Car Problem Reports

Ford E-350 Buzzing Noise in Muffler or Exhaust System

Ford E-350 Problem
2 Reports
Me Too

Model Years Affected: 2004, 2005

Exhaust & Emissions Affected: 5.4L V8


Broken pieces from catalytic converter can travel to the muffler and rattle, causing a buzzing noise to be heard in the muffler or exhaust system. The exhaust catalytic converter and muffler/pipe assemblies should be replaced.

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