2003 Dodge RAM Truck Service and Repair Manual

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🏷️ Basic Information Identification Make: Dodge Model: RAM Truck Year: 2003 Codes Chassis Codes: DR (for 2WD), BE (for 4WD) Generation Generation Designation: Third Generation (DR/DH/D1/DC/DM/DP/DS) 👋 Introduction Market Position...

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Taper: Truck

Distributeur:

UGS: 542125

Mots clés: 2003 Cars Dodge Misc RAM Truck

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Dodge

Model:

RAM Truck

Year:

Codes

Chassis Codes:

DR (for 2WD), BE (for 4WD)

Generation

Generation Designation:

Third Generation (DR/DH/D1/DC/DM/DP/DS)

👋 Introduction

Market Position

Market Niche:

Full-size pickup truck market, known for towing, hauling, and off-road capability.

Competitive Analysis

Key Competitors:

Ford F-150, Chevrolet Silverado 1500, GMC Sierra 1500, Toyota Tundra.

Key Features

Vehicle Strengths:

Robust chassis, powerful engine options, comfortable ride for a truck, extensive trim and configuration choices.

Manual Value Proposition

Target Audience:

Dodge RAM truck owners performing their own maintenance and repairs, professional mechanics, and automotive restoration enthusiasts.

Unique Selling Point:

Official factory service information provides unparalleled accuracy and depth for diagnosing and repairing complex issues.

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive service and repair for 2003 Dodge RAM Trucks

Page Count

Total Pages:

Nearly 3000

Manual Type

Type:

Official Service and Repair Manual

Language

Language:

English

Format

Format:

Printed Book (implied by page count and traditional manual format)

📖 Manual Coverage

Systems Covered

Engine:

Detailed diagnostics, repair, and overhaul procedures for all gasoline and diesel engines offered in 2003.

Transmission:

Coverage for manual and automatic transmissions, including NV3500, NV4500, 48RE, and 45RFE/545RFE, with service, repair, and rebuild procedures.

Brakes:

Front and rear brake systems (disc/drum, disc/disc), ABS, and hydraulic components, including diagnostics and component replacement.

Suspension:

Front and rear suspension systems, including independent front suspension (IFS) for 2WD and solid front axle for 4WD, shock absorbers, springs, and steering components.

Driveline:

Front and rear differentials, transfer cases (NV241, NV271, NV273), driveshafts, U-joints, and axle assemblies.

Electrical:

Complete wiring diagrams, fuse box layouts, starter, alternator, battery, lighting systems, power accessories, and diagnostic procedures for electrical faults.

Body:

Exterior and interior body panel removal/installation, trim, doors, windows, seats, and HVAC system servicing.

Fuel System:

Fuel tanks, pumps, lines, injectors, and evaporative emissions control (EVAP) system.

Cooling System:

Radiator, fan, water pump, thermostat, heater core, and coolant specifications.

Exhaust System:

Exhaust manifolds, catalytic converters, mufflers, and emissions components.

Procedures Included

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, lubrication points, and inspections.

Diagnostics:

Troubleshooting charts, symptom-based diagnostics, OBD-II diagnostic trouble codes (DTCs), and diagnostic connector locations.

Repair:

Step-by-step repair instructions for all major mechanical and electrical components, including torque specifications and special tool requirements.

Rebuilds:

Detailed procedures for engine, transmission, and differential rebuilds, including component specifications and clearances.

Technical Data Lookup:

Comprehensive tables for specifications, clearances, fluid capacities, and part numbers.

Technical Depth

Depth:

Advanced diagnostic and repair procedures, suitable for professional technicians and serious DIY enthusiasts.

📊 Manual Specifications

File Format

Format:

Printed Book

Print Quality

Print Quality:

High-quality paper stock with clear text and diagrams, designed for workshop durability.

Binding Type

Binding:

Durable binding (likely saddle-stitched or perfect bound) to withstand frequent use.

Paper Type

Paper Type:

Durable, possibly coated paper to resist grease and moisture in a workshop environment.

⚙️ Engine Specifications

Primary Engine

Base Engine:

4.7L Magnum V8 (P-Code: 4.7L)

Optional Engine 1:

5.9L Magnum V8 (P-Code: 5.9L)

Optional Engine 2:

5.7L HEMI V8 (P-Code: 5.7L HEMI) - Introduced mid-year for 2003 models

Diesel Engine:

5.9L Cummins Turbo Diesel (P-Code: 5.9L Turbo Diesel) - Highly sought-after

Performance

4.7L V8 Horsepower:

Approx. 235 hp @ 4500 rpm

4.7L V8 Torque:

Approx. 295 lb-ft @ 3200 rpm

5.9L V8 Horsepower:

Approx. 245 hp @ 4000 rpm

5.9L V8 Torque:

Approx. 335 lb-ft @ 3200 rpm

5.7L Hemi V8 Horsepower:

Approx. 345 hp @ 5000 rpm

5.7L Hemi V8 Torque:

Approx. 375 lb-ft @ 4000 rpm

5.9L Cummins Turbo Diesel Horsepower:

Approx. 250 hp @ 2800 rpm (Standard Output)

