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            Manual Coverage
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            Systems Covered
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            Engine:
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            4.6L V8 (Modular SOHC, Romeo and Essex variants), including fuel, ignition, cooling, lubrication, and exhaust systems.
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            Transmission:
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            4R75E / 4R75W (4-speed Automatic Overdrive)
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            Drivetrain:
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            Rear-wheel drive (RWD), including driveshaft, universal joints, rear axle, and differential.
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            Suspension:
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            Front independent suspension (short-long arm), rear solid axle with locating links, springs, shocks, and stabilizer bars.
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            Steering:
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            Power-assisted recirculating ball steering system, steering column, linkages.
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            Brakes:
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            Front vented disc brakes, rear solid disc brakes, Anti-lock Brake System (ABS), parking brake system.
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            Electrical System:
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            12V negative ground, battery, alternator, starter, charging system, ignition system, lighting (headlights, taillights, interior), power distribution, fuses, relays.
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            HVAC:
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            Air conditioning system, heater core, blower motor, climate controls.
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            Body Interior:
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            Body panels, doors, windows, glass, mirrors, seats, interior trim, instrument panel, dashboard.
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            Safety Systems:
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            Supplemental Restraint System (SRS) - airbags, seat belts, pre-tensioners.
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            Driver Controls:
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            Cruise control, wipers, washers, horn, door locks, power windows.
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            Multiplex Can Communication:
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            CAN (Controller Area Network) communication system, multiplexed circuits.
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            Procedures Included
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            Maintenance:
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            Routine maintenance, fluid checks and changes, filter replacements, lubrication.
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            Diagnostics:
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            Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics.
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            Repair:
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            Step-by-step repair procedures for all major systems and components.
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            Component Replacement:
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            Detailed instructions for replacing virtually any part on the vehicle.
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            Adjustments:
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            Procedures for adjusting brakes, steering linkages, and other components.
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            Electrical Troubleshooting:
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            Wiring diagrams, circuit tests, component testing.
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            Engine Rebuilding:
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            Information on engine disassembly, inspection, and reassembly.
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            Transmission Overhaul:
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            Detailed steps for transmission diagnosis and overhaul.
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            Technical Depth
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            Depth:
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            Comprehensive factory-level detail, including torque specifications, clearances, and diagnostic parameters.
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            Detail Level:
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            Factory-specific procedures, diagrams, and specifications used by authorized technicians.
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            Maintenance
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            Service Intervals
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            Oil Change Interval:
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            Every 5,000-7,500 miles or 6 months, whichever comes first, using synthetic blend or full synthetic oil.
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            Engine Air Filter:
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            Inspect every 15,000 miles, replace as needed (typically every 30,000 miles).
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            Cabin Air Filter:
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            Replace every 15,000-30,000 miles (location dependent).
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            Transmission Fluid Change:
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            Every 30,000-50,000 miles, depending on driving conditions.
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            Spark Plugs:
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            Typically 100,000 miles for the 4.6L Romeo/Essex engines (check manual for specifics).
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            Fluid Specifications
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            Coolant Type:
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            Ford Premium Engine Coolant (Orange)
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            Brake Fluid Type:
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            DOT 3
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            Power Steering Fluid Type:
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            Mercon V or equivalent
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            Known Issues
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            Common Issue 1:
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            Rear air suspension (if equipped on Police Interceptor/Grand Marquis) can fail or sag; many owners convert to coil springs.
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            Common Issue 2:
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            Spark plug blow-out on early Romeo-built 4.6L engines; 2007 models typically use improved spark plugs but it's a point to be aware of.
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            Common Issue 3:
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            Idler arm wear in the steering linkage can cause looseness and play.
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            Common Issue 4:
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            Coolant leaks from the plastic thermostat housing or intake manifold coolant passages.
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