Engine Mechanical:
        
        
            Yes (includes complete repair, diagnostics, and specifications)
        
     
    
        
            Engine Control System:
        
        
            Yes (ECU, sensors, actuators)
        
     
    
        
            Fuel System:
        
        
            Yes (fuel delivery, injection, evaporative emission control)
        
     
    
        
            Emission Control:
        
        
            Yes (emission control systems, diagnosis, and repair)
        
     
    
        
            Cooling System:
        
        
            Yes (radiator, thermostat, water pump, coolant specifications)
        
     
    
        
            Lubrication System:
        
        
            Yes (oil change procedures, oil specifications, oil pump)
        
     
    
        
            Ignition System:
        
        
            Yes (spark plugs, coils, ignition timing)
        
     
    
        
            Charging System:
        
        
            Yes (alternator, battery, voltage regulation)
        
     
    
        
            Starting System:
        
        
            Yes (starter motor, solenoid)
        
     
    
        
            Automatic Transmission:
        
        
            Yes (diagnostics, repair, fluid specifications, torque converter)
        
     
    
        
            Manual Transmission:
        
        
            Yes (if applicable to specific models, although the Flex was primarily automatic)
        
     
    
        
            Clutch System:
        
        
            Yes (if applicable to specific models)
        
     
    
        
            Transfer Case:
        
        
            Yes (if applicable to AWD models)
        
     
    
        
            Drive Shaft And Axles:
        
        
            Yes (CV joints, U-joints, driveshafts)
        
     
    
        
            Differential:
        
        
            Yes (front, rear, AWD differentials)
        
     
    
        
            Suspension System:
        
        
            Yes (struts, shocks, control arms, bushings, alignment)
        
     
    
        
            Wheel And Tire:
        
        
            Yes (wheel specifications, tire sizes, rotation, balancing)
        
     
    
        
            Brake Control System:
        
        
            Yes (ABS, traction control, stability control)
        
     
    
        
            Brake System:
        
        
            Yes (pads, rotors, calipers, hydraulic system, bleeding)
        
     
    
        
            Parking Brake:
        
        
            Yes (mechanical and electronic parking brake systems)
        
     
    
        
            Steering Column:
        
        
            Yes (tilt, telescoping, ignition lock)
        
     
    
        
            Power Steering:
        
        
            Yes (hydraulic pump, steering rack, fluid)
        
     
    
        
            Air Conditioning System:
        
        
            Yes (refrigerant, compressor, condenser, evaporator, diagnosis)
        
     
    
        
            Supplemental Restraint System:
        
        
            Yes (airbags, SRS control module, seatbelt pretensioners)
        
     
    
        
            Seat Belt System:
        
        
            Yes (retractors, buckles, diagnosis)
        
     
    
        
            Engine Immobilizer:
        
        
            Yes (security system, key programming)
        
     
    
        
            Cruise Control:
        
        
            Yes (system components, operation, diagnosis)
        
     
    
        
            Wiper And Washer System:
        
        
            Yes (wiper motors, washer pump, fluid, blades)
        
     
    
        
            Door Lock System:
        
        
            Yes (power locks, keyless entry, actuators, diagnosis)
        
     
    
        
            Meter Audio Visual:
        
        
            Yes (instrument cluster, infotainment system, speakers)
        
     
    
        
            Horn System:
        
        
            Yes (horn operation, wiring)
        
     
    
        
            Windshield Glass Mirror:
        
        
            Yes (replacement, repair, calibration)
        
     
    
        
            Instrument Panel:
        
        
            Yes (removal, installation, components)
        
     
    
        
            Seats:
        
        
            Yes (adjustment mechanisms, heating, ventilation, removal)
        
     
    
        
            Engine Hood Door Latches:
        
        
            Yes (opening mechanisms, latches, hinges)
        
     
    
        
            Exterior And Interior Trim:
        
        
            Yes (body panels, trim pieces, interior components)
        
     
    
        
            Electrical System:
        
        
            Yes (complete vehicle electrical diagnostics and repair)
        
     
    
        
            Multiplex Communication:
        
        
            Yes (CAN bus, network communication, module diagnosis)
        
     
    
    
        
            Maintenance:
        
        
            Yes (routine maintenance, preventative maintenance)
        
     
    
        
            Diagnostics:
        
        
            Yes (troubleshooting, fault codes, diagnostic procedures)
        
     
    
        
            Repair:
        
        
            Yes (step-by-step instructions for all systems)
        
     
    
        
            Component Replacement:
        
        
            Yes (detailed procedures for all major and minor components)
        
     
    
        
            Wiring Schematics:
        
        
            Yes (comprehensive electrical wiring diagrams)
        
     
    
        
            Specifications:
        
        
            Yes (all necessary technical specifications for repairs and maintenance)
        
     
    
    
        
            Depth:
        
        
            Factory-level detail, suitable for professional technicians and advanced DIYers
        
     
    
        
            Diagrams Illustrations:
        
        
            Yes (numerous diagrams and illustrations to aid understanding)
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 7,500 miles or 6 months (or as indicated by the Intelligent Oil-Life Monitor system)
        
     
    
        
            Tire Rotation Interval:
        
        
            Every 7,500 miles
        
     
    
        
            Engine Air Filter Replacement:
        
        
            Every 30,000 miles (or as needed based on inspection)
        
     
    
        
            Cabin Air Filter Replacement:
        
        
            Every 15,000 miles or 12 months
        
     
    
        
            Transmission Fluid Change:
        
        
            Refer to manual; typically around 100,000 miles for severe use, or as indicated by monitor/inspection.
        
     
    
    
        
            Engine Oil Type 3.5L V6:
        
        
            SAE 5W-20, API SN or ILSAC GF-5 certified
        
     
    
        
            Engine Oil Capacity 3.5L V6:
        
        
            5.5 quarts (with filter change)
        
     
    
        
            Transmission Fluid Type:
        
        
            Mercon LV Automatic Transmission Fluid (ATF)
        
     
    
        
            Coolant Type:
        
        
            Ford specified Gold Coolant (or equivalent ethylene glycol-based coolant with corrosion inhibitors)
        
     
    
    
        
            Common Issues 2009 Flex:
        
        
            Potential for transmission control module (TCM) issues, HVAC blend door actuator failures, and early EcoBoost engine carbon buildup concerns (though less prevalent in initial years).