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Home/DTC Codes/Dodge/Durango/2004-2009 4.7L V8/P0400
P0400

Exhaust Gas Recirculation (EGR) Flow

2004-2009 Dodge Durango 4.7L V8

Moderate SeverityPowertrainGeneric (SAE)

Description

The EGR system flow is not within expected parameters.

Symptoms

  • Check Engine Light
  • Rough idle
  • Pinging/knocking
  • Increased NOx emissions
  • Failed emissions test

Common Causes

  • Clogged EGR passages
  • Faulty EGR valve
  • EGR valve stuck closed
  • Carbon buildup
  • Vacuum line issue

Diagnostic Steps

  1. Test EGR valve operation
  2. Check EGR passages for carbon buildup
  3. Test vacuum supply to EGR valve
  4. Monitor EGR position with scan tool
  5. Inspect EGR tube

Repair Notes

Clean EGR valve and passages. Replace EGR valve if stuck or faulty.

Related Codes

P0401EGR Flow Insufficient DetectedP0402EGR Flow Excessive DetectedP0403EGR Control CircuitP0404EGR Control Circuit Range/PerformanceP0405EGR Sensor A Circuit Low

Other Powertrain Codes

P0400 on Other Vehicles

Dodge Attitude

2015-2025 1.2L I3

Dodge Avenger

1995-2000 2.0L I4

Dodge Avenger

1995-2000 2.5L V6

Dodge Avenger

2008-2014 2.4L I4

Dodge Avenger

2008-2014 2.7L V6

Dodge Avenger

2008-2014 3.5L V6

Dodge Avenger

2008-2014 3.6L V6

Dodge Avenger

2011-2014 3.6L V6 Pentastar

Common Questions

What does code P0400 mean on a 2004-2009 Dodge Durango?

P0400 stands for "Exhaust Gas Recirculation (EGR) Flow". The EGR system flow is not within expected parameters.

What are the symptoms of P0400 on a Dodge Durango?

Common symptoms of P0400 include: Check Engine Light, Rough idle, Pinging/knocking, Increased NOx emissions, Failed emissions test.

What causes P0400 on a 2004-2009 Dodge Durango?

Common causes of P0400 include: Clogged EGR passages, Faulty EGR valve, EGR valve stuck closed, Carbon buildup, Vacuum line issue.

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