug Replacement, Brake Pad Replacement, Belt Inspections
Diagnostics:
Systematic troubleshooting guides, symptom-based diagnosis, electrical schematics, diagnostic trouble code interpretation
Repair:
Engine rebuild, transmission overhaul, axle repair, brake caliper replacement, suspension component replacement, electrical component repair
Installation:
Component replacement procedures (e.g., alternator, starter, water pump), accessory installation guidance
Torque Specifications:
Detailed torque values for all critical fasteners across all systems
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems
Depth:
Complete engine and transmission overhaul procedures, in-depth electrical troubleshooting, bodywork and frame repair guidance
Diagnostic Tools:
Information on required diagnostic tools and procedures, including OBD-II scanner usage
Wheelbase:
101.4 inches (2576 mm)
Length:
167.5 inches (4255 mm)
Width:
70.4 inches (1788 mm)
Height:
63.7 inches (1618 mm) (approx.)
Ground Clearance:
Approx. 8.7 inches (221 mm) (depending on tire size and suspension)
Curb Weight:
Approx. 3,300 - 3,600 lbs (1497 - 1633 kg)
Gross Vehicle Weight Rating:
Approx. 4,600 - 4,850 lbs (2087 - 2200 kg)
Towing Capacity:
Up to 5,000 lbs (2268 kg) (with appropriate equipment and engine)
Oil Change Interval:
Every 3,000 - 5,000 miles (5,000 - 8,000 km) or 3-6 months, depending on driving conditions (refer to manual for specific recommendations).
Transmission Fluid Change:
Every 30,000 - 60,000 miles (48,000 - 96,000 km) or as per manual, especially for heavy use.
Coolant Change:
Every 30,000 - 100,000 miles (48,000 - 160,000 km) or 2-5 years, depending on coolant type (HOAT recommended).
Spark Plug Replacement:
4.0L: Approx. 100,000 miles (160,000 km) with Long-Life plugs. 2.5L: Approx. 30,000 miles (48,000 km) with standard plugs.
Engine Oil Spec:
SAE 10W-30 API Certified (check manual for specific viscosity and API rating for your climate).
Transmission Fluid Type Auto:
Chrysler ATF+4 (preferred) or equivalent meeting MS-9602 specification.
Transmission Fluid Type Manual:
Mopar Manual Transmission Lubricant (or equivalent meeting MS-9224 specification), or GL-3/GL-4 gear oil.
Coolant Type:
Chrysler HOAT (Hybrid Organic Acid Technology) coolant (typically pink or orange), or a compatible Dex-Cool type.
Power Steering Fluid:
ATF+4 or Mopar Power Steering Fluid.
Common Problems:
Cracked cylinder heads (especially 0331 casting on later 4.0L engines), radiator leaks, rear main seal leaks, worn leaf spring bushings, sway bar link wear, death wobble (front end suspension/steering issues), catalytic converter failure, fuel pump failure.