2015-2017 Ford Expedition Repair Manual

Technical Specs & Performance

Powertrain

• Engine: 3.5L EcoBoost V6 (Twin-Turbo)
• Output: 365 hp • 420 lb-ft (typical factory rating)
• Transmission: 6-speed automatic (SelectShift on many trims)
• Drivetrain: RWD or 4WD (low-range on 4WD models)
• Fuel tank (typical): ~34 gal (varies by configuration)

Performance (Typical)

• 0–60 mph: ~7 seconds (trim/weight/drivetrain dependent)
• Towing (properly equipped): up to ~9,200 lbs (varies by wheelbase/4WD/tow package)
• Seating: Up to 8 (depending on 2nd-row setup)

Size & Practicality (Typical)

• Body style: Full-size SUV (standard wheelbase + EL/Max long wheelbase in some markets)
• Strengths: high towing capability, large cabin, strong highway power

Top 10 Common Mechanical Issues (Reported) — Root Cause + Fix

1. Turbocharger rattle / reduced boost (underboost feel)
   – Root cause: wastegate wear, actuator issues, boost leaks, or carbon buildup affecting airflow control.
   – Fix: smoke-test intake/charge pipes, repair leaks, inspect wastegate play/actuator operation, clean/inspect MAP/charge-air sensors; replace turbo/actuator if out of spec.
2. Misfires under load (shudder, flashing MIL)
   – Root cause: worn spark plugs, weak coils, moisture intrusion, or heavy carbon on valves/injectors (DI engines).
   – Fix: replace plugs at proper gap/interval, swap coils as needed, inspect boots, consider injector service; intake valve cleaning if carbon-related.
3. Timing chain stretch / cam phaser noise (rattle on start)
   – Root cause: oil maintenance delays, chain wear, tensioner/guide wear over mileage.
   – Fix: verify oil pressure/condition, check cam correlation, replace timing set (chains/guides/tensioners) if confirmed; keep strict oil-change intervals.
4. Coolant leaks (sweet smell, low coolant)
   – Root cause: aging hoses, fittings, water pump seepage, or plastic connector fatigue.
   – Fix: pressure test, replace leaking hose/fitting, inspect water pump and thermostat housing; refill with correct coolant and bleed properly.
5. 6R80 harsh shifts / delayed engagement
   – Root cause: old fluid, adaptive shift strategy out of range, solenoid wear, or valve body issues.
   – Fix: service transmission fluid (correct spec), perform adaptive relearn, scan for TCM codes, update calibration if applicable; valve body/solenoids if persistent.
6. Rear suspension sag or “floaty” ride
   – Root cause: worn shocks/struts, tired rear springs, or air-leveling components (if equipped).
   – Fix: inspect for leaks/wear, replace shocks and/or springs; repair air lines/compressor if equipped.
7. Steering feel changes / clunks over bumps
   – Root cause: worn tie rods, ball joints, sway bar links/bushings (common on heavy SUVs).
   – Fix: inspect front end, replace worn joints/links/bushings, align vehicle.
8. Brake vibration / pulsation
   – Root cause: rotor hot spots/warping from towing, heavy braking, or caliper slide issues.
   – Fix: measure rotor runout, replace/turn rotors as appropriate, service caliper slides, upgrade pads for towing use.
9. Exhaust leaks / ticking sound
   – Root cause: manifold gasket leakage, fastener fatigue, or cracks over heat cycles.
   – Fix: locate leak (smoke/soapy test), replace gasket/hardware, repair cracked sections.
10. Engine overheating in severe use (towing/hot weather)
    – Root cause: cooling system inefficiency (radiator, fan, thermostat), low coolant, or restricted airflow.
    – Fix: verify fan operation, clean radiator stack, replace thermostat if sticking, restore coolant level, inspect for leaks and blockage.

