🏷️ Basic Information

Make:

Jeep

Model:

Cherokee

Year:

1999

Chassis Code:

XJ

Product Name:

1999 Jeep Cherokee XJ Service Repair Manual

👋 Introduction

Market Position:

The Jeep Cherokee XJ was a highly influential compact SUV, bridging the gap between utilitarian off-road capability and everyday drivability. Its robust construction and iconic design made it a favorite for off-roading enthusiasts and general consumers alike.

Competitive Analysis:

Competed against vehicles like the Toyota 4Runner, Ford Bronco II, Nissan Pathfinder, and Chevrolet S-10 Blazer. The XJ's unibody construction offered a more refined ride than body-on-frame competitors, while its legendary 4.0L inline-six engine provided superior power and reliability.

Key Features:

Iconic XJ platform, robust unibody construction, legendary 4.0L inline-six engine, Command-Trac and Selec-Trac 4WD systems, excellent off-road capability, durable interior, straightforward mechanicals.

📋 Manual Details

Coverage:

Complete factory repair, maintenance, rebuild, refurbishment, and restoration procedures for the 1999 Jeep Cherokee XJ.

Page Count:

Estimated 1500-2000 pages (typical for comprehensive factory service manuals of this era)

Manual Type:

Factory Service Manual (FSM) / Repair Manual

Language:

English

Format:

Likely printed paper format, often converted to PDF for digital distribution.

📖 Manual Coverage

Systems Covered:

Engine Mechanical, Engine Fuel & Emissions Control, Engine Cooling, Engine Lubrication, Ignition System, Starting System, Charging System, Clutch, Manual Transmission, Automatic Transmission, Transfer Case, Driveshafts & U-Joints, Axles & Differentials, Steering System, Suspension System (Front & Rear), Brake System (Front & Rear), Wheels & Tires, Body & Frame, Exterior Body Panels, Interior Trim & Upholstery, HVAC System, Electrical System (Wiring Diagrams, Components), Lighting, Instrumentation, Audio System, Restraint Systems (Airbags, Seatbelts).

Procedures Included:

Routine maintenance, scheduled maintenance, diagnostics, troubleshooting, component removal and installation, disassembly and assembly, rebuilding procedures, specifications, torque values, wiring diagrams, diagnostic trouble codes (DTCs), component testing, alignment procedures, brake bleeding, fluid changes, emissions testing and repair.

Technical Depth:

Comprehensive. Covers everything from basic oil changes and filter replacements to complete engine and transmission overhauls, driveline repairs, suspension and steering component replacement, brake system overhauls, and detailed electrical system diagnostics and repair. Includes diagnostic flowcharts and troubleshooting guides.

📊 Manual Specifications

File Format:

Likely PDF (if digital), ensuring searchability and easy navigation. If printed, it would be a bound book.

Print Quality:

High-quality reproductions of original factory documentation, including clear diagrams and schematics.

Binding Type:

Perfect binding or saddle-stitch for digital PDF format. For printed manuals, typically a durable perfect-bound or spiral-bound format for workshop use.

Paper Type:

Durable, high-grade paper suitable for workshop environments (if printed).

⚙️ Engine Specifications

Engine Options:

4.0L (242 cu in) OHV Inline-6 cylinder, 2.5L (150 cu in) OHV Inline-4 cylinder.

4.0L Horsepower:

Approximately 190 hp @ 4600 rpm (for 1999 model)

4.0L Torque:

Approximately 235 lb-ft @ 3000 rpm (for 1999 model)

Fuel Injection:

Multi-point fuel injection (MPI)

4.0L Engine Code:

ERH

4.0L Displacement Cc:

3960 cc

4.0L Bore Stroke Mm:

98.5 mm x 86.7 mm

4.0L Compression Ratio:

8.75:1

Cooling System Capacity 4.0L:

Approx. 10 quarts (9.5 liters)

🔧 Transmission

Standard Transmission:

4.0L: NV3550 5-speed manual transmission. 2.5L: AX-5 5-speed manual transmission.

Optional Transmission:

4.0L & 2.5L: AW-4 4-speed automatic transmission.

Transfer Case Options:

Command-Trac NV231 (part-time 2WD/4WD), Selec-Trac NV242 (full-time 4WD).

Nv3550 5 Speed Gear Ratios:

1st: 3.02, 2nd: 1.84, 3rd: 1.33, 4th: 1.00, 5th: 0.75, Rev: 3.02 (typical ratios, consult manual for exact)

Aw-4 4 Speed Auto Gear Ratios:

1st: 2.80, 2nd: 1.53, 3rd: 1.00, 4th: 0.75, Rev: 2.28 (typical ratios, consult manual for exact)

📐 Dimensions

Wheelbase:

101.4 inches (2576 mm)

Length:

164.5 inches (4178 mm)

Width:

69.9 inches (1775 mm)

Height:

63.7 inches (1618 mm)

Ground Clearance:

Approx. 8.7 inches (221 mm) for 4WD models (may vary slightly).

