Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Lincoln Aviator AWDFACTORY OEM SERVICE PROCEDURE
Engine Mechanical: Mechanical: Engine
- Specifications
- Description And Operation
- Diagnosis And Testing
- In-Vehicle Repair
- Exhaust Gas Recirculation (EGR) Valve
- Positive Crankcase Ventilation (PCV) Valve
- Upper Intake Manifold
- Lower Intake Manifold
- Valve Cover LH
- Valve Cover RH
- Crankshaft Pulley and Crankshaft Seal
- Engine Front Cover, Timing Gears, Chain and Tensioners
- Notes
- Item 1: Accessory Drive Belt Removal Note
- Item 33: Water Pump Pulley Bolts Removal Note
- Item 35: Crankshaft Pulley Bolt Removal Note
- Item 37: Crankshaft Pulley Removal Note
- Item 38: Crankshaft Seal Removal Note
- Item 39: Engine Front Cover Removal Note
- Items 42-47: Timing Chain Tensioner Removal Note
- Items 41-78: Timing Drive Components Installation Note
- Item 39: Engine Front Cover Installation Note
- Item 38: Crankshaft Seal Installation Note
- Items 35-37: Crankshaft Pulley Bolt Installation Note
- Camshaft, Valve Springs and Valve Seals
- Notes
- Items 1-4: Exhaust Valve Spring Retainer Keys, Valve Springs and Valve Seals Removal Note
- Items 5-8: Intake Valve Spring Retainer Keys, Valve Springs and Valve Seals Removal Note
- Items 11-9: Camshaft Bearing Caps Installation Note
- Items 8-5: Intake Valve Seals, Valve Spring and Valve Spring Retainer Keys Installation Note
- Items 4-1: Exhaust Valve Seals, Valve Springs and Valve Spring Retainer Keys Installation Note
- Camshaft Roller Follower and Hydraulic Lash Adjuster
- Exhaust Manifold LH
- Exhaust Manifold RH
- Oil Filter Adapter
- Oil Pressure Switch
- Oil Level Indicator and Tube
- Oil Pan, Oil Pump, Oil Pump Screen and Pickup Tube
- Flexplate or Flywheel and Crankshaft Rear Seal
- Notes
- Item 4: Crankshaft Rear Oil Slinger Removal Note
- Item 5: Crankshaft Rear Oil Seal Removal Note
- Item 7: Crankshaft Rear Oil Seal Retainer Plate Installation Note
- Item 6: Crankshaft Rear Oil Seal Retainer Bolts Installation Note
- Item 5: Crankshaft Rear Oil Seal Installation Note
- Item 4: Crankshaft Rear Oil Slinger Installation Note
- Engine Support Insulators
- Cylinder Heads
- Engine
- Disassembly
- Disassembly And Assembly Of Subassemblies
- Assembly
- Installation
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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