Vehicle Segment:
Heavy-duty pickup truck
Competitors:
Ford F-Series Heavy Duty, Chevrolet Silverado Heavy Duty
Vehicle Strengths:
Robust construction, high towing and payload capacity, versatile platform for work and customization
Manual Value Proposition:
Comprehensive, detailed, and easy-to-understand instructions for servicing and repairing the vehicle.
Primary Coverage:
Repair, maintenance, diagnostics, troubleshooting, adjustments, removal, installation, disassembly, assembly
Type:
Workshop Service Repair Manual
Purpose:
Designed for professional mechanics and DIY enthusiasts to perform repairs and maintenance.
Delivery:
Instant Download via secure payment processor.
Engine Service:
Engine mechanical, lubrication system, cooling system, fuel system, emission control system, ignition system, starting system, charging system
Drivetrain Service:
Transmission (manual/automatic), transfer case, drive shafts, differentials, axles, hub units
Chassis Service:
Suspension (front/rear), steering system, brake system (front/rear, ABS if applicable), wheels and tires
Body And Trim:
Body construction, interior trim, exterior trim, doors, windows, locks, mirrors, glass
Electrical System:
Wiring diagrams, lighting system, instruments and gauges, audio system, power accessories, diagnostic connector (OBD-I)
Fuel System Diesel:
Fuel injection pump, injectors, fuel lines, filters for Cummins diesel engines.
Maintenance Procedures:
Scheduled maintenance, fluid changes, filter replacements, lubrication, inspections
Repair Procedures:
Component removal, disassembly, inspection, repair, assembly, and installation
Troubleshooting Diagnostics:
Symptom-based diagnosis, diagnostic charts, testing procedures, circuit testing
Adjustment Procedures:
Engine timing, idle speed, clutch adjustment, brake adjustments, suspension alignment, headlight aiming
Special Tool References:
References to specific OEM service tool numbers and their usage.
Rebuilding Procedures:
Detailed instructions for rebuilding major components like engines, transmissions, and differentials.
Depth:
Comprehensive, bumper-to-bumper coverage with step-by-step instructions, detailed illustrations, exploded diagrams, and photos
Torque Specifications:
Detailed torque specifications for all critical fasteners and components.
Wear Limits:
Specifications for component wear limits to ensure proper repair and longevity.
Schematics Diagrams:
Wiring diagrams, vacuum diagrams, exploded view illustrations, and pictorial diagrams.
Engine Options:
Likely candidates include 3.9L V6 (230 cu in) Slant-Six (less common in W350), 5.2L V8 (318 cu in), 5.9L V8 (360 cu in), and the renowned 5.9L Cummins Turbo Diesel (B-series) - specific engines would be detailed in the manual.
Horsepower Torque:
Specific horsepower and torque figures vary significantly based on engine option and year. Diesel variants, particularly the Cummins, are known for strong low-end torque suitable for towing.
Induction:
Fuel injection (MPI or throttle body injection) for gasoline engines; mechanical injection pump for Cummins diesel.
Gasoline Engines:
Likely 5.2L (318 ci) and 5.9L (360 ci) V8 engines.
Diesel Engine:
5.9L (359 ci) Cummins Turbo Diesel (B-series) is a significant and highly sought-after option for this model.
Transmission Options:
Typically offered with heavy-duty manual transmissions (e.g., NP435, NV4500) and robust automatic transmissions (e.g., A727, A518/46RH).
Transfer Case:
Part-time 4WD transfer case (e.g., NP205).
Gear Ratios:
Detailed gear ratios for all available transmissions and transfer cases will be present in the manual.
Manual Transmission:
Heavy-duty manual transmissions like the NP435 (4-speed) or NV4500 (5-speed overdrive).
Automatic Transmission:
Robust automatic transmissions such as the A727 (3-speed) or the electronically controlled A518/46RH (4-speed overdrive).
Body Styles:
Standard Cab, Club Cab (Extended Cab)
Wheelbase Options:
Various wheelbase lengths available, common for long bed configurations typical of a W350.
Gvwr:
Gross Vehicle Weight Rating (GVWR) will be significantly high, indicating its heavy-duty classification, likely in the 8,500 lbs to 10,000+ lbs range depending on configuration.
Curb Weight:
Curb weight will vary based on engine, drivetrain, and cab configuration, generally heavier for diesel models.
Bed Sizes:
Typically offered with 8-foot long beds.
Crash Testing:
As this is a 1989-1991 model, comprehensive crash test data comparable to modern vehicles may be limited. The manual will likely focus on structural integrity and safety system operation.
Braking Systems:
Front disc brakes, rear drum brakes. Potential for rear-wheel anti-lock brakes (RWAL) on later models or as an option.
Steering System:
Power steering is standard. Detailed component checks and adjustments will be in the manual.
Restraint Systems:
Seat belts. Airbags were not standard or commonly available on this generation of heavy-duty trucks.
Oil Change Interval:
Typically every 3,000-5,000 miles for gasoline engines, and potentially longer intervals (e.g., 7,500-10,000 miles) for the Cummins diesel, with specific recommendations in the manual.
Engine Oil:
Viscosity and API service classification will be specified, e.g., API SG or SH, SAE 30W or 10W-30 for gasoline, and specific diesel engine oil grades (e.g., 15W-40 API CH-4 or CI-4) for the Cummins.
Coolant:
Ethylene glycol based coolant, typically a 50/50 mix with distilled water. Specific type and capacity will be detailed.
Transmission Fluid:
ATF+3 or ATF+4 for automatics (or equivalent), gear oil for manual transmissions. Capacities will be listed.
Brake Fluid:
DOT 3 brake fluid.
Power Steering Fluid:
Specific power steering fluid or ATF, as specified by Dodge.
Common Wear Items:
Ball joints, tie rod ends, u-joints, exhaust systems, brake components, and potential for rust/corrosion depending on climate.
Diesel Specific:
For Cummins models, potential for injector pump issues, turbocharger wear, and intercooler leaks depending on mileage and maintenance.
Engine Cooling System:
Radiator leaks, thermostat issues, water pump wear.
Dodge Truck Legacy:
Dodge has a long history of producing durable and capable trucks, with the Ram line establishing itself as a formidable competitor in the pickup market.
Second Generation Ram:
The 1989-1991 models fall within the second generation of Dodge Ram trucks, which saw significant updates in styling and engineering from the previous generation, including improved aerodynamics and suspension.
Chassis Design:
The W350 designation signifies a 1-ton heavy-duty pickup, indicating a robust chassis built for hauling and towing.
Manufacturing Era:
Produced during a period when Dodge was solidifying its presence in the heavy-duty truck segment.
