Vehicle Segment:
        
        
            Compact SUV / Off-road Vehicle
        
     
    
        
            Target Audience:
        
        
            Enthusiasts, off-roaders, DIY mechanics, owners seeking comprehensive repair knowledge.
        
     
    
    
        
            Key Competitors 1999:
        
        
            Toyota RAV4, Honda CR-V, Ford Explorer, Chevrolet Blazer, Nissan Pathfinder.
        
     
    
        
            Cherokee Xj Advantage:
        
        
            Renowned for its robust unibody construction, legendary 4.0L inline-6 engine, and excellent off-road capability, particularly with the Command-Trac or Selec-Trac 4WD systems.
        
     
    
    
        
            Unibody Construction:
        
        
            Pioneering in its segment, offering a lighter and more rigid structure than traditional body-on-frame SUVs.
        
     
    
        
            Engine Options Renowned:
        
        
            The iconic 4.0L 'High Output' inline-6 engine is a hallmark of reliability and torque.
        
     
    
        
            Offroad Capability:
        
        
            Solid rear axle, good ground clearance, and available 4WD systems provide superior off-road performance.
        
     
 
    
    
    
        
            Engine Systems:
        
        
            Engine mechanical, lubrication, cooling, fuel, ignition, emissions, turbocharging (if applicable).
        
     
    
        
            Transmission Systems:
        
        
            Manual and automatic transmission overhaul, repair, and diagnostics, including transfer case.
        
     
    
        
            Drivetrain Systems:
        
        
            Front and rear axle, differentials, driveshafts, U-joints, and 4WD system.
        
     
    
        
            Suspension Steering:
        
        
            Front and rear suspension (solid axles, leaf springs, coil springs), steering gear, power steering system.
        
     
    
        
            Braking Systems:
        
        
            Front and rear brake systems (disc/drum), ABS (if equipped), parking brake.
        
     
    
        
            Electrical Systems:
        
        
            Battery, charging system, starting system, lighting, instrumentation, power windows/locks, wipers, horn, wiring diagrams.
        
     
    
        
            HVAC Systems:
        
        
            Heating, ventilation, and air conditioning system diagnosis and repair.
        
     
    
        
            Body Exterior:
        
        
            Body panels, doors, windows, exterior trim, bumpers, tailgate, frame construction.
        
     
    
        
            Body Interior:
        
        
            Interior trim, seats, dashboard, console, sound deadening.
        
     
    
        
            Diagnostic Troubleshooting:
        
        
            Systematic troubleshooting guides, symptom-to-cause diagnostics, diagnostic trouble codes (DTCs).
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil changes, fluid checks and replacements, filter changes, tire rotation, lubrication.
        
     
    
        
            Component Replacement:
        
        
            Detailed step-by-step instructions for replacing major and minor components.
        
     
    
        
            Rebuild Procedures:
        
        
            Complete overhaul procedures for engines, transmissions, and axles.
        
     
    
        
            Calibration Adjustment:
        
        
            Procedures for adjusting brakes, clutch, belts, and other mechanical linkages.
        
     
    
        
            Diagnostics:
        
        
            Component testing, electrical system troubleshooting, fuel system diagnostics.
        
     
    
        
            Wiring Repair:
        
        
            Detailed wiring diagrams for all vehicle electrical systems, including repair of damaged circuits.
        
     
    
    
        
            Depth Level:
        
        
            Factory-level detail, suitable for professional mechanics and advanced DIY enthusiasts.
        
     
    
        
            Diagnostic Tools Usage:
        
        
            Guidance on using specialized tools and diagnostic equipment.
        
     
    
        
            Torque Specifications:
        
        
            Precise torque values for all fasteners.
        
     
    
        
            Clearances Tolerances:
        
        
            Specifications for critical component clearances and tolerances.
        
