Engine Mechanical:
Complete overhaul, diagnostics, repair of all engine variants.
Engine Control System:
ECM, sensors, actuators, fuel injection, ignition timing.
Transmission Manual:
Service and repair procedures for all manual transmissions.
Transmission Automatic:
Service and repair procedures for all automatic transmissions, including torque converter.
Drivetrain 4X4:
Transfer case, front axle, rear axle, drive shafts, U-joints.
Suspension Front:
Independent front suspension (IFS) components, alignment.
Suspension Rear:
Leaf spring system, shock absorbers.
Steering:
Power steering system, steering column, linkage.
Brakes Front:
Disc brakes, calipers, rotors, pads, ABS components.
Brakes Rear:
Disc or drum brakes, parking brake system.
Electrical System:
Battery, charging system, starting system, lighting, fuses, relays.
Body Electrical:
Wiper system, power windows, power locks, mirrors, horn.
HVAC:
Heating, ventilation, and air conditioning system components and service.
Body Exterior:
Panels, doors, tailgate, bumpers, trim.
Body Interior:
Seats, dashboard, trim panels, headliner.
Chassis:
Frame, body mounts, subframes.
Exhaust System:
Exhaust manifolds, catalytic converter, muffler, pipes.
Fuel System:
Fuel tank, fuel pump, fuel lines, injectors.
Cooling System:
Radiator, water pump, thermostat, hoses, fan.
Basic Maintenance:
Oil changes, fluid checks, filter replacements, tire rotation.
Troubleshooting:
Diagnostic procedures, common problems, fault code interpretation.
Engine Repair:
Engine overhaul, component replacement, timing belt/chain service.
Transmission Repair:
Transmission rebuilds, clutch replacement, fluid service.
Brake Service:
Brake pad/shoe replacement, rotor turning/replacement, brake fluid bleeding.
Electrical Diagnostics:
Wiring diagrams, component testing, circuit diagnosis.
HVAC Repair:
Refrigerant service, component replacement, leak detection.
Suspension Alignment:
Front and rear suspension alignment procedures and specifications.
Chassis Repair:
Frame straightening, body mount replacement.
Bodywork Repair:
Panel replacement, dent repair, welding procedures.
Depth:
Comprehensive (from basic maintenance to complete engine and transmission rebuilds).
Diagnostics:
Advanced diagnostic procedures and troubleshooting guides.
Wiring Diagrams:
Detailed electrical wiring diagrams for all systems.
Torque Specifications:
All critical torque specifications for fasteners and components.
Schematics:
System schematics and flow charts.
Oil Change Interval Gas:
Every 3,000-7,500 miles or 6 months (depending on oil type and driving conditions).
Oil Change Interval Diesel:
Every 7,500 miles or 6 months (using API CJ-4 rated oil).
Transmission Fluid Change:
Every 30,000-60,000 miles for automatic transmissions, check manual for specific recommendations.
Coolant Flush:
Every 30,000 miles or 3 years.
Engine Oil Gas 5.7L:
SAE 5W-20 or 5W-30 (check owner's manual for exact specification); API SN or equivalent.
Engine Oil Diesel 5.9L:
SAE 15W-40; API CJ-4 or CK-4 rated diesel engine oil.
Transmission Fluid 48Re:
ATF+4 (MS-9602)
Transmission Fluid 545Rfe:
ATF+4 (MS-9602)
Transfer Case Fluid:
MS-907, NV273 (e.g., Mopar NP273 Transfer Case Fluid)
Rear Axle Fluid:
API GL-5, SAE 75W-90 (with friction modifier if limited-slip differential).
Cummins Injectors:
Potential failure of the common rail fuel injectors, especially on high-mileage units. Diagnosis and replacement are critical.
Transmission Hard Shifts:
Some 48RE automatic transmissions may develop hard shifting due to worn solenoids or valve body issues.
Heater Core Leaks:
Heater core can be prone to leaks, often requiring dashboard removal for replacement.
Front Suspension Wear:
Ball joints, tie rod ends, and track bar bushings can wear prematurely due to the truck's weight and usage.