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2011 FORD F-250
6.2L V8•4WD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor551Torque4578Fluid9DTC939Battery1Maintenance0Recalls2
P1405moderate severityPowertrain

DPFE Sensor Upstream Hose Off or Plugged

on 2011 Ford F-250 6.2L V8 · 4WD

What this code means

The DPFE sensor upstream hose is disconnected or plugged. This prevents the sensor from accurately measuring exhaust backpressure before the EGR orifice.

Symptoms

  • Check Engine Light
  • Poor EGR flow control
  • Rough idle
  • Failed emissions
  • Reduced power

Common causes

  • Disconnected upstream DPFE hose
  • Plugged upstream DPFE hose (carbon buildup)
  • Cracked hose
  • Faulty DPFE sensor

Diagnostic steps

  1. Visually inspect upstream DPFE hose (hose closer to exhaust manifold)
  2. Check for carbon blockage in hose
  3. Blow through hose to verify flow
  4. Replace hose if cracked or deteriorated
  5. Test DPFE sensor if hoses are OK

Repair notes

Reconnect or replace DPFE upstream hose. Clean carbon from hose. Replace DPFE sensor if hoses are good.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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