2003 Buick Regal Service and Repair Manual

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🏷️ Basic Information Identification Make: Buick Model: Regal Year: 2003 Codes Platform Code: W-body 👋 Introduction Market Position Target Audience: Buick Regal owners, DIY mechanics, professional repair shops Competitive Analysis...

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Taper: Car

Distributeur:

UGS: 82143

Mots clés: 2003 Buick Car Cars Regal

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Buick

Model:

Regal

Year:

Codes

Platform Code:

W-body

👋 Introduction

Market Position

Target Audience:

Buick Regal owners, DIY mechanics, professional repair shops

Competitive Analysis

Value Proposition:

Provides factory-level diagnostic and repair information, saving time and money compared to relying solely on mechanics.

Key Features

Ease Of Use:

Single, easy-to-use PDF manual, no flipping through multiple books.

Portability:

Printable pages allow for easy transport to the garage or workshop.

Durability:

Digital format prevents greasy pages or torn paper manuals.

📋 Manual Details

Coverage Areas

Covered Models:

All Buick Regal models

Repair Scope:

A-Z, vehicle-specific

Page Count

Estimated Page Count:

Extensive (typical for full factory service manuals, often 1500+ pages)

Manual Type

Type:

Factory Service Manual / Repair Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Engine Maintenance:

Included

Engine Diagnostics:

Included

Control Systems:

Included

Mechanical Repairs:

Included

Fuel System Service:

Included

Emission Control Systems:

Included

Intake Exhaust Cooling:

Included

Lubrication System:

Included

Ignition Starting Charging:

Included

Automatic Transmission Clutch:

Included

Manual Transmission:

Included

Transfer Propeller Shaft:

Included

Drive Shaft:

Included

Differential:

Included

Axle Suspension:

Included

Tire Wheel Assembly:

Included

Brake Control Systems:

Included

Brake Systems:

Included

Parking Brake System:

Included

Steering Column:

Included

Power Steering System:

Included

Air Conditioning System:

Included

Supplemental Restraint System Srs:

Included

Seat Belt Systems:

Included

Engine Immobilizer System:

Included

Cruise Control System:

Included

Wiper Washer System:

Included

Door Lock Systems:

Included

Meter Audio Visual Systems:

Included

Horn System:

Included

Windshield Glass Mirror Systems:

Included

Instrument Panel Systems:

Included

Seat Systems:

Included

Engine Hood Door Systems:

Included

Exterior Interior Trim:

Included

Electrical Systems General:

Included

Multiplex Can Communication:

Included

Procedures Included

Maintenance Procedures:

Complete step-by-step instructions

Diagnostic Procedures:

Included

Repair Procedures:

Complete step-by-step instructions for all repairs

Troubleshooting Guides:

Included

Technical Depth

Depth:

Factory-level detail, suitable for professional technicians and advanced DIYers

Wiring Information:

Wiring schematics included

Illustrations Diagrams:

Detailed diagrams and illustrations included

📊 Manual Specifications

File Format

Compatibility:

Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac

Reader Requirement:

Adobe PDF Reader

Unzip Requirement:

Winzip (or equivalent)

Print Quality

Printability:

All pages printable

Image Scaling:

Ability to blow up images for enlarged printing

Binding Type

Binding Type:

N/A (Digital PDF)

Paper Type

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Primary Engine

Engine Options 2003:

3.8L V6 (L36 naturally aspirated, L67 supercharged)

Performance

L36 Horsepower:

Approx. 205 hp @ 5200 rpm

L36 Torque:

Approx. 230 lb-ft @ 4000 rpm

L67 Horsepower:

Approx. 240 hp @ 5200 rpm

L67 Torque:

Approx. 280 lb-ft @ 3600 rpm

Fuel System

Fuel Delivery:

Sequential Fuel Injection (SFI)

🔧 Transmission

Standard

Standard Transmission:

4-speed automatic (4T65-E)

Optional

Optional Transmission:

4-speed automatic with manual shift mode (4T65-E HD for supercharged models)

Features

Transmission Fluid:

Dexron III (or Dexron VI as a replacement)

📐 Dimensions

Exterior

Wheelbase:

Approx. 110.5 inches

Length:

Approx. 197.3 inches

Width:

Approx. 71.4 inches

Height:

Approx. 55.7 inches

Weights

Curb Weight:

Varies by model and options, typically 3400-3700 lbs

🛡️ Safety Features

Ratings

NHTSA Frontal Driver Rating:

5-star (for most configurations)

NHTSA Frontal Passenger Rating:

5-star (for most configurations)

Active Features

Standard

Traction Control:

Optional or standard depending on trim/engine (often called Traction Control System - TCS)

Passive Features

Airbags:

Driver and front passenger airbags; optional side airbags

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM/CD player, optional premium sound systems, steering wheel audio controls.

Driver Assistance

Key Features:

Cruise control, optional anti-lock brakes (ABS).

Connectivity

Cellular Connectivity:

No built-in cellular connectivity typical for this era.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used.

Transmission Fluid Change Interval:

Refer to manual, typically 50,000-100,000 miles for severe service.

Fluid Specifications

Engine Oil Specification:

API Certified SAE 5W-30 (viscosity may vary slightly based on temperature and engine variant).

Coolant Specification:

GM Type II (Dex-Cool) Orange Coolant

Known Issues

Common Buick Regal Issues:

Intake manifold gasket leaks (especially on 3800 V6), torque converter shudder, power steering pump leaks, window regulator failures, ABS sensor issues.

📚 Vehicle History

Brand Heritage

Buick Legacy:

Buick has a long history of producing comfortable and well-equipped American sedans.

Model Evolution

Regal Positioning:

The Regal was positioned as a sporty and upscale mid-size sedan within Buick's lineup.

Production

Regal Generation 2003:

This is part of the fifth generation (1997-2004) of the Buick Regal, based on the GM W-body platform.