     
 
    
    
    
        
            Engine Code I6:
        
        
            ERH (4.0L)
        
     
    
        
            Engine Displacement I6:
        
        
            3960 cc (242 cu in)
        
     
    
        
            Engine Configuration I6:
        
        
            Inline 6-cylinder, Overhead Valve (OHV)
        
     
    
        
            Bore Stroke I6:
        
        
            98.5 mm x 86.7 mm (3.88 in x 3.41 in)
        
     
    
        
            Compression Ratio I6:
        
        
            8.8:1
        
     
    
        
            Horsepower I6:
        
        
            185 hp @ 4600 rpm
        
     
    
        
            Torque I6:
        
        
            220 lb-ft @ 3200 rpm
        
     
    
    
        
            Optional Engine Code I4:
        
        
            2.5L (AMC 242) - Note: This engine code might be incorrectly assigned in some documentation, 2.5L is typically 150 cu in, not 242.
        
     
    
        
            Optional Engine Displacement I4:
        
        
            2500 cc (150 cu in)
        
     
    
        
            Optional Engine Configuration I4:
        
        
            Inline 4-cylinder, Overhead Valve (OHV)
        
     
    
        
            Optional Engine Horsepower I4:
        
        
            114 hp @ 4500 rpm
        
     
    
        
            Optional Engine Torque I4:
        
        
            147 lb-ft @ 3250 rpm
        
     
    
    
        
            Acceleration 0 60 Mph I6:
        
        
            Approx. 9.5 - 10.5 seconds (depending on configuration)
        
     
    
    
        
            Fuel Delivery:
        
        
            Multi-point Fuel Injection (MPI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline, 87 octane recommended
        
     
    
        
            Ignition System:
        
        
            Distributorless Ignition System (DIS) with Coil-on-Plug (COP) or Distributor/Coil setup depending on exact build date.
        
     
 
    
    
    
        
            Standard Transmission I6:
        
        
            4-Speed Automatic (42RE)
        
     
    
        
            Standard Transmission I4:
        
        
            5-Speed Manual (AX-5)
        
     
    
    
        
            Optional Transmission I6:
        
        
            5-Speed Manual (NV3550) or 4-Speed Automatic (42RE)
        
     
    
        
            Optional Transmission I4:
        
        
            3-Speed Automatic (30RH)
        
     
    
    
        
            Transfer Case Options:
        
        
            Command-Trac (NV231) 2-speed part-time 4WD; Selec-Trac (NV242) 2-speed full-time 4WD.
        
     
    
        
            Transmission Fluid Spec Auto:
        
        
            ATF+4 (Chrysler Mopar Specification)
        
     
    
        
            Transmission Fluid Spec Manual:
        
        
            Manual transmission fluid, SAE 75W-90 or 75W-140 GL-5 (check specific manual for exact spec).
        
     
 
    
    
    
        
            Length:
        
        
            4244 mm (167.1 in)
        
     
    
    
        
            Height:
        
        
            1623 mm (63.9 in)
        
     
    
        
            Wheelbase:
        
        
            2690 mm (106 in)
        
     
    
        
            Ground Clearance:
        
        
            Approx. 8.1 - 8.5 inches (206 - 216 mm) depending on suspension/tires.
        
     
    
    
        
            Curb Weight I6:
        
        
            Approx. 3300 - 3600 lbs (1497 - 1633 kg)
        
     
    
        
            Gross Vehicle Weight Rating Gvw:
        
        
            Approx. 4800 - 5000 lbs (2177 - 2268 kg)
        
     
    
        
            Towing Capacity:
        
        
            Up to 5,000 lbs (2,268 kg) with proper equipment and trailer brakes.
        
     
    
        
            Payload Capacity:
        
        
            Approx. 1,300 - 1,600 lbs (590 - 726 kg)
        
     
 
    
    
    
        
            NHTSA Rollover Rating:
        
        
            3-star (for 1999 model year)
        
     
    
    
        
            ABS:
        
        
            Optional Anti-lock Braking System (ABS) on rear wheels, or 4-wheel ABS on some later models.
        
