Segment Positioning:
The 2004 Dodge Ram (third generation) was a highly competitive full-size pickup truck, known for its bold styling, robust powertrains, and towing/hauling capabilities. It competed directly with models like the Ford F-150, Chevrolet Silverado, and Toyota Tundra.
Key Competitive Advantages:
Distinctive 'big rig' styling, powerful HEMI V8 option, strong payload and towing capacities, comfortable ride for a truck.
Major Selling Points 2004:
Optional 5.7L HEMI V8, redesigned interior and exterior for the third generation, improved aerodynamics, available Quad Cab and Mega Cab configurations.
Manual Coverage Summary:
Comprehensive service and repair for the 2004 Dodge Ram. Covers lubrication, maintenance, suspension, driveline, brakes, clutch, cooling, electrical, engine, exhaust, fuel, steering, transmission, and body.
Manual Type:
Service and Repair Manual
Format:
Print (assumed, based on typical product description)
Engine Mechanical:
Detailed procedures for 3.7L Magnum V6, 4.7L Magnum V8, and 5.7L HEMI V8 engines, including disassembly, inspection, assembly, torque specifications, and cylinder head reconditioning.
Engine Electrical:
Wiring diagrams, diagnostic trouble codes (DTCs), starter system, charging system (alternator), ignition system, and emissions control systems (OBD-II).
Transmission:
Coverage for NV3500 (5-speed manual), 45RFE/545RFE (4-speed automatic), and optional NV244 (2-speed transfer case for 4WD) including overhaul, diagnostics, and fluid specifications.
Brakes:
Front disc brake systems (including ABS), rear drum and disc brake systems, parking brake operation, hydraulic system, and bleeding procedures.
Suspension Steering:
Front and rear suspension components (independent front suspension on 2WD, solid axle on 4WD), steering gear, power steering system, and wheel alignment specifications.
Differential Driveline:
Front and rear axle assemblies (Dana 44, Chrysler 9.25), differential gears, driveshafts, U-joints, and CV joints (if applicable for 4WD).
Cooling Heating Ac:
Radiator, fan systems, water pump, thermostat, heater core, A/C system diagnostics and repair, refrigerant handling.
Fuel System:
Fuel tank, fuel pump, fuel injectors, fuel pressure diagnostics, evaporative emission control (EVAP) system.
Exhaust System:
Exhaust manifolds, catalytic converter, mufflers, and emissions control components.
Body Chassis:
Body panels, doors, hinges, latches, interior trim, exterior trim, glass, bumpers, and structural components.
Electrical System:
Detailed circuit diagrams for lighting, accessories, power windows, power locks, instrument cluster, wipers, horn, and trailer lighting. Includes fuse box locations and component testing.
Maintenance Procedures:
Oil and filter changes, fluid level checks and top-offs, tire rotation, brake pad replacement, spark plug replacement, air filter replacement, coolant flush and fill.
Repair Procedures:
Complete engine overhaul, transmission rebuild, suspension component replacement, brake caliper and rotor replacement, steering rack replacement, fuel pump replacement, water pump replacement.
Diagnostic Procedures:
Troubleshooting common drivability issues, electrical system diagnostics using multimeter and scan tools, brake system bleeding, HVAC system troubleshooting.
Technical Specifications Data:
Torque specifications for all major fasteners, engine rebuild specifications, alignment data, fluid capacities, and diagnostic trouble code definitions.
Wheel Tire Service:
Tire pressure monitoring system (TPMS) operation (if equipped), wheel bearing replacement, tire changing procedures, and torque specifications for lug nuts.
Diagnostic Trouble Codes:
Comprehensive listing of OBD-II DTCs relevant to the 2004 Ram, with diagnostic flowcharts and pinpoint tests for common faults.
Depth Of Coverage:
Comprehensive, covering everything from routine maintenance and minor repairs to major overhauls and advanced diagnostics. Suitable for professional technicians and advanced DIY enthusiasts.
