Segment:
Full-size pickup truck, positioned as a robust and capable workhorse with a strong emphasis on utility and towing.
Key Competitors:
Ford F-150, Chevrolet Silverado 1500, GMC Sierra 1500, Toyota Tundra.
Distinctive Attributes:
Renowned for its powerful engine options, comfortable ride for a truck of its class, and durable construction. The 2002 model is part of the third generation (2002-2008) of the Ram pickup.
Benefit To Owner:
Empowers owners and independent repair shops with factory-level knowledge for accurate diagnosis, efficient repair, and proper maintenance, potentially saving significant costs over dealership services.
Engine Mechanical:
Engine assembly, disassembly, inspection, repair of all major engine components (cylinder head, block, crankshaft, pistons, connecting rods, valvetrain).
Engine Performance:
Fuel system (injection, fuel pump, injectors), ignition system (spark plugs, coils, timing), emission control systems (catalytic converter, EGR, PCV).
Transmission Manual:
Service and repair procedures for manual transmissions (if applicable to specific models covered by the manual).
Transmission Automatic:
Service and repair procedures for automatic transmissions, including hydraulic control, torque converter, and electronic controls.
Drivetrain:
Four-wheel drive (4WD) system, transfer case, drive shafts, axles, differentials, CV joints.
Brakes:
Brake system diagnosis, repair of hydraulic components (master cylinder, calipers, wheel cylinders, lines), brake rotor and pad replacement, ABS system components and diagnosis.
Suspension:
Front and rear suspension components, ball joints, control arms, steering knuckles, springs, shock absorbers/struts, alignment specifications.
Steering:
Power steering system components, steering gear/rack and pinion, tie rods, steering column, alignment.
Electrical System:
Charging system (alternator, battery, regulator), starting system (starter motor), lighting system, accessory circuits.
Body And Chassis:
Body panel repair, doors, hinges, latches, glass replacement, interior trim, chassis lubrication, frame repair.
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system diagnosis, refrigerant handling, component replacement (compressor, condenser, evaporator, blower motor).
Diagnostic Troubleshooting:
Systematic troubleshooting guides for various components and symptoms, including diagnostic trouble codes (DTCs) and their interpretations.
Scheduled Maintenance:
Detailed maintenance schedules and procedures for oil changes, filter replacements, fluid checks, tire rotations, etc.
Component Removal Installation:
Step-by-step instructions with torque specifications for the removal and installation of all major vehicle components.
Major Overhaul:
Procedures for complete engine and transmission overhauls, including disassembly, cleaning, inspection, measuring, and reassembly.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all vehicle systems, crucial for electrical troubleshooting.
Specifications Data:
Essential technical specifications, torque values, clearances, fluid capacities, and diagnostic parameters.
Depth:
Covers everything from basic fluid level checks and filter changes to complete engine and transmission rebuilds, including complex electrical diagnostics.
Engine 4.7L V8:
4.7L Magnum V8 (235 hp @ 4800 rpm, 295 lb-ft @ 3200 rpm) - a popular and reliable option known for its balance of power and efficiency.
Engine 5.9L V8:
5.9L Magnum V8 (245 hp @ 4000 rpm, 335 lb-ft @ 3200 rpm) - the larger, more powerful, and torque-focused option, often preferred for towing.
Bore Stroke 4.7L:
4.7L V8: Bore: 3.92 in (99.5 mm), Stroke: 3.30 in (83.8 mm).
Bore Stroke 5.9L:
5.9L V8: Bore: 3.92 in (99.5 mm), Stroke: 3.98 in (101.1 mm).
Injection Type:
Sequential Multi-Port Fuel Injection (MPI).
Fuel Type:
Unleaded gasoline.
ECU Type:
Chrysler's NGC (Next Generation Controller) or equivalent for the era.
Availability:
Manual transmission (e.g., NV3500 5-speed) was available on some configurations, particularly with smaller engines or specific trims.
Automatic 42Re:
42RE 4-speed automatic (typically with 4.7L V8).
Automatic 44Re:
44RE 4-speed automatic (typically with 5.9L V8).
Automatic 47Re:
47RE 4-speed automatic (heavy-duty, often with 5.9L V8).
Transfer Case 4Wd:
Electronic shift transfer case (e.g., NP241 DHD or similar) for 4WD models, offering 2WD High, 4WD High, and 4WD Low ranges.
Atf Spec:
ATF+4 (MS-9602) is the recommended automatic transmission fluid. Manual transmission fluid specifications vary by transmission model.
Wheelbase Options:
Varied based on cab and bed configuration (e.g., 134.0 inches for Regular Cab short bed, 154.8 inches for Quad Cab short bed, 164.7 inches for Regular Cab long bed).
Overall Length Range:
Approximately 220-240 inches depending on configuration.
Curb Weight Range:
Approximately 4,500 - 5,500 lbs depending on configuration (engine, drivetrain, cab type).
Payload Capacity Range:
Typically rated for 1,500 - 2,500 lbs.
Towing Capacity Range:
Up to 8,000+ lbs, depending on configuration and optional towing packages.
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions (severe vs. normal). Check owner's manual for specific recommendations.
Air Filter Replacement:
Every 15,000-30,000 miles, or more frequently in dusty conditions.
Spark Plug Replacement:
Varies by plug type, but typically around 30,000-100,000 miles for platinum or iridium plugs. The 4.7L and 5.9L Magnum V8s often used standard copper plugs requiring more frequent replacement (e.g., 30k miles) unless upgraded.
Engine Oil Spec:
SAE 5W-30 or 10W-30 API certified engine oil, depending on ambient temperature. Consult manual for precise recommendations.
Coolant Spec:
Mopar OAT (Organic Acid Technology) or HOAT (Hybrid Organic Acid Technology) engine coolant, typically a 50/50 mix with distilled water. Color is often orange or pink.
Brake Fluid Spec:
DOT 3 brake fluid.
Transmission Hard Shifting:
Some owners report hard shifting in the automatic transmissions; often related to solenoid issues or fluid condition.
Ignition Coil Failure:
Individual ignition coil failures can cause misfires and rough running.
Exhaust Manifold Cracks:
Exhaust manifold cracks are a known issue on some Magnum V8 engines, leading to exhaust leaks and ticking noises.
Heater Core Leaks:
Heater core leaks can occur, leading to coolant loss and a sweet smell inside the cabin.
Dodge Truck Legacy:
Dodge has a long history of producing durable and capable trucks, with the Ram nameplate being a cornerstone of their truck division since the 1980s.
Third Generation Introduction:
The 2002 model year marks the introduction of the third generation of the Dodge Ram (2002-2008), featuring a significantly redesigned exterior and interior, improved chassis, and updated powertrains.
Manufacturing Location:
Primarily assembled at the Warren Truck Assembly Plant in Warren, Michigan, and the Saltillo Truck Assembly Plant in Saltillo, Mexico.