     
    
        
            Traction Control:
        
        
            Not typically available on this model year.
        
     
    
    
        
            Airbags:
        
        
            Driver and passenger front airbags.
        
     
    
        
            Seat Belts:
        
        
            3-point front seat belts with pretensioners; 3-point rear seat belts.
        
     
    
        
            Child Seat Anchors:
        
        
            LATCH (Lower Anchors and Tethers for Children) system not standard on this generation.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 3,000-5,000 miles (4,800-8,000 km) or 3-6 months, whichever comes first (dependent on driving conditions and oil type).
        
     
    
        
            Engine Oil Filter Replacement:
        
        
            With every oil change.
        
     
    
        
            Air Filter Replacement:
        
        
            Every 15,000-30,000 miles (24,000-48,000 km), inspect more frequently.
        
     
    
        
            Coolant Flush Interval:
        
        
            Every 30,000-50,000 miles (48,000-80,000 km) or 2-3 years.
        
     
    
        
            Transmission Fluid Change Interval Auto:
        
        
            Every 30,000-60,000 miles (48,000-96,000 km).
        
     
    
        
            Spark Plug Replacement I6:
        
        
            Approx. 100,000 miles (160,000 km) for platinum or iridium plugs.
        
     
    
    
        
            Engine Oil Type:
        
        
            API SG or SH, SAE 10W-30 (SAE 5W-30 for extreme cold).
        
     
    
        
            Engine Oil Capacity I6:
        
        
            5.7 US quarts (5.4 liters) with filter.
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol-based antifreeze (green), 50/50 mixture with distilled water.
        
     
    
    
        
            Power Steering Fluid Type:
        
        
            ATF +3 or ATF +4 (check manual for exact spec).
        
     
    
    
        
            Common Engine Issues:
        
        
            Head gasket leaks (early models), cracked cylinder heads (less common on later 4.0L), oil filter adapter leaks, tappet noise.
        
     
    
        
            Common Transmission Issues:
        
        
            Overdrive band failure (42RE), clutch wear (manual), transfer case chain stretch.
        
     
    
        
            Common Suspension Steering Issues:
        
        
            Worn ball joints, worn tie rod ends, leaky steering box, sagging leaf springs.
        
     
    
        
            Common Electrical Issues:
        
        
            Faulty blower motor resistor, intermittent wiper problems, instrument cluster failures, failing alternator or starter.
        
     
    
        
            Common Body Issues:
        
        
            Rust in rocker panels, floor pans, and rear quarter panels; door hinge wear.
        
     
 
    
    
    
        
            Jeep Legacy:
        
        
            Jeep has a storied history dating back to WWII, known for its ruggedness and off-road prowess.
        
     
    
    
        
            Xj Introduction:
        
        
            The XJ Cherokee was introduced in 1984 as a revolutionary compact SUV, the first unibody SUV.
        
     
    
        
            Xj Facelift 1997:
        
        
            Significant styling update for the 1997 model year, featuring a wider grille, revised fenders, new bumpers, and updated interior.
        
     
    
    
        
            Production Years:
        
        
            1984-2001 (North America)
        
     
    
        
            Production Location:
        
        
            Toledo, Ohio, USA
        
     
    
        
            Model Significance:
        
        
            The XJ is highly regarded for its off-road capability and durability, building on Jeep's core strengths.
        
     
 
    
    
    
        
            Offroad Magazine Awards:
        
        
            The XJ Cherokee has consistently been praised by off-road publications for its capabilities and value.
        
     
    
    
        
            Consumer Reports Ratings:
        
        
            Mixed to good, with specific praise for the powertrain and criticism for interior noise and build quality issues in some years/trims.
        
     
    
    
        
            Emissions Certifications:
        
        
            Certified to meet applicable EPA and California Air Resources Board (CARB) emissions standards for the 1999 model year.