Jeep TJ Wrangler 1997/1998/1999 Service Repair Manual

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🏷️ Basic Information Identification Make: Jeep Model: Wrangler Generation Code: TJ Model Years Covered: 1997, 1998, 1999 Codes Vehicle Platform: Jeep TJ platform 👋 Introduction Market Position Vehicle Segment: Compact...

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类型: Car

斯库: 261989

标签: 1997 1998 1999 Car Cars Jeep Misc TJ Wrangler

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Description

🏷️ Basic Information

Identification

Make:

Model:

Wrangler

Generation Code:

Model Years Covered:

1997, 1998, 1999

Codes

Vehicle Platform:

Jeep TJ platform

👋 Introduction

Market Position

Vehicle Segment:

Compact SUV / Off-road vehicle

Target Audience:

Off-road enthusiasts, recreational vehicle owners, individuals seeking rugged and capable utility

Competitive Analysis

Key Competitors Era:

Toyota Tacoma, Nissan Frontier, Ford Ranger (though Wrangler is more specialized for off-road)

Key Features

Design Philosophy:

Body-on-frame construction, solid front axle (initially), coil spring suspension, removable top (soft or hard), short wheelbase for maneuverability

Off Road Capability:

Renowned for its off-road prowess, featuring good ground clearance, approach/departure angles, and available four-wheel-drive systems

📋 Manual Details

Coverage Areas

Manual Type:

Factory Service Workshop Manual

Language:

English

Format:

Digital Download (PDF assumed from description)

Coverage Scope:

Comprehensive repair and service procedures, diagnostics, specifications

Page Count

Estimated Page Count:

1500+

📖 Manual Coverage

Systems Covered

Powertrain:

Engine mechanical, fuel system, lubrication, cooling system, exhaust system, engine management

Transmission:

Manual transmission (AX-5, NV3550), Automatic transmission (30RH, 42RE)

Drivetrain:

Transfer case (NV231, NV241OR), Axles (Dana 30 front, Dana 35c/Dana 44 rear), Drive shafts, CV joints

Suspension:

Front and rear suspension systems, coil springs, shock absorbers, control arms, sway bars

Steering:

Power steering system, steering column, steering gear/rack and pinion

Brakes:

Front and rear brake systems (disc/drum or disc/disc), ABS (if equipped), parking brake

Electrical:

Battery, charging system, starting system, ignition system, lighting, wiring diagrams, fuses, relays

Body And Interior:

Body panels, doors, windows, seats, dashboard, HVAC system, interior trim

Chassis:

Frame, body mounting, underbody components

Procedures Included

Maintenance:

Routine maintenance checks, oil changes, filter replacements, fluid checks and top-offs

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs) and their meaning, symptom-based diagnosis

Repair:

Step-by-step repair procedures for all major vehicle systems, component replacement, adjustments

Disassembly And Assembly:

Detailed instructions for removing and reinstalling major components and sub-assemblies

Specifications:

Torque specifications, clearances, tolerances, fluid capacities, pressure readings

Wiring Diagrams:

Comprehensive electrical wiring schematics for all vehicle systems

Technical Depth

Depth Level:

Factory-level technical detail, suitable for professional technicians and advanced DIY enthusiasts

Diagnostic Capabilities:

Includes information on using diagnostic tools and interpreting scan data

Special Tools:

Identifies and describes any specialized tools required for specific repair procedures

📊 Manual Specifications

File Format

File Type:

PDF (Portable Document Format)

Searchability:

Text-searchable (typical for factory manuals)

Print Quality

Graphics Resolution:

High-resolution, suitable for clear viewing of diagrams and illustrations

Binding Type

Binding Style:

N/A (Digital Download)

Paper Type

Paper Quality:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code 2.5L:

4-cylinder, 2.5L (150 cu in) AMC 150 engine

Displacement 2.5L:

2469 cc (2.5 liters)

Horsepower 2.5L:

119 hp @ 4700 rpm (approximate)

Torque 2.5L:

145 lb-ft @ 3500 rpm (approximate)

Engine Code 4.0L:

6-cylinder, 4.0L (242 cu in) AMC 242 engine (High Output)

Displacement 4.0L:

3956 cc (4.0 liters)

Horsepower 4.0L:

182 hp @ 4600 rpm (approximate)

Torque 4.0L:

220 lb-ft @ 3200 rpm (approximate)

Performance

Fuel Type:

Unleaded gasoline

Fuel System

Induction:

Multi-point fuel injection (MPI)

Fuel Pump Pressure:

31-39 psi (typical)

Engine Management

Ignition System:

Distributorless Ignition System (DIS) or Distributor Ignition System (early models)