Top 10 Common Electrical Issues (Reported) — Root Cause + Fix

1. HVAC blower motor stops / intermittent (burning smell possible)
   – Root cause: blower motor failure or overheating resistor/module wiring behind glove box area.
   – Fix: inspect connector for heat damage, replace blower motor/resistor as needed; ensure recall remedy performed if applicable.
2. Rearview camera image blank/distorted/inverted
   – Root cause: camera module/PCB faults or connector issues.
   – Fix: verify power/ground, inspect harness, replace camera; check for recall coverage.
3. Battery drain (overnight dead battery)
   – Root cause: modules not going to sleep (SYNC/infotainment, door modules), aftermarket accessories, weak battery.
   – Fix: parasitic draw test, update modules if needed, repair faulty module, replace aging battery with correct spec.
4. SYNC/infotainment freezing, reboot loops, Bluetooth issues
   – Root cause: software bugs, APIM faults, corrupted settings.
   – Fix: master reset, update software, inspect APIM connections; replace APIM if repeated failures.
5. Parking sensors intermittent / false beeps
   – Root cause: harness damage, moisture in sensors, connector corrosion in bumper area.
   – Fix: scan for parking aid faults, inspect/repair harness, replace sensor(s), clean and reseal connectors.
6. Power running boards intermittent (if equipped)
   – Root cause: water intrusion, worn motor/gear, hinge binding, control module faults.
   – Fix: clean/lube pivots, inspect wiring, replace motor/module as needed; recalibrate if supported.
7. Door lock/Keypad issues (no response)
   – Root cause: keypad/door module fault, wiring in door jamb, low voltage events.
   – Fix: check for broken wires in hinge boot, test door module, reprogram/replace as required.
8. Instrument cluster warnings that don’t match conditions
   – Root cause: cluster software glitches or communication errors.
   – Fix: scan for network/IPC codes, update cluster calibration, repair CAN issues if found.
9. Trailer wiring faults (no lights / intermittent)
   – Root cause: corrosion in connector, damaged harness near hitch, blown fuses from shorts.
   – Fix: test trailer plug pins, repair harness, use dielectric grease, confirm fuse/relay integrity.
10. Airbag light on / seat belt pretensioner warnings
    – Root cause: pretensioner circuit resistance/corrosion, seat wiring movement, connector issues.
    – Fix: scan SRS codes, inspect under-seat connectors, repair/replace pretensioner components; verify recall repairs where applicable.

✅ Pros & ❌ Cons

🗓️ Maintenance Schedule (Practical Guide)

🏁 Top Competitors

• 🟦 Chevrolet Tahoe (2014–2019) — Dardoor Manual Link ↗
• 🟥 GMC Yukon (2014–2019) — Dardoor Manual Link ↗
• 🟩 Toyota Sequoia (All manuals category) — Dardoor Manual Link ↗
• 🟨 Nissan Armada (2015) — Dardoor Manual Link ↗
• ⬛ Cadillac Escalade (2007–2013) — Dardoor Manual Link ↗

📣 Recalls, Advisories & Safety Alerts

1. Recall: Rearview camera may show distorted/inverted/blank image (includes 2015–2017 Expedition coverage under certain campaigns).
2. Recall: Rearview camera connector/PCB terminal issues (notably affecting some 2015 units).
3. Recall: Front HVAC blower motor failure behind glovebox may increase fire risk (2015–2017).
4. Recall: Brake master cylinder leak into brake booster can reduce braking performance (notably 2016–2017 under key campaigns).
5. Recall: Expanded brake master cylinder campaign coverage on certain 2017–2018 applications (some 2017 Expeditions included).
6. Recall: Seat belt pretensioner concern (warning light / unintended deployment risk in certain campaigns; verify VIN coverage).
7. TSB/SSM: Instrument cluster overspeed warning displayed without reaching the speed (software-related cluster behavior).
8. TSB/SSM: Parking aid sensor harness availability/service guidance for certain 2015–2017 Expedition/Navigator applications.
9. TSB/SSM: HVAC blower intermittently inoperative guidance for certain Ford/Lincoln platforms including Expedition/Navigator ranges.
10. TSB/SSM: No-start with DTC P025A stored (fuel pump module control circuit guidance noted for some 2016–2017 applications).

🧠 Engine Control Module (ECM)

⚙️ Transmission Control Module (TCM)

🛑 ABS / ESC (Brake System)

🎈 SRS Airbag System

– Body Control / CAN Communication