Buzzing Noise in Muffler or Exhaust System on Ford E-150
Problem overview
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.
7 people reported this problem
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Ford E-150 vehicles with this problem
Average mileage: 112,000 miles
(112,000 - 112,000)
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