2003 Dodge RAM Truck 1500, 2500, 3500 Service Manual

Documents Dodge RAM 1500, 2500, 3500 service procedures, covering engine, transmission, brakes, and suspension. PN C4256-90954

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Dodge Models Covered & Key Technical Specifications

Models: 2003 Dodge RAM Truck 1500, 2003 Dodge RAM Truck 2500, 2003 Dodge RAM Truck 3500
Sub-models / Variants: 4X2, 4X4, 1500, 2500, 3500, Conventional Cab, Quad Cab, Short Box, Long Box, Light Duty (LD), Heavy Duty (HD)
Build Years: 2003
Serial Numbers: VIN character 10 = 3
Technical Data:

  • Engine displacement: 3.7L, 4.7L, 5.7L, 5.9L Turbo Diesel, 5.9L Turbo Diesel High Output, 8.0L
  • Transmission types: 4-speed Automatic (46RE, 45RFE, 47RE, 48RE), 5-speed Manual (NV3500, NV4500), 6-speed Manual (NV5600)
  • Fuel types: Gasoline, Diesel
  • Drive systems: 4X2, 4X4
  • Coolant capacity (5.9L Diesel): 28 liters (29.5 quarts)
  • Fuel tank capacity (Short Box): 98 liters (26 gallons)
  • Torque (Hub/Bearing Bolts LD): 163 Nm (120 ft-lbs)
  • Torque (Hub/Bearing Bolts HD 4X2): 176 Nm (130 ft-lbs)
  • Axle thrust angle (1500): 0° ± 0.4°
Technical Specifications
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Document Number / Seller:
26828 / Jerry Robinson
File Size:
74.31 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Truck
Last updated / verified
Jan 21, 2025

Dodge Manual Features & Content Preview

2003 Dodge RAM Truck 1500, 2500, 3500 Technical Service Documentation

  • Covers 2003 Dodge RAM Truck 1500, 2500, and 3500 models, including 4X2 and 4X4 drivetrain configurations, standard and quad cab body styles, and various engine options from 3.7L V6 to 8.0L V10
  • Official DaimlerChrysler Corporation publication P/N C4256-90954, first edition 2003
  • Contains 47 technical diagrams, 4 detailed component index lists, 5 fastener strength charts, and 4 maintenance schedule tables
  • Accessible from your device as soon as the order is placed
  • Suitable for printing individual sections for shop-floor use
  • This 2003 edition documents all factory-specified torque values and fluid capacity requirements essential for the 1500, 2500, and 3500 vehicle line-up

Component and System Documentation

The 2003 Dodge RAM Truck 1500, 2500, 3500 service manual details the diagnostics and servicing requirements for core vehicle systems. The document structures information into logical groups, ranging from engine and lubrication systems to transmission, transfer case, and chassis-specific drivetrain components. Chapters encompass differential and driveline maintenance, independent front suspension configurations, and rear suspension assembly, providing technical parameters for professional review.

Technical Data Preview

Specifications are provided for standard hardware grades ranging from SAE Grade 2 through Grade 8 and metric strength classes 9.8 and 10.9. Coolant system capacities for the 3.7L engine are documented at 15.4 liters, while the 5.9L Diesel engine requires 28 liters. Hub/bearing bolt torque for light-duty models is specified at 163 Nm (120 ft-lbs) in the independent front suspension section. The what an OEM service publication covers includes torque references for fasteners used across engine, suspension, and axle assemblies. Cylinder head bolt torque values are documented in a multi-stage sequence, with final-stage angles of 130°–140° specified in the engine assembly data. Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions.

Reference only — always consult a certified technician before performing service on this equipment.

An official DaimlerChrysler OEM service manual covering the 2003 Dodge RAM Truck 1500, 2500, and 3500, documenting detailed engine, chassis, electrical, and powertrain specifications for this specific model year vehicle architecture.

Manual FAQ, Purchase & Download Details

Does this service document include standard torque specification tables for various fastener types? keyboard_arrow_down

Specification tables provided in the introduction and throughout the group sections include reference values for metric and SAE grade bolts, covering both cast iron and aluminum applications.

What edition details or publication identifiers are present in this 2003 Ram Truck service manual? keyboard_arrow_down

Document is identified as the service manual for the 2003 Ram Truck 1500, 2500, and 3500 series, designated by publication number C4256-90954. It contains a foreword from DaimlerChrysler Corporation outlining the general organization of groups and assembly procedures.

Which chapters contain the fluid capacity charts for the various axle and transmission configurations? keyboard_arrow_down

Fluid capacity tables for engines, transmissions, transfer cases, and axles are listed in the Lubrication and Maintenance chapter.

Can the manual be used to locate reference tables for fastener identification and metric conversion formulas? keyboard_arrow_down

Introduction section includes dedicated charts for SAE and metric bolt strength identification, as well as comprehensive conversion tables for torque, pressure, and distance units. These tables serve as standardized references for navigating the technical data presented in the manual.

Is there comprehensive coverage of major vehicle systems within the documented service groups? keyboard_arrow_down

Manual is divided into distinct groups covering systems such as the engine, cooling, fuel, transmission, and electrical components. Each group provides content relevant to those specific vehicle assemblies, with tab locators available to assist in finding section-specific information. The structure allows for organized access to system-related technical data throughout the document.

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