Positioning:
Essential resource for Jeep XJ owners seeking to perform their own maintenance and repairs, appealing to enthusiasts and DIY mechanics.
Value Proposition:
Provides comprehensive technical data, diagnostic procedures, and repair instructions typically found in OEM service manuals, offering significant cost savings over professional dealership services.
Detail Level:
Extremely detailed, covering all aspects of vehicle repair and maintenance.
Diagnostic Focus:
Includes extensive diagnostic procedures, vital for identifying and resolving complex issues.
Primary Coverage:
Full Service Repair, Maintenance, Rebuild, Refurbishment, Restoration
Estimated Page Count:
High (Specific count not provided, but described as 'very detailed')
Type:
Service and Repair Manual
Format:
Print (implied by product name and description)
Engine:
Comprehensive coverage including diagnostics, repair, rebuild procedures, fuel system, ignition system, cooling system, exhaust system.
Transmission:
Detailed repair, maintenance, and overhaul procedures for both manual and automatic transmissions.
Drivetrain:
Axles, differentials, driveshafts, CV joints, four-wheel-drive system operation and repair.
Suspension:
Front and rear suspension components, steering system, shock absorbers, springs, bushings, alignment.
Brakes:
Hydraulic system, disc and drum brake components, ABS (if equipped), parking brake, fluid specifications.
Electrical:
Wiring diagrams, lighting system, charging system, starting system, ignition, accessories, diagnostic procedures.
Body And Chassis:
Body panels, interior trim, doors, windows, glass, frame, rust repair considerations.
HVAC:
Heating, ventilation, and air conditioning system diagnosis and repair.
Maintenance:
Routine oil changes, filter replacements, fluid checks and changes, tune-ups, lubrication schedules.
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, symptom-based diagnostics.
Repair:
Step-by-step instructions for component removal, installation, and adjustment across all vehicle systems.
Rebuild:
Detailed procedures for rebuilding major components such as engines, transmissions, and differentials.
Depth:
Comprehensive. Covers everything from basic maintenance to complete overhauls and advanced diagnostics.
Digital Format:
Likely PDF for digital versions, but product specifies printed format.
Print Quality:
Professional quality printing with clear diagrams and text (assumed for a 'full service repair manual').
Binding:
Likely bound for durability in a workshop environment (e.g., spiral-bound, perfect bound).
Paper Type:
Durable, high-quality paper suitable for workshop use.
Engine Options 1990:
4.0L Inline 6-Cylinder (242 cu in) OHV MPI
Horsepower 4.0L:
Approximately 177 hp @ 4,700 rpm
Torque 4.0L:
Approximately 220 lb-ft @ 3,250 rpm
Fuel Delivery:
Multi-Point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline
Block Material:
Cast Iron
Bore X Stroke 4.0L:
3.875 in x 3.414 in (98.4 mm x 86.7 mm)
Compression Ratio 4.0L:
8.8:1
Ignition System:
Distributorless Ignition System (DIS) with coil packs
Wheelbase Standard:
101.4 inches (2576 mm)
Length:
167.4 inches (4252 mm)
Width:
69.4 inches (1763 mm)
Height:
64.4 inches (1636 mm)
Curb Weight Est:
Approximately 3,300 - 3,600 lbs (1497 - 1633 kg), varies by configuration.
Cargo Volume Behind Rear Seat:
Approximately 30.5 cu ft (0.86 m³)
Cargo Volume Max:
Approximately 69.0 cu ft (1.95 m³)
NHTSA Rollover Resistance:
Not directly applicable for this era; focus on vehicle stability and center of gravity.
Braking System:
Front disc brakes, rear drum brakes. Optional ABS available.
Seat Belts:
Lap and shoulder belts, front and rear.
Airbags:
Driver's side airbag standard for 1990.
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions (consult manual for specific recommendation).
Air Filter Replacement:
Every 12,000-15,000 miles or as needed based on driving environment (consult manual).
Coolant Flush Interval:
Every 30,000 miles or 2-3 years (consult manual for exact specification and type).
Engine Oil Spec:
10W-30 or 10W-40 API SG or higher (for 4.0L engine, consult manual).
Engine Oil Capacity 4.0L:
5 US quarts (4.7 Liters) with filter change.
Coolant Type:
Ethylene glycol-based antifreeze (e.g., Mopar Antifreeze/Coolant 10 Year/100,000 Mile Formula or equivalent).
Common Xj Issues:
Head gasket leaks (especially 4.0L), catalytic converter issues, radiator leaks, front sway bar disconnects (if equipped), rust on unibody structure, rear main seal leaks, door handle failures.
Preventative Maintenance Focus:
The manual will likely detail how to inspect and address common wear items and potential failure points proactively.
Jeep Legacy:
Jeep's reputation for ruggedness, off-road capability, and durability.
Xj Introduction:
The XJ Cherokee was introduced in 1984 as a revolutionary unibody SUV, a departure from traditional body-on-frame construction. It was praised for its compact size, on-road manners, and off-road prowess.
1990 Updates:
The 1990 model year saw the introduction of the driver's side airbag as standard equipment and continued the refinement of the popular 4.0L inline-six engine.
Production Era:
1984-2001
Manufacturing Location:
Toledo, Ohio, USA
