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2004 Ford Expedition heat sheild

Tiny
73EDGAR
  • MEMBER
  • 2004 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 73,000 MILES
Check heat sheild no rattle, can it be that a brokeen revit can cause it to sound like a tin can or maybe something else? Lt does it 10 seconds I start the truck and when I turn the truck off?
Wednesday, December 11th, 2013 AT 5:45 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Take a rubber mallet and tap on the catalytic converter. Sometimes they come loose inside and make noise.

Let me know.
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Wednesday, December 11th, 2013 AT 6:02 PM
Tiny
73EDGAR
  • MEMBER
  • 3 POSTS
You mean the converter is going bad or you mean the lnside of the heat sheilds?
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Wednesday, December 11th, 2013 AT 6:34 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The inside of the converter can come loose and cause a noise. I believe you already checked the heat shields. If the converter makes no noise, check the muffler too.
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Thursday, December 12th, 2013 AT 5:07 AM

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