Segment:
Full-size pickup truck
Target Audience:
DIY mechanics, professional technicians, fleet owners, enthusiasts
Competitors:
Ford F-Series, Chevrolet Silverado/GMC Sierra, Toyota Tundra
Durability:
Renowned for robust construction and hauling/towing capabilities
Versatility:
Available in various configurations (cab styles, bed lengths, powertrains) to suit diverse needs
Primary Coverage:
2002-2004 Dodge Ram Trucks
Body Styles:
Pickups (including Ram 1500, 2500, 3500), potentially Chassis Cab models
Estimated Page Count:
Over 3000 pages (typical for full WSM)
Type:
Workshop Service Manual (WSM) / Service Repair Manual
Format:
Digital Download (likely PDF)
Powertrain:
Engine diagnostics, repair, overhaul; Transmission service (automatic and manual); Drivetrain components (transfer case, axles, driveshafts, differentials)
Chassis:
Suspension systems (front and rear), steering system, braking system (ABS, parking brake), wheels, tires
Electrical:
Wiring diagrams, lighting, charging system, starting system, ignition system, body control modules, instrument cluster, diagnostics of electrical components
Body And Interior:
Body repair procedures, exterior trim, interior trim, seats, HVAC system, fuel system, exhaust system, cooling system
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication points
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), diagnostic procedures for all major systems
Repair And Overhaul:
Step-by-step repair instructions for engine components, transmissions, brakes, suspension, electrical systems, body panels, etc.
Special Tools:
Identification and usage of special tools required for specific repair procedures
Depth:
Comprehensive; Covers routine maintenance to major component overhauls and in-depth diagnostics.
Detail Level:
Includes detailed specifications, torque values, clearance measurements, wiring diagrams, and diagnostic flowcharts.
Base Engine 2002 2004:
4.7L V8 Magnum (P-engine)
4.7L V8 Magnum Specs:
SOHC, 16 valves, approximately 235-245 horsepower, 295-305 lb-ft torque (depending on year/tune)
Optional Engine 2002 2004:
5.9L V8 Magnum (LA-based)
5.9L V8 Magnum Specs:
OHV, 16 valves, approximately 245-250 horsepower, 335-345 lb-ft torque
Optional Engine 2003 2004 Diesel:
5.9L Cummins I6 Turbo Diesel
5.9L Cummins Specs:
OHV, 24 valves, Turbocharged, approximately 250-305 horsepower, 475-555 lb-ft torque (depending on year/tune)
Compression Ratio 4.7L:
9.1:1
Compression Ratio 5.9L Gas:
8.4:1
Compression Ratio 5.9L Diesel:
17.2:1
Fuel Delivery:
Multi-point Fuel Injection (MPI) for gasoline engines; High-pressure Common Rail (HPCR) for Cummins diesel
Fuel Type Gasoline:
Unleaded Regular (87 Octane recommended)
Fuel Type Diesel:
Diesel Fuel (refer to manual for specific grades and additives)
Std Transmission Gasoline:
4-speed automatic (45RFE/48RE)
Opt Transmission Gasoline:
5-speed manual (NV3500, available on some 4.7L models)
Std Transmission Diesel:
6-speed manual (NV5600, typically with high-output Cummins) or 5-speed manual (G56)
Opt Transmission Diesel:
4-speed automatic (47RE, later 48RE with Cummins)
Transfer Case Options:
Part-time 4WD (NV235/NV244), Full-time 4WD (NV244, some models), 2WD
Transmission Fluid Type Auto:
ATF+4 (Mopar)
Transmission Fluid Type Manual:
GL-3 or GL-4 (specific viscosity depends on transmission model, check manual)
Wheelbase Options:
Standard Cab (133.0" / 140.5"), Quad Cab (160.5") - varies by bed length
Bed Length Options:
6.3 ft (Short Bed), 8.0 ft (Long Bed)
Gvwr Range:
Approx. 6,200 lbs to over 10,000 lbs (depending on configuration and payload)
Curb Weight Range:
Approx. 4,500 lbs to 6,500+ lbs
NHTSA Front Impact Driver:
4/5 Stars (2002-2004 models, specific ratings may vary slightly by year)
NHTSA Front Impact Passenger:
4/5 Stars
IIHS Moderate Overlap Frontal Offset:
Good (for most configurations)
ABS:
Standard on most models, Antilock Braking System
Traction Control:
Optional or standard on some higher trims/4WD models
Airbags:
Driver and front passenger airbags standard
Seat Belts:
Three-point seat belts for all occupants
Audio Options:
AM/FM radio with CD player, cassette player, premium audio systems available on higher trims.
Display Type:
Basic analog gauges, central driver information display.
Cruise Control:
Standard on most models
Parking Sensors:
Optional on some models
Auxiliary Inputs:
Limited to aftermarket solutions; no standard USB or Bluetooth for audio playback on factory units.
Oil Change Interval Gasoline:
Every 5,000-7,500 miles or 6 months (refer to manual for specific conditions, synthetic oil may extend interval)
Oil Change Interval Diesel:
Every 7,500-15,000 miles or 6-12 months ( Cummins diesel; check manual for exact recommendation based on usage)
Tire Rotation Interval:
Every 7,500-10,000 miles
Coolant Flush Interval:
Every 30,000-60,000 miles or 3-5 years (depending on coolant type)
Engine Oil 4.7L V8:
SAE 5W-30 (preferred) or 10W-30; API SP or SN (or equivalent) certified
Engine Oil 5.9L V8:
SAE 10W-30 or 10W-40; API SN or older (check manual for specific requirements)
Engine Oil 5.9L Cummins:
API CJ-4 or CK-4 rated Diesel Engine Oil, SAE 15W-40 (preferred for most conditions), or 5W-40 synthetic for cold weather. Check manual for specific Cummins specs.
Coolant Type:
Mopar OAT (Orange) or HOAT (Gold/Yellow) Long Life Coolant (specific to engine and year, consult manual)
Common Issues 4.7L V8:
Cylinder head gasket leaks, intake manifold gasket leaks, plenum gasket leaks, crankshaft position sensor failures, oil filter bypass issues.
Common Issues 5.9L Cummins:
VP44 injection pump failures (earlier models), injector issues, turbocharger wear, crankcase ventilation system issues, potential for oil starvation if not maintained.
Common Issues Transmission:
Overdrive planetary gear failure in 45RFE/48RE automatic transmissions, clutch wear in manual transmissions.
Common Issues Front End:
Ball joint wear, tie rod end wear, steering gear play, especially on 4WD models.
Dodge Trucks:
Dodge has a long history of producing rugged and capable trucks, dating back to the 1930s.
Third Generation Ram:
This generation (2002-2008) marked a significant redesign with a bolder, more aggressive styling and improved chassis dynamics.
Key Updates 2002 2004:
Introduction of the 4.7L Magnum V8, updated interior designs, introduction of the Quad Cab, and the highly sought-after 5.9L Cummins Turbo Diesel for heavy-duty models.
Manufacturing Locations:
Primary assembly plant: Warren Truck Assembly Plant, Warren, Michigan.
