Description
Factory Jeep Grand Cherokee Workshop Manual (1999-2004)
This is the official factory-level service manual for the second-generation Jeep Grand Cherokee WJ, covering every model year sold in North America from 1999 through 2004-including all trim levels from the base Laredo up to the Overland.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 4.0L PowerTech inline-6 (195 hp), 4.7L PowerTech V8 (235-265 hp), 4.7L High Output V8 |
| Diesel | N/A |
| Transmissions | 42RE 4-speed automatic, 45RFE 4-speed automatic, 545RFE 5-speed automatic |
| Drive | RWD (4×2) and 4WD configurations |
| Model Years | 1999, 2000, 2001, 2002, 2003, 2004 |
| Badge Twins | N/A |
Common Grand Cherokee Repairs Covered
| System | Procedures |
|---|---|
| Rear Main Seal / 4.0L Oil Leaks | Rear crankshaft seal replacement, valve cover gasket, and oil pan reseal procedures for the inline-6 |
| 4.7L V8 Cylinder Head / Cooling | Head gasket inspection and replacement, coolant crossover pipe service, thermostat and water pump R&R |
| Transfer Case (NP231 / NV247) | Fluid service, chain and sprocket inspection, front output shaft seal replacement |
| ABS / Brake System | Brake caliper, rotor, and master cylinder replacement; ABS sensor diagnosis and wheel speed sensor service |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does the 4.7L V8 in these Grand Cherokees have a reputation for head gasket issues?
The 4.7L PowerTech V8 used in the 1999-2004 WJ can develop coolant leaks at the head gaskets, often linked to overheating events or coolant crossover pipe failures. This manual provides the complete cylinder head removal sequence, torque specifications, and reassembly procedures needed to address the repair correctly.
Which transfer cases are fitted to the WJ Grand Cherokee?
Depending on trim and drivetrain option, the WJ was equipped with either the NP231 Command-Trac part-time 4WD unit or the NV247 Quadra-Trac II full-time AWD system. Both are covered in full, including fluid capacities, chain wear inspection, and seal replacement procedures.
Does this manual include wiring diagrams and electrical diagnostics?
Yes. Full wiring diagrams are included for all circuits-engine management, charging, lighting, climate control, power accessories, and the security system. Connector pinouts and wire color codes are shown throughout, supporting systematic fault diagnosis on any electrical system in the vehicle.
What format is the manual?
The manual is delivered as a PDF file. It is fully searchable, compatible with Windows, Mac, iOS, and Android devices, and individual pages can be printed for use in the shop. Download is available immediately after purchase with no expiry on re-downloads.
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