Segment:
Compact SUV / Off-Road Vehicle
Target Audience:
Jeep Wrangler owners seeking to perform their own maintenance and repairs, independent repair shops
Competitors 2000:
Toyota 4Runner, Ford Bronco, Nissan Xterra
Vehicle Philosophy:
Rugged, go-anywhere capability, iconic open-air design
Manual Value Proposition:
Provides factory-level repair information, enabling owners to save on dealership service costs and maintain their vehicle's performance and longevity.
Powertrain:
Engine (4.0L), Transmission (NV3550, 42RLE, AW4), Transfer Case (NP231), Drivetrain (Axles, Driveshafts)
Chassis:
Suspension (Solid Axles, Coil Springs, Control Arms), Steering, Brakes (Front Disc/Rear Drum/Optional Disc), Frame
Electrical:
Wiring Diagrams, Lighting, Ignition System, Starting System, Charging System, Body Electronics, Instrument Panel
Body:
Exterior Panels, Interior Trim, Doors, Hood, Tailgate, Seating, Convertible Top Mechanism
Maintenance:
Lubrication, Fluid Changes, Filter Replacements, Spark Plug Replacement, Belt Adjustments
Repair:
Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Repair, Body Panel Repair
Diagnostics:
Troubleshooting Charts, Diagnostic Trouble Codes (DTCs), Component Testing Procedures
Specifications:
Torque Specifications, Clearance Measurements, Fluid Capacities, Electrical Resistance Values
Depth:
Comprehensive - Covers everything from basic fluid checks to complete engine and transmission rebuilds, including detailed diagnostic trees.
Engine Code:
AMC 242 (also known as 4.0L OHV)
Engine Type:
Inline 6-Cylinder, Overhead Valve (OHV)
Displacement:
3956 cc (242 cubic inches)
Bore X Stroke:
3.875 in x 3.562 in (98.4 mm x 90.5 mm)
Horsepower:
181 hp @ 4600 rpm
Torque:
222 lb-ft @ 3200 rpm
Induction:
Multi-port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline (87 octane recommended)
Block Material:
Cast Iron
Head Material:
Aluminum Alloy
Timing Mechanism:
Pushrod Actuated Overhead Valves (OHV)
Transmission Type:
Manual
Manual Transmission Model:
NV3550 (New Process 5-speed)
Automatic Transmission Model:
42RLE (4-speed automatic)
Clutch Type:
Dry single plate (manual transmission)
Transfer Case:
New Process NP231 (Command-Trac part-time 2-speed)
Manual Transmission Fluid:
Mopar Manual Transmission Lubricant (or equivalent API GL-3, SAE 75W-90)
Automatic Transmission Fluid:
Mopar ATF+4 (or equivalent)
Transfer Case Fluid:
Mopar NV241 Transfer Case Lubricant (or equivalent API GL-4, SAE 75W-90)
Wheelbase:
93.4 inches (2372 mm)
Length:
151.4 inches (3845 mm)
Width:
66.5 inches (1689 mm)
Height:
73.3 inches (1862 mm) (soft top)
Ground Clearance:
8.5 inches (216 mm)
Curb Weight:
Approx. 3,285 - 3,470 lbs (1490 - 1574 kg)
Gross Vehicle Weight Rating:
Approx. 4,600 lbs (2087 kg)
NHTSA Rollover Resistance:
5 Stars (Statistically unlikely to roll over)
Braking System:
Front disc, rear drum (standard); optional front/rear disc with ABS
ABS:
Optional anti-lock braking system on 4-wheel disc brake models
Airbags:
Driver and passenger front airbags
Seatbelts:
Three-point front seat belts, lap belts in rear
Oil Change Interval:
Every 3,000 miles (4,800 km) or 3 months
Air Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months
Spark Plug Replacement:
Every 30,000 miles (48,000 km) (standard spark plugs), 100,000 miles for platinum/iridium plugs if applicable.
Coolant Flush:
Every 30,000 miles (48,000 km) or 24 months
Engine Oil Spec:
API SJ, SAE 5W-30 (or 10W-30 depending on climate/usage)
Engine Oil Capacity:
5.0 US quarts (4.7 liters) with filter
Coolant Type:
Mopar Antifreeze/Coolant (or equivalent HOAT - Hybrid Organic Acid Technology)
Common Problems:
Header cracking (4.0L), rear main seal leaks, transmission input shaft seal leaks (NV3550), death wobble (suspension/steering linkage issues), interior water leaks, minor electrical gremlins.
Preventative Maintenance Focus:
Regularly inspect and maintain suspension and steering components, monitor for oil leaks, especially around the transmission.
Jeep Legacy:
Roots in World War II Willys MB, synonymous with off-road capability and freedom
Tj Generation Introduction:
Introduced for the 1997 model year, replacing the YJ. The TJ marked a significant return to Jeep's off-road roots with coil spring suspension.
Tj Design Philosophy:
Emphasis on ride comfort and handling compared to previous generations, while retaining iconic solid axles for extreme off-road articulation.
Manufacturing Plant:
Toledo, Ohio, USA