Engine Options 2004:
3.7L Magnum V6, 4.7L Magnum V8, 5.7L HEMI V8
3.7L Magnum V6 Specs:
Displacement: 3.7L (226 ci), Horsepower: ~215 hp @ 5200 rpm, Torque: ~235 lb-ft @ 4000 rpm
4.7L Magnum V8 Specs:
Displacement: 4.7L (287 ci), Horsepower: ~235-260 hp @ 4500-5000 rpm, Torque: ~300-330 lb-ft @ 3200-3600 rpm (depending on tuning)
5.7L Hemi V8 Specs:
Displacement: 5.7L (345 ci), Horsepower: ~345 hp @ 5000 rpm, Torque: ~375 lb-ft @ 4000 rpm
Fuel Delivery System:
Multi-point fuel injection (MPI)
Recommended Fuel:
87 octane unleaded for 3.7L and 4.7L, 89 octane recommended for 5.7L HEMI for optimal performance.
Manual Transmission Option:
New Venture Gear NV3500 5-speed manual transmission (primarily on V6 and base V8 models).
Automatic Transmission Options:
45RFE/545RFE 4-speed automatic transmission (standard on most V8 models).
Transfer Case Options:
2WD (RWD), 4WD with electronic shifting (NV244 with Vari-Lok differential on some models), 4WD with manual transfer case lever.
Automatic Transmission Fluid Type:
ATF+4 (Chrysler Material Standard MS-9602).
Manual Transmission Fluid Type:
API GL-5, SAE 75W-90 synthetic gear lubricant.
Wheelbase Options:
Various, depending on cab and bed configuration (e.g., 120.5" for Regular Cab, 140.5" for Quad Cab).
Bed Length Options:
Short Bed (6.3 ft), Long Bed (8.0 ft).
Gross Vehicle Weight Rating Gvwr:
Varies significantly by configuration, typically ranging from 6,000 lbs to 8,800 lbs.
Curb Weight:
Varies by configuration, typically starting around 4,500 lbs and going up.
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used. Consult manual for specific recommendations.
Engine Air Filter Replacement:
Recommended every 15,000-30,000 miles or as needed based on inspection and driving environment.
Spark Plug Replacement:
For 3.7L/4.7L Magnum: ~100,000 miles. For 5.7L HEMI: ~100,000 miles (use of appropriate spark plugs is critical).
Transmission Fluid Change:
Every 30,000-60,000 miles for automatic transmissions, depending on towing and severe usage. Manual transmissions may have longer intervals or sealed-for-life recommendations, though periodic checks are advised.
Engine Oil Type:
SAE 5W-30 is common for most gasoline engines, with specific API certification (e.g., API SN or earlier). Check manual for exact specification.
Coolant Type:
Mopar HOAT (Hybrid Organic Additive Technology) coolant (orange) or equivalent meeting Chrysler MS-9769.
Brake Fluid Type:
DOT 3 (or DOT 4 if specified for ABS systems).
Common Third Gen Ram Problems:
Heater core failures, power steering pump leaks, front suspension component wear (ball joints, tie rod ends), cracked exhaust manifolds on 4.7L, potential death wobble on some 4WD models due to steering/suspension wear, occasional transmission solenoid issues.
Hemi Lifter Tick:
Some 5.7L HEMI engines may exhibit a 'hemi tick' due to lifter issues or exhaust manifold leaks, which this manual would cover diagnosing.
Dodge Truck Legacy:
Dodge has a long and storied history in the pickup truck market, dating back to the Dodge Power Wagon. The Ram nameplate was introduced in 1981, evolving significantly over generations to become a major player in the full-size truck segment.
Third Generation Design Changes:
The third generation (2002-2008) represented a significant redesign from the second generation. It featured a bolder, more aggressive exterior design, a more refined interior, and a wider range of powertrain options, including the introduction of the potent 5.7L HEMI V8.
Manufacturing Locations:
Primary assembly plants included Warren, Michigan; Saltillo, Mexico; and St. Louis, Missouri (until closure).