🏷️ Basic Information

Make:

Mazda

Model:

B-Series

Generation:

Second Generation (UN Series)

Internal Model Codes:

UN Series (Commonly shared with Ford Ranger FE-3 and G6 platform)

👋 Introduction

Vehicle Type:

Compact Pickup Truck

Segment Competitors:

Ford Ranger, Toyota Tacoma, Nissan Frontier, Chevrolet S-10, GMC Sonoma

Value Proposition:

Durable, reliable, and practical compact pickup truck, often shared platform with Ford Ranger, offering good value for money

📋 Manual Details

Years Covered:

1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006

Total Pages:

1000+

Type:

Workshop Service Repair Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Engine:

Comprehensive engine repair, disassembly, assembly, diagnosis, and overhaul procedures

Transmission:

Manual and Automatic transmission service, repair, and diagnosis

Drivetrain:

Front-Wheel Drive (FWD) and Rear-Wheel Drive (RWD) systems, differentials, axles, and driveshafts

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, and alignment specifications

Steering:

Power steering system, steering column, rack and pinion or steering box, and related components

Brakes:

Front and rear brake systems (disc and drum), ABS, hydraulic components, and parking brake

Electrical:

Complete electrical system, wiring diagrams, battery, charging system, ignition system, lighting, and accessories

Fuel System:

Fuel tank, fuel pump, fuel injectors, fuel lines, and emissions control systems

Cooling System:

Radiator, water pump, thermostat, cooling fans, and heater core

Exhaust System:

Exhaust manifolds, catalytic converter, muffler, and exhaust pipes

Body And Chassis:

Body panel removal/installation, interior trim, doors, windows, and chassis components

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks, and tune-ups

Troubleshooting:

Diagnostic procedures for common issues, fault finding, and symptom-based repairs

Repair:

Step-by-step repair instructions for all major vehicle systems and components

Disassembly Assembly:

Detailed guides for component removal, disassembly, cleaning, inspection, and reassembly

Adjustments:

Precise adjustment procedures for brakes, clutch, ignition timing, and engine idle

Installation:

Instructions for installing new or reconditioned parts and accessories

Depth:

Comprehensive, from basic maintenance to complete engine and transmission rebuilds

Diagrams:

Pictorial diagrams, exploded views, drawings, and photographs for clarity

Tool References:

Identification and usage instructions for necessary special service tools

Torque Values:

Detailed torque specifications for all critical fasteners

Wear Limits:

Serviceable wear limits and tolerances for various components

📊 Manual Specifications

PDF Quality:

High-resolution, printable pages

Printability:

Yes, all pages are printable

Delivery Method:

Instant PDF Download

Digital Format:

PDF

Operating Systems:

Windows, Mac, Linux OS

Software Requirement:

Adobe Reader

⚙️ Engine Specifications

Engine Options:

2.5L (WL-T Turbo Diesel), 2.5L (J5), 3.0L (FE-3/G6) Gasoline

Horsepower Range:

Approx. 115-148 HP (Gasoline), Approx. 105-115 HP (Turbo Diesel)

Torque Range:

Approx. 140-170 lb-ft (Gasoline), Approx. 160-180 lb-ft (Turbo Diesel)

Injection Type:

Multi-point Fuel Injection (MPI) for gasoline, Direct Injection (DI) or indirect injection for diesel

ECU Type:

ECU (Engine Control Unit) managed, with diagnostic trouble codes (DTCs) accessible via OBD-II (on later models)

🔧 Transmission

Transmission Type Standard:

5-Speed Manual Transmission

Transmission Type Optional:

4-Speed Automatic Transmission

Drivetrain Configurations:

Rear-Wheel Drive (RWD) and Optional Four-Wheel Drive (4WD)

📐 Dimensions

Wheelbase Range:

Approximately 109.4 - 117.7 inches, depending on configuration

Bed Lengths:

Offered in various bed lengths (e.g., short bed, long bed)

Curb Weight Range:

Approximately 3,000 - 4,000 lbs, depending on configuration

🛡️ Safety Features

NHTSA Ratings:

Varies by model year and configuration, generally average for its class during the period. Specific crash test data should be consulted for individual model years.

ABS:

Anti-lock Braking System (ABS) typically available as an option or standard on higher trims

Airbags:

Driver and passenger airbags standard on most models

💡 Technology Features

Audio System:

Basic AM/FM radio, cassette player, and CD player options. Speaker configurations vary by trim level.

Cruise Control:

Available on higher trim levels

Auxiliary Input:

Rare on models from this era; aftermarket upgrades are common.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 - 7,500 miles or 6-12 months, depending on oil type and driving conditions. Refer to manual for specific recommendations.

Timing Belt Interval:

For gasoline engines with timing belts, typically 60,000 - 90,000 miles. Diesel engines often use timing chains or belts with longer intervals. Consult manual for exact specification.

Engine Oil Viscosity:

Commonly 5W-30 or 10W-30, depending on climate and engine. Refer to manual for precise specification and API service category.

Coolant Type:

Ethylene glycol-based antifreeze/coolant, typically requiring a 50/50 mix with distilled water. Check manual for specific type (e.g., green or long-life silicate-free).

Transmission Fluid Type:

Manual: Gear oil (e.g., GL-4 or GL-5 75W-90). Automatic: ATF Dexron-III or equivalent. Consult manual for exact specification.

Common Problems:

Potential for rust on body panels and frame, exhaust system corrosion, some electrical component failures (e.g., blower motor resistor, window regulators), and occasional engine sensor issues. Regular maintenance is key.

📚 Vehicle History

Mazda Truck History:

Mazda has a history of producing reliable trucks, often in partnership with other manufacturers.

Second Gen Features:

This generation (UN series) was a significant update, offering improved styling, features, and shared mechanicals with the Ford Ranger, enhancing reliability and parts availability.

Manufacturing Locations:

Primarily assembled in North America (e.g., Thailand, USA) due to its platform sharing with Ford.

🏆 Awards & Recognition

Segment Performance:

Consistently recognized for its affordability, reliability, and utility as a compact work truck.