Target Audience:
Jeep Wrangler YJ owners, independent auto repair shops, mechanics
Value Proposition:
Provides dealership-level repair information for DIYers and professionals, enabling cost savings on maintenance and repairs.
Differentiation:
Vehicle-specific, not generic; contains exact procedures and specifications used by authorized dealers.
Content:
Step-by-step instructions, diagrams, illustrations, wiring schematics, and technical specifications.
Ease Of Use:
Clear and concise text combined with visual aids makes complex procedures accessible.
Primary Coverage:
Service, Repair, Troubleshooting, Diagnostics
Secondary Coverage:
Maintenance, Specifications, Wiring Schematics, Illustrations
Estimated Page Count:
Varies by specific publication, typically 800-1200+ pages for comprehensive factory-level manuals
Type:
Workshop Manual / Service Repair Manual
Accessibility:
Viewable on PC, Mac, and compatible mobile devices/e-readers
Printability:
Fully printable, allowing users to print specific pages or sections
Binding:
N/A (Digital Format)
Paper Quality:
N/A (Digital Format)
Powertrain:
Engine Mechanical System, Engine Electrical System, Emission Control System, Fuel System, Clutch System, Manual Transaxle System, Automatic Transaxle System, Driveshaft and Axle
Chassis:
Suspension System, Steering System, Brake System
Body And Interior:
Body (Interior and Exterior), Restraint System, Heating, Ventilation, Air Conditioning (HVAC)
Electrical:
Body Electrical System, Wiring Schematics
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication
Repair And Overhaul:
Engine rebuilds, transmission repairs, brake component replacement, suspension and steering system overhauls, body panel repair, HVAC system servicing
Troubleshooting And Diagnostics:
Step-by-step diagnostic procedures for various systems, fault code interpretation (where applicable), symptom analysis
Installation And Adjustment:
Component installation, alignment procedures, adjustments for various systems
Depth:
Comprehensive, covering basic to advanced repairs, suitable for professional mechanics and skilled DIYers
Engine Type:
Inline 4-cylinder, 2.5L (150 cu in) 'AMC 150'
Horsepower 1989 2.5L:
117 hp @ 4800 rpm (approx.)
Torque 1989 2.5L:
135 lb-ft @ 2800 rpm (approx.)
Fuel Delivery 2.5L:
Multi-Point Fuel Injection (MPFI)
Engine Type Optional 1989:
Inline 6-cylinder, 4.2L (258 cu in) 'AMC 258'
Horsepower 1989 4.2L:
112 hp @ 3200 rpm (approx.)
Torque 1989 4.2L:
210 lb-ft @ 2000 rpm (approx.)
Fuel Delivery 4.2L:
Throttle Body Injection (TBI)
Manual Transmission 1989:
Aisin-Warner AX-5 5-speed manual
Automatic Transmission 1989:
Chrysler 727 (TorqueFlite) 3-speed automatic
Transfer Case:
New Process NP231 (Command-Trac) 2-speed, part-time 4WD with 2.72:1 low range
NHTSA Ratings 1989 Yj Available:
Data for this specific year is often limited; known for robust construction.
Braking System:
Front disc brakes, rear drum brakes
Steering Type:
Power-assisted recirculating ball steering
Restraint System:
Seat belts (lap and shoulder belts standard), roll bar integrated into windshield frame and rear structure
Oil Change Interval Approx:
Every 3,000 miles or 3 months (synthetic blends may extend)
Air Filter Replacement Interval Approx:
Every 12,000-15,000 miles or annually
Spark Plug Replacement Interval Approx:
Every 30,000 miles (depending on plug type)
Engine Oil Type 2.5L:
API SF/CD, SAE 10W-30 or 10W-40 (refer to manual for specific viscosity based on temperature)
Engine Oil Type 4.2L:
API SF/CD, SAE 10W-30 or 10W-40 (refer to manual for specific viscosity based on temperature)
Transmission Fluid Ax5:
Dexron-III (or equivalent)
Transmission Fluid 727:
Dexron-III (or equivalent)
Transfer Case Fluid:
Dexron-III (or equivalent)
Coolant:
Ethylene glycol-based antifreeze (e.g., Mopar OAT or HOAT compatible) with a 50/50 mix with distilled water.
Yj Common Wear Items:
Leaf springs (on older CJ models, but YJ coil springs can develop issues), U-joints, clutch wear, exhaust system corrosion, dashboard electrical issues, radiator leaks, aging rubber bushings.
Yj Engine Specific Concerns:
2.5L: Potential oil consumption with age. 4.2L: Known for robust torque but can be less refined; head gasket issues are not uncommon on high-mileage examples.
Jeep Legacy:
Direct descendant of the original Willys Jeep military vehicles, known for off-road capability and ruggedness.
Yj Introduction:
The YJ generation, introduced for the 1987 model year, replaced the CJ series. It was the first Jeep to feature the modern coil-spring suspension system.
Yj Key Changes For 1989:
Minor updates often included revised interior trim, optional features, and potential running production changes.
Yj Production Years:
1987-1995
Manufacturing Location Yj:
Toledo, Ohio, USA