🔧 Transmission

Standard

Standard Transmission 2.5L:

5-speed manual (AX-5)

Standard Transmission 4.0L:

5-speed manual (NV3550)

Optional

Optional Transmission 2.5L:

3-speed automatic (30RH)

Optional Transmission 4.0L:

4-speed automatic (42RE)

Features

Transfer Case:

NV231 Command-Trac (standard), NV241OR (Rubicon models - optional)

Transfer Case Gear Ratios:

NV231: 2.72:1 (low range); NV241OR: 4.0:1 (low range)

Fluid Specs

Manual Transmission Fluid Ax5:

API GL-3 or GL-4, SAE 75W-90 (check manual for specific)

Manual Transmission Fluid Nv3550:

Mopar Manual Transmission Lubricant (or equivalent, refer to manual)

Automatic Transmission Fluid:

Mopar ATF+4 (or equivalent, refer to manual for specific)

Transfer Case Fluid:

NP231: Mopar NV231 Transfer Case Lubricant (or equivalent); NP241OR: Mopar NV241OR Transfer Case Lubricant (or equivalent, refer to manual for specific)

📐 Dimensions

Exterior

Wheelbase:

93.4 inches (2372 mm)

Length:

150.0 - 161.4 inches (3810 - 4099 mm) (depending on bumper/spare tire)

Width:

66.5 inches (1689 mm)

Height:

70.3 - 70.9 inches (1786 - 1801 mm) (depending on top)

Ground Clearance:

8.3 inches (211 mm) (stock, approximate)

Weights

Curb Weight:

3300 - 3600 lbs (approximate, depending on engine/options)

Gross Vehicle Weight Rating:

Approx. 4850 - 5000 lbs (check specific VIN)

Towing Capacity:

2000 lbs (approximate, check specific VIN)

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance:

3/5 stars (typical for SUVs of this era, though specific TJ ratings may vary and are less prominent than frontal/side)

Active Features

Optional on some models, standard on later years/specific trims

Passive Features

Airbags:

Driver and passenger front airbags

Seatbelts:

Three-point front seatbelts, two-point or three-point rear seatbelts

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM stereo with cassette or CD player (optional)

Speakers:

Typically 2 or 4 speakers

Driver Assistance

Cruise Control:

Available as an option or standard on higher trims

Connectivity

Power Accessories:

Power windows, power door locks, power mirrors (optional, less common than later models)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-5,000 miles or 6 months (refer to manual for exact)

Engine Oil Filter Replacement:

At every oil change

Air Filter Replacement:

Every 15,000-30,000 miles or as needed (inspect regularly)

Spark Plug Replacement 4.0L:

Approx. 100,000 miles (depending on plug type)

Transmission Fluid Change Auto:

Every 30,000-60,000 miles (check manual)

Transfer Case Fluid Change:

Every 30,000-60,000 miles (check manual)

Fluid Specifications

Engine Oil Type 4.0L:

10W-30 or 10W-40 (API classification: SJ or higher, refer to manual for exact)

Engine Oil Type 2.5L:

10W-30 (API classification: SJ or higher, refer to manual for exact)

Coolant Type:

Ethylene glycol-based coolant, typically a green or yellow type (refer to manual for specific Mopar or equivalent)

Brake Fluid Type:

DOT 3

Known Issues

Common Issue Oil Leaks:

Valve cover gasket, oil pan gasket, rear main seal (especially on higher mileage 4.0L)

Common Issue Cooling System:

Radiator leaks, water pump failure, heater core issues

Common Issue Transmission:

Clutch wear (manual), automatic transmission shifting issues (e.g., 3-4 shift in 42RE)

Common Issue Suspension:

Worn control arm bushings, track bar issues, shock absorber wear

Common Issue Electrical:

Wiper motor failure, power window/lock issues, instrument cluster problems

Common Issue Tcu Modules:

Failure of the Transmission Control Unit (TCU) can affect shifting and performance.

Common Issue Ignition Coils:

Failure of ignition coils on the 4.0L engine can cause misfires and rough running.

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Continuation of the Jeep lineage, known for its ruggedness and off-road capability since WWII

Model Evolution

Tj Introduction:

Introduced for the 1997 model year, replacing the YJ Wrangler. Key feature was the return to coil springs and a generally more refined chassis.

Tj Distinguishing Features:

Quadra-Coil suspension, flush-mounted taillights, round headlights, more integrated dashboard design compared to YJ.

Production

Production Location:

Toledo, Ohio, USA

Production Years Tj:

1997-2006

🏆 Awards & Recognition

Recognitions

Off Road Acclaim:

Consistently recognized for its off-road capability and iconic design. Often featured in enthusiast publications and award lists for off-road vehicles.