Segment:
Compact SUV, renowned for its off-road capability and ruggedness
Competitors:
Toyota 4Runner, Ford Bronco, Chevrolet S-10 Blazer
Design:
Unibody construction (a segment first), solid front axle (until 1999), robust drivetrain options
Offroad Prowess:
Jeep's legendary Command-Trac and Selec-Trac 4WD systems
Diy Savings:
Empowers owners to perform extensive maintenance and repairs, saving significant labor costs
Powertrain:
Engine (4.0L Inline-6, 2.5L Inline-4), Transmission (AW4, NV3550, NP231 Transfer Case)
Chassis:
Suspension (Front Solid Axle, Rear Leaf Springs/Coil Springs), Steering, Brakes (ABS, Non-ABS)
Electrical:
Wiring Diagrams, Lighting, Instrumentation, Power Accessories, Engine Control Module (ECM)
Body:
Exterior and Interior Trim, HVAC, Body Control Module (BCM)
Diagnostic:
Troubleshooting charts, diagnostic trouble codes (DTCs), symptom-based diagnostics
Repair:
Step-by-step repair instructions for all major components and systems
Maintenance:
Routine maintenance tasks, fluid changes, filter replacements, lubrication
Overhaul:
Engine and transmission overhaul procedures, component rebuilding
Emissions:
Emissions control system diagnosis and repair, catalytic converter information
HVAC:
Air conditioning system diagnosis and repair, heater core replacement, blower motor service
Fuel System:
Fuel pump replacement, fuel injector service, fuel tank removal and installation
Cooling System:
Radiator replacement, water pump service, thermostat replacement
Wheels And Tires:
Tire pressure specifications, wheel alignment procedures, wheel bearing replacement
Body And Frame:
Door panel removal, tailgate service, rust repair guidance (often supplemental)
Depth:
Full factory-level diagnostic and repair procedures, including torque specifications, clearances, and assembly sequences
4.0L:
4.0L OHV Inline-6 (AMC 242), MPI (Multi-Point Injection)
2.5L:
2.5L OHV Inline-4 (AMC 150), MPI (Multi-Point Injection)
4.0L Hp:
181 hp @ 4,600 rpm
4.0L Torque:
220 lb-ft @ 3,000 rpm
2.5L Hp:
125 hp @ 5,200 rpm
2.5L Torque:
150 lb-ft @ 2,500 rpm
Type:
Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline, 87 octane recommended
Type:
4-speed Automatic Transmission (AW4)
Type:
5-speed Manual Transmission (NV3550, replacing AX-15)
Transfer Case:
New Process NP231 Command-Trac (part-time 2WD/4WD) standard
Aw4 Fluid Type:
Mopar ATF+4 (or equivalent) - Check capacity in manual
Nv3550 Fluid Type:
Mopar Manual Transmission Lubricant (or equivalent) - Check capacity in manual
NHTSA Rollover Resistance:
4/5 Stars (for 4WD models)
IIHS Crash Test Rating:
Acceptable (for frontal offset, though specific 1999 ratings may vary)
ABS:
Available Anti-lock Braking System (ABS) on rear wheels (4-wheel disc optional for some trims)
Airbags:
Driver and Passenger front airbags
Seatbelts:
Three-point front and rear seat belts
Audio System:
AM/FM stereo with cassette player, optional CD player, available premium sound systems
Speakers:
Typically 4 or 6 speakers
Cruise Control:
Standard on most trims
Tilt Steering:
Available on some trims
Power Windows:
Available on higher trims
Power Locks:
Available on higher trims
Oil Change Interval:
Every 3,000-5,000 miles or 6 months (depending on driving conditions and oil type)
Transmission Fluid Change:
Every 30,000-60,000 miles (AW4), Every 50,000-75,000 miles (NV3550)
Coolant Flush:
Every 30,000-50,000 miles or 2-3 years
Engine Oil:
SAE 10W-30 (API SG or higher for 4.0L), SAE 5W-30 (API SG or higher for 2.5L) - Check owner's manual for precise specs and capacities.
Coolant:
Chrysler/Mopar Antifreeze/Coolant (50/50 mix with distilled water)
Heater Core:
Prone to leaking over time, often requiring dashboard removal for replacement
Crankshaft Position Sensor:
Can fail, leading to no-start or stalling issues (especially on the 4.0L)
Radiator:
Plastic end tanks can become brittle and crack, leading to coolant leaks
Power Steering Pump:
Can develop leaks or noise over time
Exhaust Manifold:
Cast iron manifolds can crack, leading to exhaust leaks and ticking noises
Rust:
Common areas include rocker panels, rear quarter panels, and floor pans, particularly in rust-belt regions
Jeep Legacy:
Rooted in military vehicle design, known for unparalleled off-road capability and durability
Xj Introduction:
Introduced in 1984, revolutionized the SUV segment with its unibody construction and compact size
1999 Updates:
Minor styling tweaks, introduction of the NV3550 manual transmission, potential improvements to ABS system
Production Years:
1984-2001
Manufacturing Location:
Toledo, Ohio, USA
