Jeep Cherokee XJ 1998 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: Jeep Model: Cherokee Model Code: XJ Year: 1998 👋 Introduction Market Position Segment: Compact SUV Reputation: Renowned for its robust off-road capability, reliable mechanicals, and...

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标签: 1998 Car Cars Cherokee XJ Jeep Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Cherokee

Model Code:

Year:

👋 Introduction

Market Position

Segment:

Compact SUV

Reputation:

Renowned for its robust off-road capability, reliable mechanicals, and classic Jeep styling.

Competitive Analysis

Competitors 1998:

Toyota RAV4, Honda CR-V, Ford Explorer, Chevrolet Blazer.

Differentiation:

True body-on-frame construction, superior 4x4 systems (Command-Trac, Selec-Trac), and legendary 4.0L inline-six engine.

Key Features

Platform:

Unibody construction, a significant departure from traditional body-on-frame SUVs, contributing to lighter weight and better on-road manners.

Off Road Prowess:

Strong aftermarket support for modifications, excellent approach/departure angles, and capable 4x4 systems.

Engine Options:

The iconic 4.0L High Output inline-six engine is a hallmark of this era.

📋 Manual Details

Coverage Areas

Primary Coverage:

All workshop procedures for the 1998 Jeep Cherokee XJ

Diagnostic Coverage:

Includes detailed diagnostic flowcharts and troubleshooting for all systems.

Page Count

Estimated Pages:

1500-2000 (typical for comprehensive factory service manuals)

Manual Type

Type:

Factory Service Repair Manual

Equivalent:

Official dealer workshop manual

Language

Language:

English

Format

Format:

Likely PDF, printable and searchable

📖 Manual Coverage

Systems Covered

Powertrain:

Engine (4.0L I6, 2.5L I4), transmission (AW4 4-speed auto, NV3550 5-speed manual), transfer case (NP231, NP242).

Chassis:

Suspension (leaf spring rear, coil spring front, various 4x4 configurations), steering (power steering system), brakes (disc/drum, ABS availability).

Electrical:

Full wiring diagrams, lighting, accessories, ignition system, charging system, starting system, body control modules.

Body And Trim:

Body panel removal and installation, interior trim, glass, doors, windows, bumpers, exterior trim components.

Climate Control:

HVAC system diagnosis and repair, A/C system servicing.

Fuel System:

Fuel tank, pump, injectors, lines, evaporative emissions control (EVAP).

Procedures Included

Maintenance:

Scheduled maintenance intervals, fluid changes (oil, coolant, transmission, differential, brake), filter replacements, spark plug replacement.

Engine Repair:

Engine overhaul, head gasket replacement, timing chain, oil pump, piston/ring replacement, cylinder head assembly.

Transmission Repair:

Automatic transmission overhaul (AW4), manual transmission rebuild (NV3550), clutch service, transfer case servicing.

Drivetrain:

Axle servicing, CV joint replacement, driveshaft U-joints, differential servicing.

Suspension Steering:

Shock/strut replacement, control arm bushing replacement, ball joint service, tie rod end replacement, steering gear overhaul.

Brake System:

Brake pad/shoe replacement, caliper/wheel cylinder rebuilding, brake line replacement, ABS component diagnosis.

Electrical Diagnostics:

Component testing, circuit tracing, diagnostic trouble code (DTC) interpretation, sensor testing.

Technical Depth

Depth:

Comprehensive; covers basic maintenance to complete engine and transmission overhauls, advanced electrical diagnostics, and body repairs.

Diagnostic Tools:

References factory diagnostic tools and procedures where applicable.

📊 Manual Specifications

File Format

Digital Format:

PDF (Portable Document Format)

Searchability:

High (text-searchable for quick access to information)

Print Quality

Printability:

High (designed for clear printing of text and diagrams)

Binding Type

Physical Binding:

N/A (digital format)

Paper Type

Digital Paper Simulation:

N/A (digital format)

⚙️ Engine Specifications

Primary Engine

Engine 1 Displacement:

4.0 Liters (3964 cc)

Engine 1 Configuration:

Inline-6 (I6)

Engine 1 Valvetrain:

Overhead Valve (OHV), 12 valves (2 per cylinder)

Engine 1 Bore X Stroke:

3.875 in x 3.500 in (98.4 mm x 88.9 mm)

Engine 1 Compression Ratio:

8.8:1

Engine 1 Horsepower:

181 hp @ 4750 RPM (approx.)

Engine 1 Torque:

220 lb-ft @ 3250 RPM (approx.)

Secondary Engine

Engine 2 Displacement:

2.5 Liters (2469 cc)

Engine 2 Configuration:

Inline-4 (I4)

Engine 2 Valvetrain:

Overhead Valve (OHV), 8 valves (2 per cylinder)

Engine 2 Horsepower:

124 hp @ 4800 RPM (approx.)

Engine 2 Torque:

147 lb-ft @ 3200 RPM (approx.)

