Target Audience:
Professional technicians and DIY enthusiasts aiming for quality service and maintenance
Value Proposition:
Provides dealership-level information for DIY repairs, saving time and money compared to professional shops
Comprehensiveness:
Covers all aspects of repair and maintenance, including special instructions for proprietary components
Accuracy Assurance:
Endeavored accuracy in information, providing reliable guidance for repairs
Powertrain:
Engine (all aspects), Fuel System, Ignition System, Lubrication System, Exhaust System, Transmission (mechanical and potentially automatic control components)
Chassis:
Brakes, Steering, Suspension (Front and Rear), Drive Axles, Wheels and Tires
Electrical:
Complete Electrical System including wiring diagrams, lighting, instrumentation, charging system, starting system, accessory circuits
Body:
Body panels, interior trim, glass, doors, seats, HVAC (Heating, Ventilation, and Air Conditioning)
Maintenance:
Routine maintenance, tune-ups, fluid changes, filter replacements, inspections
Repair:
Removal and installation of components, assemblies, sub-assemblies, overhaul procedures, diagnostic and troubleshooting guides
Technical:
Specifications, torque values, diagnostic procedures, special tool usage, overhaul instructions
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission disassembly and rebuilding
Engines Available 1989 1991:
3.9L V6 (5.2L V8) Slant-Six (less common in D150), 5.9L V8 (later models)
Typical Hp 3 9L V6:
Approx. 125-150 hp (depending on year and specific configuration)
Typical Hp 5 2L V8:
Approx. 140-170 hp (depending on year and specific configuration)
Fuel Delivery Systems:
Fuel Injection (Electronic Multi-Point - MPI) for later models, Carbureted systems for earlier configurations (manual covers both)
Engine Block Material:
Cast Iron
Cylinder Head Material:
Cast Iron
Manual Transmission:
Getrag 5-speed manual (various models depending on engine and drivetrain)
Automatic Transmission:
Chrysler A727 (3-speed), A518 (4-speed overdrive)
Drivetrain Options:
2WD (Rear-Wheel Drive), 4WD (Four-Wheel Drive)
Automatic Transmission Fluid:
Chrysler ATF+3 (or equivalent recommended for the era, consult specific service bulletin)
Audio System:
AM/FM Radio, Cassette Player. Optional premium sound systems may have been available.
Anti Lock Brakes:
Available as an option on some models, particularly later in the production run.
Not Applicable:
Vehicle era predates widespread electronic connectivity features.
Oil Change Interval:
Typically every 3,000-5,000 miles or 6 months, depending on driving conditions (consult manual for precise intervals)
Tune Up Schedule:
Spark plugs, ignition timing, and filter checks recommended at intervals specified in the manual, often tied to mileage or time.
Engine Oil Type:
SAE 10W-30 API Service SG or SH for gasoline engines (verify with manual for specific engine and temperature range)
Coolant Type:
Ethylene Glycol based antifreeze, typically a 50/50 mix with distilled water. Verify specific type (e.g., green conventional).
Common Wear Items:
Ball joints, tie rod ends, exhaust system components, fuel pumps, radiator, u-joints.
Electrical Quirks:
Wiring harness degradation, interior electrical component failures (e.g., power windows, door locks if equipped) can occur with age.
Torque Wrench Importance:
Crucial for ensuring fasteners are tightened to manufacturer specifications, preventing component damage and ensuring safety.
Dodge Trucks:
Dodge has a long history of producing rugged and capable trucks, with the Ram line being a significant part of their identity.
Fourth Generation Ram:
The 1972-1993 D/W series trucks represented a substantial redesign from previous generations, emphasizing comfort and modern features for their time. The D150 designation signifies a half-ton pickup.
Manufacturing Era:
1989-1991 falls within the final years of the 'Ram' badge being part of the Dodge brand before the independent Ram Trucks division was established.
