Vehicle Class:
Compact SUV / Off-Road Vehicle
Target Audience:
Off-road enthusiasts, recreational users, Jeep owners seeking self-sufficiency
Key Competitors:
Toyota Land Cruiser (FJ40/60/80 series), Ford Bronco, Land Rover Defender (early models)
Distinctive Features:
Solid front and rear axles, removable doors and top, short wheelbase, iconic Jeep styling, legendary off-road capability
Manual Value Proposition:
Enables owners to perform factory-level maintenance and repairs, saving costs and extending vehicle lifespan
Engine Service:
Diagnosis, overhaul, component replacement, timing, emissions
Transmission Service:
Manual (AX-5, NV3550) and Automatic (32RH) diagnosis, repair, fluid services
Driveline And Axles:
Front and rear differentials, axle shafts, universal joints, NV231 transfer case
Suspension System:
Front and rear solid axles, leaf springs, shock absorbers, steering linkage
Brake System:
Front disc, rear drum brakes, hydraulic system, parking brake
Clutch System:
Clutch assembly, pressure plate, release bearing, hydraulic master and slave cylinders
Cooling System:
Radiator, water pump, thermostat, coolant, fan clutch
Electrical System:
Battery, charging system, starting system, ignition system, lighting, instruments, body electrical
Fuel System:
Fuel tank, pump, filter, injectors, pressure regulation
Exhaust System:
Manifolds, catalytic converter, muffler, pipes
Heating And Air Conditioning:
HVAC system components, refrigerant service, diagnosis
Body And Frame:
Body panels, doors, hood, windshield, chassis, structural components
Steering System:
Steering column, steering gear, power steering pump, hoses
Maintenance Procedures:
Scheduled maintenance, fluid changes, filter replacements, inspections
Diagnostic Procedures:
Troubleshooting guides, symptom-based diagnosis, fault code interpretation (OBD-II)
Repair Procedures:
Step-by-step instructions for component removal, disassembly, repair, and reassembly
Adjustment Procedures:
Alignment specifications, brake adjustments, clutch adjustments
Torque Specifications:
Detailed torque values for all fasteners
Wiring Diagrams:
Comprehensive electrical schematics for all systems
Depth Level:
Factory-level technical information
Diagnostic Tools:
Information on using diagnostic scanners and specialized tools
Specifications Data:
All essential technical data, including dimensions, tolerances, clearances, and fluid capacities
Engine Code And Type:
4.0L Inline-6 (OHV) - High Output (likely VIN 'S')
Displacement:
242 cubic inches (3952 cc)
Bore X Stroke:
3.88 in x 3.57 in (98.5 mm x 90.6 mm)
Compression Ratio:
8.75:1
Horsepower:
182 hp @ 4600 rpm
Torque:
220 lb-ft @ 3200 rpm
Valve Train:
Overhead Valve (OHV), 12 valves (2 per cylinder), Pushrod actuated
Fuel Delivery:
Multi-Port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline (87 octane minimum recommended)
ECU Type:
Chrysler Powertrain Control Module (PCM)
Transmission Type Standard:
5-speed Manual (AX-5 or NV3550 depending on build date/configuration)
Transmission Type Optional:
3-speed Automatic (32RH)
Transfer Case:
NV231 Command-Trac (2WD High, 4WD High, Neutral, 4WD Low)
Manual Transmission Fluid:
Mopar Manual Transmission Lubricant (or equivalent API GL-3/GL-4, SAE 75W-90)
Automatic Transmission Fluid:
Mopar ATF+4 (or equivalent Chrysler MS-9602 specification)
Wheelbase:
93.4 inches (2372 mm)
Length:
151.4 inches (3845 mm)
Width:
66.7 inches (1694 mm)
Height:
71.5 inches (1816 mm) (with soft top)
Curb Weight:
Approx. 3,000 - 3,300 lbs (1360 - 1497 kg) depending on configuration
Gross Vehicle Weight Rating:
Approx. 4,400 lbs (1996 kg)
Standard Tire Size:
215/75R15
Optional Tire Size:
31x10.5R15 (with fender flares)
Wheel Bolt Pattern:
5 x 4.5 inches (5 x 114.3 mm)
NHTSA Front Impact Rating:
Not explicitly rated or poor performance due to age and design focus
IIHS Crash Test Results:
Limited data, generally considered less safe than modern vehicles
Anti Lock Brakes:
Optional (Rear-wheel ABS typically standard on Sport models, 4-wheel optional)
Airbags:
Driver and Passenger front airbags
Seat Belts:
3-point front seat belts, lap belts in rear
Oil Change Interval:
Every 3,000 - 5,000 miles or 3-6 months (depending on oil type and driving conditions)
Transmission Fluid Interval:
Every 30,000 - 50,000 miles (manual & auto)
Coolant Flush Interval:
Every 30,000 - 50,000 miles or 2-3 years
Spark Plug Replacement:
Approx. 100,000 miles (if using platinum or iridium plugs)
Engine Oil Type Capacity:
5W-30 (conventional or synthetic), 5.0 quarts (4.7 liters) with filter change
Coolant Type Capacity:
Chrysler/Mopar OAT (Orange) or HOAT (Orange/Pink) Antifreeze, 10.5 quarts (9.9 liters)
Common Wear Items:
Clutch components (especially hydraulic), U-joints, exhaust system corrosion, leaf spring bushings, water pump, radiator, steering linkage wear
Engine Specific Concerns:
Oil filter adapter O-rings can leak, occasional head gasket concerns on early 4.0L engines (less common on 1999 models)
Transmission Concerns:
AX-5 can be less robust for heavy off-roading; NV3550 is generally more durable. Automatic transmission cooler lines can corrode.