Performance

Fuel Type:

Unleaded gasoline

Fuel System

Injection Type:

Sequential Multi-Port Fuel Injection (MPI)

Ignition System:

Distributorless Ignition System (DIS) on 4.0L, Distributor Ignition System on 2.5L.

Cooling System

Coolant Type:

Ethylene Glycol (50/50 mix with distilled water)

Thermostat Rating:

195°F (typical)

🔧 Transmission

Standard

Transmission 1:

4-speed Automatic Transmission (Model: AW4)

Optional

Transmission 2:

5-speed Manual Transmission (Model: NV3550)

Features

Aw4 Features:

Electronically controlled, known for its durability and smooth shifting.

Nv3550 Features:

Robust manual gearbox, often found in higher-trim or off-road focused models.

Fluid Specs

Automatic Transmission Fluid:

Mopar ATF+3 (or equivalent)

Manual Transmission Fluid:

Mopar Manual Transmission Lubricant (or equivalent 75W-90 GL-3/GL-4)

📐 Dimensions

Exterior

Wheelbase:

101.4 inches (2576 mm)

Length:

167.5 inches (4255 mm)

Width:

69.9 inches (1775 mm)

Height:

62.1 inches (1577 mm) (without roof rack)

Ground Clearance:

Variable, typically 8-9 inches depending on suspension and tire size.

Weights

Curb Weight Min:

3170 lbs (1438 kg) (2.5L 2WD)

Curb Weight Max:

3700 lbs (1678 kg) (4.0L 4WD)

Towing Capacity:

Up to 5000 lbs (2268 kg) with proper towing package and engine.

Payload Capacity:

Approx. 1000-1200 lbs (454-544 kg)

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance:

3-star (typical for 1998 era SUVs, but varies by configuration).

Active Features

Available (typically on 4.0L models, rear-wheel or 4x4).

Passive Features

Airbags:

Driver and passenger front airbags.

Seatbelts:

Front 3-point seatbelts with pretensioners, rear 3-point seatbelts.

Construction

Frame Type:

Unibody construction.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM/Cassette or CD player, optional premium sound systems.

Display:

Basic dashboard instrumentation, no modern touchscreen or navigation.

Driver Assistance

Cruise Control:

Standard on most trims.

Optional as mentioned in safety.

Connectivity

Connectivity Features:

No integrated Bluetooth, USB, or smartphone integration from the factory.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-5,000 miles or 3-6 months (depending on driving conditions and oil used).

Air Filter Replacement:

Every 12,000-15,000 miles or annually.

Spark Plug Replacement:

4.0L: Approx. 100,000 miles (platinum/iridium plugs), 2.5L: Approx. 30,000 miles (copper plugs).

Coolant Flush:

Every 30,000-50,000 miles or 2-3 years.

Transmission Fluid Change:

Automatic: 30,000-50,000 miles. Manual: 50,000-75,000 miles.

Fluid Specifications

Engine Oil Type:

SAE 10W-30 (API Service SG or SH)

Engine Oil Capacity:

4.0L: 6 US quarts (5.7 L) with filter. 2.5L: 5 US quarts (4.7 L) with filter.

Coolant Capacity:

4.0L: 12.0 US quarts (11.4 L). 2.5L: 10.0 US quarts (9.5 L).

Known Issues

Common Problems 4 0L:

Cracked cylinder heads (later models), cam position sensor failure, rear main seal leaks, exhaust manifold cracks.

Common Problems General:

Death Wobble (steering/suspension alignment issue), rust (especially on rocker panels and rear quarters), failing heater core, electrical gremlins.

Common Issues Aw4:

Solenoid issues, torque converter lock-up problems.

Recommended Parts Filters

Oil Filter Part Number:

Wix 51515 / Fram PH8A / Mopar MO-090 (example, verify for specific engine).

Air Filter Part Number:

Wix 42700 / Fram CA2700 / Mopar PA100024 (example, verify).

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep has a long history dating back to World War II, synonymous with ruggedness and off-road capability.

Model Evolution

Xj Generation:

The XJ Cherokee was a groundbreaking vehicle, pioneering the compact SUV segment with its unibody construction and advanced 4x4 systems.

Xj Lifespan:

1984-2001, making it one of the longest-running automotive platforms.

Production

Manufacturer:

American Motors Corporation (AMC) until 1987, then Chrysler Corporation.

Manufacturing Location:

Toledo, Ohio, USA.

🏆 Awards & Recognition

Recognitions

Automotive Journalism Awards:

Consistently ranked highly by automotive publications like Four Wheeler Magazine and Petersen's 4-Wheel & Off-Road for its off-road prowess and durability.

Ratings

Durability Ratings:

Widely regarded as one of the most durable and long-lasting SUVs ever produced, especially the 4.0L models.

Certifications

Certification Status:

N/A (Focus is on repair and maintenance, not product certification).