2003 Ford F-550 Super Duty

Reliability tier: verified - see /disclosure/

Engine: 6.8L V10 2V (Triton, 6.8L), 2v

310 hp (Wikipedia/Ford spec). Chassis cab: gasoline = V10 only (no 5.4). 2V SOHC era.

Applicable failure modes (6)

• Ignition coil (COP) failure / misfire
• EGR system faults / DPFE sensor failure (gas)
• Exhaust manifold stud breakage / manifold leak
• FPDM (fuel pump driver module) corrosion / failure
• Spark plug ejection / stripped plug threads (2V heads)
• Timing chain / tensioner / guide wear (2V)

Applicable parts (8)

• DPFE Sensor (EGR pressure feedback)
• EGR Valve, gas engines
• Exhaust Manifold Stud/Bolt Repair Kit (+ gaskets)
• FPDM (Fuel Pump Driver Module)
• Ignition Coil, COP - 2V engines (Motorcraft DG-508)
• Spark Plugs, 2V heads (Motorcraft SP-479 / Ford AGSF-22W-MX)
• Spark Plug Thread Repair Kit, 2V heads (Time-Sert / Calvan 38900-class)
• Timing Chain Kit, 2V (chains, tensioners, guides)

Platform recipes (3)

• 2V plug maintenance: keep plugs from ejecting; know the repair path if a seat is damaged
• 3V spark plug service: remove original plugs without breakage, install the one-piece update
• Fix the 5.4L 3V cold-start phaser rattle: phasers + chain kit in one front-end job

Reference for this truck