Curb Weight 4.0L Auto:

Approx. 3,450 - 3,700 lbs (1565 - 1678 kg)

Towing Capacity:

Up to 5,000 lbs (2268 kg) depending on configuration.

Gross Vehicle Weight Rating Gvw R:

Approx. 4,700 - 4,900 lbs (2132 - 2223 kg) depending on configuration.

Seating Capacity:

5 passengers (2 front, 3 rear)

Cargo Volume Behind Rear Seat:

Approx. 32.1 cu ft (0.91 m³)

Cargo Volume With Rear Seat Folded:

Approx. 68.0 cu ft (1.92 m³)

🛡️ Safety Features

NHTSA Rollover Rating:

4-Star (for 1999 models, typical for SUVs of this era)

Ii Hs Side Impact Rating:

Good (for driver and passenger side, typical for 1999 models tested by IIHS)

Active Safety Features:

Optional Anti-lock Braking System (ABS) on rear wheels (standard on some trims).

Passive Safety Features:

Driver and front passenger airbags, seat belts with pretensioners, reinforced unibody structure.

💡 Technology Features

Infotainment System:

Basic AM/FM radio with cassette player or optional CD player. Speaker configurations typically 4 or 6 speakers.

Driver Assistance Features:

Limited to optional ABS (rear wheels only).

Connectivity Options:

No advanced connectivity features like Bluetooth or USB ports. Basic antenna for radio reception.

🔧 Maintenance

Oil Change Interval:

Every 3,000 to 5,000 miles (4,800 to 8,000 km) or 6 months, depending on driving conditions and oil type used. Consult manual for specific recommendations.

Transmission Fluid Interval:

Every 30,000 to 60,000 miles (48,000 to 96,000 km) or 24-36 months, depending on usage and fluid type.

Coolant Flush Interval:

Every 30,000 miles (48,000 km) or 24 months.

Differential Fluid Change Interval:

Every 30,000 miles (48,000 km) or 24 months, especially if used for off-roading.

Engine Oil Specification:

API SG or higher, SAE 10W-30 recommended for most conditions. 4.0L engine typically requires 5 quarts (4.7 liters) with filter. Consult manual for exact capacity and viscosity.

Coolant Type:

Chrysler HOAT (Hybrid Organic Acid Technology) coolant, typically a 50/50 mix with distilled water. Color is often orange or pink.

Automatic Transmission Fluid:

ATF+3 (MS-9229). AW-4 transmission.

Manual Transmission Fluid:

NV3550: ATF+4 (MS-9602) or GL-3/GL-4 SAE 75W-90 gear oil. AX-5: GL-5 SAE 75W-90 gear oil. Consult manual for precise specification.

Transfer Case Fluid:

NV231/NV242: ATF+3 (MS-9229).

Power Steering Fluid:

ATF+3 (MS-9229) or equivalent.

Brake Fluid Type:

DOT 3.

Front Differential Fluid:

GL-5 SAE 75W-90 or 75W-140 (depending on load and usage). Consult manual.

Rear Differential Fluid:

GL-5 SAE 75W-90 or 75W-140 (depending on load and usage). Consult manual.

Common Issues:

Cracked cylinder heads (especially on early 4.0L engines, though less common by '99), head gasket leaks, radiator leaks, alternator failure, fuel pump issues, TPS (Throttle Position Sensor) failure, minor oil leaks (valve cover, oil pan), front track bar bushings wear, rear main seal leaks, O2 sensor failures, exhaust manifold cracks (especially on 4.0L).

Common Issues Electrical:

Wiper motor issues, window regulator failures, intermittent gauge cluster problems, grounds point corrosion.

Spark Plug Part Number:

Champion Copper Plus (e.g., RC12LYC) or equivalent. Consult manual for exact recommendation and gap.

Oil Filter Part Number:

Wix 51515, Fram PH8A, or equivalent.

Air Filter Part Number:

Wix WA10560, Fram CA8040, or equivalent.

📚 Vehicle History

Brand Heritage:

Jeep, a brand with a rich military and off-road heritage dating back to World War II, known for its ruggedness and capability.

Model Evolution Xj:

The XJ Cherokee was introduced in 1984 as the world's first compact SUV. It was revolutionary for its unibody construction, setting a new standard for comfort and on-road manners in the segment. The 1999 model represents the final years of the XJ generation, having received numerous updates and refinements over its long production run.

Major Updates Xj Generation:

Significant facelifts and updates occurred in 1991 (interior and exterior styling revisions) and 1997 (further exterior updates, improved NVH, and enhanced interior). The 1999 model is part of the final iteration of the XJ platform.

Production Period:

1984-2001 (North America for XJ), 1984-2002 (International for XJ).

Manufacturing Locations:

Toledo, Ohio, USA; Brampton, Ontario, Canada.