1999-2004 Jeep Grand Cherokee (WJ) OEM Service & Repair Manual

1999-2004 Jeep Grand Cherokee (WJ) OEM Service & Repair Manual

Engines covered:

• 4.0L AMC 242 Inline-6
• 4.7L Chrysler PowerTech V8
• 4.7L Chrysler PowerTech HO V8
• 2.7L Mercedes-Benz OM612 Turbo CRD Inline-5 (Diesel)

The 1999-2004 Jeep Grand Cherokee (WJ) OEM Service & Repair Manual is the same factory-issued guide used by Jeep dealership technicians. It covers all major systems across WJ-platform Grand Cherokees — whether you’re working on the classic 4.0L straight-six or the high-output 4.7L V8. Every procedure is laid out with factory specs, diagnostic routines, and component-level service info.

Whether you're a certified mechanic or a capable DIYer keeping your WJ on the road, this manual is a reliable reference for everything from suspension work to full engine rebuilds — with the kind of clarity and accuracy you'd expect from a dealer-level guide.

What’s Inside the 1999–2004 Jeep Grand Cherokee (WJ) Service Manual

General Information & Scheduled Maintenance

Factory maintenance schedules, fluid specs, jacking points, lift procedures, and service interval charts. Includes setup guidelines used during new vehicle prep and delivery inspections.

Suspension System Service

Repair procedures for front coil spring and rear link-coil suspension systems. Includes shock replacement, bushing service, ride-height inspection, alignment specs, and handling-related diagnostics.

Differentials, Driveline & 4WD Systems

Service coverage for front and rear axles, driveshafts, U-joints, and both part-time and full-time 4WD transfer cases. Includes NV247, NV242, and NV231 system diagnostics and service procedures.

Brake System Diagnostics & Repair

Instructions for hydraulic brake service, ABS module diagnostics, brake pad and rotor replacement, caliper inspection, parking brake adjustment, and system bleeding procedures.

Cooling System & Overheat Diagnostics

Service steps for radiator removal, water pump replacement, fan clutch operation, thermostat testing, and coolant flow diagnostics. Includes inspection points for common WJ cooling issues.

Engine Mechanical & Powertrain Service

Complete service procedures for the 4.0L I6, 4.7L V8, and 2.7L diesel engines. Covers timing, valve train, bottom end rebuilds, cylinder head torque specs, oiling system checks, and related diagnostics.

Fuel System & Emissions Components

Diagnostics and repair procedures for fuel injectors, fuel rail, fuel pump, tank service, and evaporative emissions systems. Includes EVAP diagnostics, purge solenoid checks, and leak testing.

Transmission & Transfer Case Repair

Factory service steps for automatic transmissions (45RFE, 545RFE, etc.) including fluid change, filter replacement, solenoid service, and electronic shift diagnostics. Also includes transfer case removal and rebuild procedures.

Steering System Repairs

Service and inspection for steering gearboxes, power steering pumps, tie rods, pitman arms, and steering columns. Includes bleed procedures and on-vehicle diagnostics for steering feel and noise issues.

Exhaust & Emissions Control Systems

Service procedures for catalytic converters, mufflers, exhaust manifolds, hangers, and sensors. Includes emission control system diagnostics to ensure compliance and proper performance.

Electrical System Diagnostics

Coverage for batteries, alternators, starters, fuses, relays, and power distribution. Includes electronic module diagnostics, sensor testing, and network communication troubleshooting using factory specs and charts.

Body & Interior Component Service

Instructions for removing and reinstalling doors, mirrors, seats, trim panels, interior accessories, and body-mounted components. Covers structural hardware, glass, and latch mechanisms.

Heating, Ventilation & A/C (HVAC) Systems

Step-by-step service for blower motors, heater cores, control heads, actuators, and A/C compressors. Includes refrigerant system diagnostics and air distribution troubleshooting.

Restraint & Safety Systems

Airbag (SRS) service procedures, crash sensor diagnostics, seatbelt system checks, and system reset steps after module replacement. Covers both driver and passenger restraint systems.

Security & Anti-Theft Systems

Service instructions for the factory vehicle security system, key fob programming, immobilizer diagnostics, and alarm module replacement.

Instrument Cluster, Lighting & Accessories

Covers lighting system repair (interior and exterior), headlamp service, washer/wiper system diagnostics, instrument panel removal, and audio system component replacement.

Why Choose This Jeep Grand Cherokee WJ Service Manual?

This OEM repair manual delivers dealer-grade procedures for every major system — no fluff, no filler. Whether you're troubleshooting ABS faults, rebuilding a transfer case, or swapping out suspension parts, it gives you the correct specs, torque values, and step-by-step logic to get it done right the first time.

Format & Compatibility

Provided as a high-resolution, fully searchable PDF. Compatible with Windows, macOS, Linux, iOS, and Android. Easily viewable on desktops, laptops, tablets, or mobile devices — or printable for garage use.

Download the 1999–2004 Jeep Grand Cherokee (WJ) Repair Manual Now

Whether you're restoring a classic WJ or keeping your daily driver in shape, this manual gives you the factory-tested procedures and information trusted by Jeep technicians — right at your fingertips.

Language: English
Compatibility: Windows, macOS, Linux, iOS, Android
Requirements: PDF Reader (e.g., Adobe Reader)