5.9L Cummins Turbo Diesel Torque:

Approx. 460 lb-ft @ 1400 rpm (Standard Output)

Fuel System

Gasoline Injection:

Multi-point fuel injection (MPI)

Diesel Injection:

Direct injection with Bosch VP44 injection pump (pre-common rail)

🔧 Transmission

Standard

Standard Transmission Gas:

NV3500 5-speed manual (common on lighter duty models)

Optional

Optional Transmission Gas:

48RE 4-speed automatic (for Magnum V8s), 45RFE/545RFE 4-speed automatic (for HEMI V8)

Optional Transmission Diesel:

NV4500 5-speed manual, 47RE 4-speed automatic (heavy-duty)

Features

Overdrive Gears:

Most transmissions feature overdrive (4th or 5th gear).

Transfer Case Options:

NV241 (part-time 2WD/4WD), NV271 (part-time manual shift 4WD), NV273 (part-time electric shift 4WD) for 4x4 models.

📐 Dimensions

Exterior

Wheelbase Options:

Various, including 120.0" (regular cab 6.3' bed), 135.0" (regular cab 8.0' bed, quad cab 6.3' bed), 148.0" (quad cab 8.0' bed), and 160.5" (mega cab).

Weights

Gvw Range:

Varies significantly by configuration, from 6,350 lbs to 13,500 lbs (for Heavy Duty 3500/4500 models).

Cargo

Bed Length Options:

6.3 feet (short bed) and 8.0 feet (long bed). Mega Cab offered with 6.3' bed.

🛡️ Safety Features

Ratings

NHTSA Frontal Impact Driver:

4/5 Stars (2003 Ram 1500)

NHTSA Frontal Impact Passenger:

4/5 Stars (2003 Ram 1500)

IIHS Frontal Offset:

Good (for models equipped with optional side airbags)

Active Features

Standard Anti-lock Braking System (ABS) on all models.

Passive Features

Airbags:

Driver and passenger front airbags standard. Optional side airbags available on some trims.

💡 Technology Features

Infotainment

Audio Options:

Factory AM/FM/CD player, optional cassette, CD changer, and Sirius Satellite Radio compatibility on higher trims.

Driver Assistance

Cruise Control:

Standard on most trims. Electronic throttle control on later models.

Connectivity

Towing Features:

Factory trailer brake controller provisions, trailer tow mirrors, and wiring harnesses were common options.

🔧 Maintenance

Service Intervals

Oil Change Interval Gas:

Typically 7,500 miles or 6 months, whichever comes first (synthetic blend oil recommended).

Oil Change Interval Diesel:

Typically 3,000-7,500 miles depending on driving conditions and oil type (Cummins engines are robust and can often go longer with high-quality oil).

Transmission Fluid Interval:

Refer to manual; generally 30,000-60,000 miles for automatic transmissions, depending on towing and load usage.

Fluid Specifications

Engine Oil 4.7L:

API SN or SP, SAE 5W-30 (check owner's manual for exact specification and capacity).

Engine Oil 5.7L Hemi:

API SN or SP, SAE 5W-20 (check owner's manual for exact specification and capacity).

Engine Oil 5.9L Cummins:

API CI-4 or CJ-4 rated, SAE 15W-40 (for most conditions), or SAE 5W-40 synthetic for cold weather. Capacity: 11 quarts (10.4 liters).

Transmission Fluid 48Re/47Re:

ATF+4 (Mopar Part No. 05013457AA or equivalent)

Transfer Case Fluid:

Mopar NV241/271/273 Transfer Case Fluid (Mopar Part No. 05010307AA or equivalent).

Known Issues

4.7L Magnum:

Cylinder head cracking (particularly early versions), oil consumption, potential for intake manifold leaks.

5.9L Magnum:

Less prone to major issues than the 4.7L, but can have typical wear-and-tear items like valve seals, spark plug misfires.

5.7L Hemi:

Multi-Displacement System (MDS) lifter issues/noise, occasional oil consumption.

5.9L Cummins:

VP44 injection pump failure (often due to low fuel pressure or fuel quality issues), injector issues, potential for fuel heater issues, exhaust manifold cracking (less common than later generations).

General:

Steering/suspension wear (ball joints, tie rods), exhaust system rust, brake component wear.

📚 Vehicle History

Brand Heritage

Dodge Truck Legacy:

Dodge has a long history of producing rugged and capable trucks, with the Ram nameplate being synonymous with heavy-duty performance and utility.

Model Evolution

Third Generation Launch:

The third generation (2002-2008) introduced a completely redesigned chassis and body, offering increased size, comfort, and capability. The 2003 model year solidified this new platform.

Production

Manufacturing Locations:

Saltillo, Mexico; Warren, Michigan; and St. Louis, Missouri.

🏆 Awards & Recognition

Recognitions

Truck Of The Year:

The third-generation Dodge Ram was frequently recognized for its design and capability in automotive media publications upon its release.

Ratings

Cummin Diesel Reputation:

The 5.9L Cummins Turbo Diesel variant is widely regarded as one of the most reliable and durable diesel engines ever put in a light-duty truck.