1999 Jeep Grand Cherokee WJ Service Manual

1999 Jeep Grand Cherokee WJ Factory Manual Preview

• Covers 1999 Jeep Grand Cherokee WJ models equipped with 4.0L, 4.7L V-8 gasoline engines, and the 3.1L diesel engine
• Original OEM publication, Form No. 81-370-9118 (internal document reference)
• Features 120+ diagnostic figures, exploded diagrams, and detailed torque tables for the 14-series fuel system and 11-series exhaust system
• Delivered as a direct download the moment payment clears
• Stored against your account so you can retrieve it after a hard-drive loss
• Full-text search finds any part number in seconds
• Laid out for standard letter and A4 printing
• This 1999 publication provides the baseline specification data used for the WJ Grand Cherokee platform service procedures

Technical Scope and Documentation

The 1999 Jeep Grand Cherokee WJ service manual provides a structured reference for fuel and exhaust systems. The manual details the specific maintenance schedules, including both the normal Schedule A and the severe-service Schedule B requirements. It defines the necessary specifications for engine oil, coolant capacities, and transmission fluid, while outlining the diagnostic procedures for the Powertrain Control Module (PCM) and fuel delivery components. This documentation serves as a guide for identifying correct lubricant types and service intervals for the WJ platform.

Specification and Data Highlights

The technical data section covers exhaust manifold, catalytic converter, and muffler torque specifications, often cited at 31 Nm (23 ft. lbs.) or 61 Nm (45 ft. lbs.) depending on the connection. Fuel system reference values include the 49.2 psi operating pressure and injector resistance measurements. Fuel pressure leak down tests indicate that pressure should not fall below 30 psi for five minutes. An official OEM workshop manual covering the 1999 Jeep Grand Cherokee WJ, documenting fuel injection, exhaust, and cooling specifications for the WJ build.