🏷️ Basic Information

Make:

Dodge

Model:

Ram

Model Year:

2004

Model Variant:

1500, 2500, 3500

Platform Code:

DR

👋 Introduction

Vehicle Segment:

Full-size pickup truck. Competed in a segment dominated by Ford F-Series and Chevrolet Silverado/GMC Sierra.

Key Competitors:

Ford F-150, F-250, F-350; Chevrolet Silverado 1500, 2500, 3500; GMC Sierra 1500, 2500, 3500.

Vehicle Strengths:

Known for robust powertrains, towing capability, and a commanding presence. Offered various configurations to suit different needs (work, family, towing).

Manual Value Proposition:

Provides owners and technicians with the official, in-depth information needed to maintain, diagnose, and repair these trucks accurately, ensuring longevity and optimal performance.

📋 Manual Details

Primary Coverage:

Complete service and repair for 2004 Dodge Ram 1500, 2500, and 3500 models.

Estimated Page Count:

Likely over 2000 pages (typical for comprehensive factory service manuals).

Type:

Factory Service Repair Manual

Language:

English

Format:

Digital (Zip/PDF)

📖 Manual Coverage

Engine Systems:

Engine mechanical, fuel, ignition, cooling, lubrication, emissions control, starting, charging.

Transmission Driveline:

Manual and automatic transmissions, transfer case, driveshafts, differentials (front and rear), axle shafts.

Suspension Steering:

Front and rear suspension components, steering gear, power steering system, alignment specifications.

Brakes:

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

Electrical Electronics:

Wiring diagrams, charging system, starting system, ignition system, lighting, instrument cluster, power windows/locks, audio/video, chime/buzzer, electronic control modules (ECMs), message systems, speed control, vehicle theft security, horn, wipers/washers, navigation/telecommunication.

Body Frame:

Body panels, doors, windows, interior trim, bumpers, frame, exhaust system, heating and air conditioning (HVAC).

Heated Systems:

Includes coverage for heated mirrors, heated seats (if equipped), and heated windshield washer nozzles.

Clutch:

Detailed procedures for clutch inspection, service, and replacement for manual transmission equipped vehicles.

Instrument Cluster:

Covers diagnostic procedures, bulb replacement, gauge cluster removal and installation, and recalibration.

Lamps:

Front and rear lighting systems, including headlamps, tail lamps, brake lights, turn signals, and interior lighting. Bulb types and replacement procedures.

Chime Buzzer:

Diagnostic and repair information for warning chimes and buzzers related to seat belts, door ajar, lights on, etc.

Restraints:

Covers airbag system diagnostics, component replacement (SRS module, impact sensors), and safety precautions when working with the restraint system.

Vehicle Theft Security:

Information on the factory anti-theft system, including key fobs, immobilizer, and alarm system troubleshooting.

Maintenance:

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

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics, electrical system diagnostics.

Repair:

Step-by-step repair procedures for all major components and systems, including engine rebuild, transmission overhaul, suspension and brake component replacement, electrical repairs.

Specifications:

Torque specifications, clearances, fluid capacities, electrical resistance values, diagnostic parameters.

Engine Rebuild:

Detailed procedures for engine disassembly, inspection, component replacement, and reassembly, including torque sequences and clearances.

Transmission Overhaul:

Complete guides for disassembling, repairing, and reassembling automatic and manual transmissions, including valve body diagnostics and torque converter replacement.

Wiring Diagrams:

Comprehensive, often color-coded, wiring diagrams for all electrical systems, crucial for diagnosing electrical faults.

Depth:

Comprehensive. Covers everything from routine maintenance to complete system overhauls and diagnostics.

📊 Manual Specifications

File Type:

PDF (within a Zip archive)

Searchability:

Typically searchable text-based PDF for efficient information retrieval.

Printability:

Printable, allowing for physical copies for workshop use.

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Options:

Likely included the 3.7L Magnum V6, 4.7L Magnum V8, and the 5.7L HEMI V8 for 1500 models, and the 5.7L HEMI V8 and 8.0L V10, or 5.9L Cummins Turbo Diesel for 2500/3500 models. Specific engine availability varied by sub-model and configuration.

Horsepower Torque:

Varies by engine. For example, the 5.7L HEMI offered approximately 345 hp and 375 lb-ft of torque.

Injection Type:

Sequential Multi-Port Fuel Injection (MPI).

