Engine Mechanical:
Engine assembly, cylinder head, crankshaft, pistons, connecting rods, timing system, lubrication system, cooling system, intake/exhaust manifolds, engine diagnostics.
Engine Electrical:
Ignition system, fuel injection system (MPI), starting system, charging system, powertrain control module (PCM) operation and diagnosis, sensor data.
Transmission Manual:
NV3500, NV4500 manual transmissions: disassembly, assembly, overhaul, clutch system, shift mechanisms, fluid specifications.
Transmission Automatic:
42RE, 46RE automatic transmissions: disassembly, assembly, overhaul, torque converter, valve body operation, transmission control module (TCM), fluid specifications.
Drivetrain:
Rear-wheel drive (RWD), four-wheel drive (4WD) systems, transfer case (NP231, NP241), driveshafts, U-joints, rear axle assembly (Dana 44, Dana 60, Chrysler 9.25), front axle assembly (for 4WD).
Suspension:
Front suspension (independent torsion bar, coil spring options), rear suspension (leaf springs), shock absorbers, sway bars, alignment specifications.
Steering:
Power steering system, steering gear, steering column, tie rods, steering linkage, steering wheel removal/installation.
Brakes:
Front disc brakes, rear drum brakes (or disc on heavier duty models), ABS system (if equipped), hydraulic lines, brake fluid specifications, bleeding procedures, parking brake system.
Electrical System:
Wiring diagrams, fuse box locations, relay functions, lighting systems (headlights, taillights, interior), power windows, power locks, horn, wipers, horn, accessories.
Body And Frame:
Body panel removal/installation, door mechanisms, glass replacement, interior trim, upholstery, frame straightening and repair, chassis components.
HVAC:
Heating, ventilation, and air conditioning (HVAC) system components, refrigerant types, charging procedures, diagnosis of blower motor, evaporator, condenser, compressor.
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors, fuel pressure regulator, evaporative emissions control (EVAP) system.
Maintenance:
Oil change intervals, filter replacements (oil, air, fuel), spark plug replacement, fluid checks and changes (coolant, transmission fluid, brake fluid, power steering fluid), tire rotation.
Troubleshooting:
Diagnostic charts for various symptoms (engine not starting, poor performance, brake issues, electrical faults), OBD-I diagnostic codes and procedures.
Repair Overhaul:
Step-by-step instructions for major component repairs and overhauls, including engine rebuilds, transmission rebuilding, suspension component replacement, brake caliper overhaul.
Diagnostics:
Procedures for using diagnostic tools, interpreting sensor data, testing electrical circuits, checking fuel system pressures, performing cylinder leak-down tests.
Wheel Alignment Specs:
Detailed front and rear wheel alignment specifications, caster, camber, toe settings, and adjustment procedures.
Depth Level:
Comprehensive: from routine maintenance to complete engine and transmission rebuilds.
Diagnostic Tools Required:
Basic hand tools, multimeter, pressure gauges (fuel, oil), OBD-I scanner (if applicable).
Engine Options:
5.2L Magnum V8 (318 cu. in.), 5.9L Magnum V8 (360 cu. in.), 3.9L Magnum V6 (239 cu. in.), 8.0L V10 Magnum (optional on 2500/3500), 5.9L Cummins Turbo Diesel (optional on 2500/3500).
5.2L V8:
Approx. 230 hp @ 4,800 rpm, 300 lb-ft @ 3,200 rpm (figures may vary slightly).
5.9L V8:
Approx. 245 hp @ 4,000 rpm, 345 lb-ft @ 3,200 rpm (figures may vary slightly).
3.9L V6:
Approx. 175 hp @ 4,800 rpm, 225 lb-ft @ 3,200 rpm (figures may vary slightly).
8.0L V10:
Approx. 300 hp @ 4,000 rpm, 450 lb-ft @ 2,400 rpm (figures may vary slightly).
5.9L Cummins Diesel:
Approx. 180-230 hp, 420-470 lb-ft torque (figures vary by application and tuning).
Fuel Delivery:
Multi-Point Fuel Injection (MPI) for gasoline engines. Direct injection for Cummins diesel.
Fuel Type:
Unleaded gasoline (87 octane minimum recommended for V6/V8), Diesel fuel for Cummins.
Engine Block Material:
Cast Iron for all Magnum V6/V8 and Cummins Diesel engines. V10 likely cast iron.
Cylinder Head Material:
Cast Iron for all Magnum V6/V8 and Cummins Diesel engines. V10 likely cast iron.
Oil Change Interval:
Every 3,000 miles or 3 months, whichever comes first (or 7,500 miles with synthetic oil and filter change).
Air Filter Replacement:
Every 12,000 miles or as needed based on driving conditions.
Spark Plug Replacement:
Every 30,000-60,000 miles depending on spark plug type (e.g., copper vs. platinum).
Coolant Flush:
Every 30,000 miles or 2 years.
Engine Oil Type V8:
API SG or SH, SAE 5W-30 or 10W-30 (depending on climate).
Engine Oil Capacity 5.2L:
5 Quarts (4.7 Liters) with filter.
Engine Oil Capacity 5.9L:
5 Quarts (4.7 Liters) with filter.
Coolant Type:
Ethylene Glycol based antifreeze, Mopar specific or equivalent (e.g., orange or green).
Common Wear Items:
Ball joints, tie rod ends, u-joints, exhaust system components, power steering pumps, intake manifold gaskets (prone to vacuum leaks).
Common Powertrain Issues:
Transmission valve body issues (42RE/46RE), radiator leaks, potential for injector issues on early Cummins.
Common Electrical Issues:
Alternator failures, power window motor failures, dashboard gauge cluster intermittent operation.