Positioning:
The Jeep Cherokee XJ established itself as a highly capable and durable compact SUV, particularly favored for its off-road prowess and iconic design.
Competitors:
Competed with vehicles like the Toyota 4Runner, Ford Explorer, and Chevrolet Blazer, often distinguishing itself with its unibody construction and legendary Selec-Trac or Command-Trac 4x4 systems.
Features:
Renowned for its robust build, excellent articulation for off-roading, comfortable ride for its class, and long-term reliability.
Engine:
Comprehensive diagnosis, repair, and overhaul procedures for all 1999 XJ engine variants.
Transmission:
Detailed service and repair information for automatic (e.g., 42RE, 30RH) and manual transmissions.
Drivetrain:
Service and repair of 4WD systems, transfer cases (e.g., NP231), axles, and differentials.
Suspension Steering:
Front and rear suspension (leaf springs, coil springs), steering system, alignment specifications, and repair.
Brakes:
Diagnosis, repair, and service for front disc and rear drum brakes, ABS (if equipped).
Electrical:
Wiring diagrams, component testing, diagnosis of lighting, ignition, charging, starting, and accessory systems.
Body Chassis:
Body panel removal and installation, interior trim, structural components, and corrosion prevention.
HVAC:
Air conditioning, heating, ventilation system diagnosis and repair.
Fuel System:
Fuel injection system, fuel pump, injectors, fuel filter replacement, and diagnostics.
Cooling System:
Radiator, water pump, thermostat, coolant specifications, and troubleshooting.
Maintenance:
Routine maintenance tasks such as oil changes, filter replacements, fluid checks, and lubrication.
Troubleshooting:
Diagnostic flowcharts and symptom-based troubleshooting for common and complex issues.
Repair:
Step-by-step instructions for component removal, installation, and repair across all vehicle systems.
Rebuilds:
Engine and transmission rebuild procedures, including torque specifications and clearances.
Diagnostics:
On-board diagnostics (OBD-II) code interpretation and systematic diagnostic strategies.
Wiring Diagrams:
Detailed electrical schematics for all circuits and components.
Depth:
Comprehensive, covering from basic maintenance to advanced engine and transmission overhauls.
File Type:
Likely PDF, optimized for searchability and printing.
Quality:
High-resolution scans or original digital files, ensuring clarity of text and diagrams.
Binding:
N/A (for digital format); typically spiral or perfect bound for print.
Paper:
N/A (for digital format); typically high-quality paper for print versions.
Engine Variant 1:
4.0L Inline-6 (242 cu in) OHV MPI
Bore X Stroke 1:
3.875 in x 3.580 in (98.4 mm x 90.9 mm)
Compression Ratio 1:
8.8:1
Horsepower 1:
180-190 hp @ 4600 rpm (approx.)
Torque 1:
220-235 lb-ft @ 3200 rpm (approx.)
Engine Variant 2:
2.5L Inline-4 (150 cu in) OHV MPI
Horsepower 2:
125 hp @ 4800 rpm (approx.)
Torque 2:
150 lb-ft @ 3200 rpm (approx.)
Fuel Delivery:
Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline
Fuel Octane Rating:
87 octane (minimum recommended)
Transmission Type Std:
4-speed Automatic (42RE, 30RH)
Transmission Type Opt:
5-speed Manual (AX-15, NV3550 for later models - check specific build)
Transfer Case:
Selec-Trac (full-time 4WD) or Command-Trac (part-time 4WD) NV231 transfer case.
Gear Ratios 42Re:
First: 2.74, Second: 1.57, Third: 1.00, Reverse: 2.20 (typical)
Wheelbase:
101.4 inches (2576 mm)
Length:
164.1 inches (4168 mm)
Width:
70.5 inches (1791 mm)
Height:
63.7 inches (1618 mm)
Ground Clearance:
Approx. 8.7 inches (221 mm) depending on configuration.
Cargo Volume Behind Rear Seat:
33.5 cubic feet (0.95 cubic meters) (approx.)
Cargo Volume With Rear Seat Folded:
69.0 cubic feet (1.95 cubic meters) (approx.)
Curb Weight:
3400-3800 lbs (1542-1724 kg) depending on configuration.
Gross Vehicle Weight Rating:
Approx. 4700-5200 lbs (2132-2359 kg)
NHTSA Driver Side Impact:
Not rated for 1999 model year.
IIHS Frontal Impact:
Good (for 1999-2001 models).
ABS:
Available on some models (rear-wheel ABS typically).
Airbags:
Driver and passenger front airbags.
Seatbelts:
Front and rear seat belts with pretensioners for front occupants.
Audio System:
Factory AM/FM stereo with cassette player, optional CD player. Speaker configurations varied by trim level.
Cruise Control:
Standard on most trim levels.
Power Accessories:
Power windows, power door locks, power mirrors available on higher trims.
Oil Change Interval:
Every 3,000 miles (4,800 km) or 3 months (typical for this era, but consult manual for specific recommendations).
Engine Coolant Flush:
Every 30,000 miles (48,000 km) or 24 months.
Transmission Fluid Change:
Every 30,000-60,000 miles (48,000-96,000 km) depending on usage (more frequent for severe service).
Spark Plug Replacement:
Every 60,000-100,000 miles (96,000-160,000 km) depending on spark plug type (e.g., copper, platinum).
Engine Oil Type:
SAE 10W-30 (preferred for 4.0L), SAE 5W-30 or 10W-30 (for 2.5L). Consult manual for specific API service classification.
Engine Oil Capacity:
4.0L: 6 quarts (5.7 L) with filter; 2.5L: 5 quarts (4.7 L) with filter.
Transmission Fluid Type:
ATF+4 (for automatic transmissions, although ATF+3 was likely spec'd originally and ATF+4 is a backward-compatible upgrade). Manual transmissions typically use GL-3 or GL-4 gear oil.
Coolant Type:
Ethylene Glycol based coolant, 50/50 mix with distilled water (typically Mopar or equivalent).
Brake Fluid Type:
DOT 3 brake fluid.
Common Problems:
Crankshaft position sensor failures, rear main seal leaks, heater core leaks, exhaust manifold cracks (4.0L), differential pinion seal leaks, power steering pump leaks.
Common Problems Electrical:
Intermittent gauge sweep, power window motor failures, TPS (Throttle Position Sensor) issues.
Jeep Legacy:
Jeep has a storied history in off-road vehicles, dating back to its military origins in WWII, establishing a reputation for ruggedness and capability.
Xj Lineage:
The XJ Cherokee, introduced in 1984, revolutionized the SUV market with its unibody construction, offering a more car-like ride while retaining significant off-road capability. The 1999 model is part of the second generation of the XJ.
Production Years:
1984-2001
Manufacturing Locations:
Primarily Toledo, Ohio, USA.