Spark Plugs:

Refer to manual for specific plug type (e.g., Champion, NGK) and gap. HEMI engines often used Platinum or Iridium plugs.

Oil Type Capacity:

Varies by engine. For the 5.7L HEMI, typically SAE 5W-20 or 5W-30 synthetic oil, with a capacity around 7 quarts (6.6 liters).

🔧 Transmission

Transmission Options:

Likely included a 5-speed manual transmission and a 4-speed automatic transmission (e.g., 45RFE/48RE) for gasoline engines. Diesel models often featured a 4-speed heavy-duty automatic (48RE).

Optional Transmission:

Heavy-duty manual and automatic transmissions for 2500/3500 models.

Transfer Case:

Part-time 4WD system (NV241DHD for heavier duty) with electronic or manual shift options, or Full-time 4WD (Quadra-Trac) depending on trim and configuration.

Transmission Fluid Type:

ATF+4 (for automatic transmissions) or specified gear oil for manual transmissions and differentials. Refer to manual for exact specifications and capacities.

📐 Dimensions

Body Styles:

Regular Cab, Club Cab (Extended Cab), and Quad Cab (Crew Cab). Various bed lengths (e.g., 6.25 ft, 8 ft).

Gvw Gcwr:

Gross Vehicle Weight Rating (GVWR) and Gross Combined Weight Rating (GCWR) varied significantly by model (1500, 2500, 3500) and configuration. Consult manual for specific ratings.

Curb Weight:

Varied based on cab configuration, drivetrain, and engine. 2500/3500 models were significantly heavier than 1500 models.

🛡️ Safety Features

Crash Test Results:

Refer to NHTSA or IIHS reports for specific model year ratings. Generally, trucks of this era were rated well for frontal impacts but less so for side impacts compared to modern vehicles.

Airbags:

Standard driver and passenger front airbags. Side airbags were optional on some trims.

Seatbelts:

Three-point seat belts with pretensioners for front occupants.

ABS:

Anti-lock Braking System (ABS) was standard on most models.

Traction Control:

Traction control (often called Electronic Ignition Lock) was available on some models, particularly those with higher trims or specific drivetrains.

💡 Technology Features

Audio System:

Base models typically had AM/FM radio with CD player. Optional upgrades included premium sound systems, cassette players, and in-dash 6-disc CD changers. Satellite radio availability.

Navigation:

Factory navigation systems were available as an option on higher trim levels.

Cruise Control:

Standard speed control (cruise control) on most models.

Trailer Tow Features:

Integrated trailer brake controller prep, trailer wiring harnesses, and towing mirrors were common options, detailed in the manual.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-7,500 miles, depending on driving conditions and oil type used. Refer to the manual for precise intervals based on synthetic vs. conventional oil.

Tire Rotation:

Recommended every 5,000-7,500 miles.

Transmission Fluid Change:

Typically around 30,000-60,000 miles for automatic transmissions, depending on towing and severe usage. Manual transmissions and transfer cases have longer intervals.

Coolant:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, 5/100 Formula (meets Chrysler MS-9769). Typically a 50/50 mix with distilled water.

Brake Fluid:

DOT 3 or DOT 4 brake fluid, depending on specific system requirements. Check the master cylinder cap or manual.

Power Steering Fluid:

ATF+4 or a specified power steering fluid. Consult the manual.

Common Problems:

Potential issues can include manifold crack on HEMI engines, rust issues (especially on frames and rocker panels), front suspension wear (ball joints, tie rods), rear main seal leaks, and transmission issues (particularly with hard use).

Heater Core Failure:

Some models experienced heater core issues, requiring replacement. This is covered in the HVAC section.

📚 Vehicle History

Dodge Truck Legacy:

Dodge has a long history of producing durable and capable trucks, dating back to the early 20th century. The Ram line, established in 1981, became a distinct brand from Dodge in 2010.

Third Generation Ram:

The 2004 model falls within the third generation of the Dodge Ram (2002-2008), which was a significant redesign featuring a more aggressive styling, improved interior, and introduction of the HEMI V8 engine.

Manufacturing Locations:

Primarily manufactured at the Warren Truck Assembly Plant in Warren, Michigan, and the St. Louis Assembly Plant in Fenton, Missouri.

🏆 Awards & Recognition

Truck Of The Year:

While not necessarily specific to the 2004 model, the Ram line has received various 'Truck of the Year' awards from automotive publications over its history.