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Engine noise

Old Aug 6, 2007 | 05:23 PM
  #1  
mattyg's Avatar
mattyg
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From: victoria
Engine noise

back ground
91 f250 7.3 e40d 150k

after driving for a bit(an hour or so) the motor develops a noise from the area around the torque converter, the noise is only audible between 825 to 1000 rpm
the noise sounds like a muffled portable air compressor(you know the sound)
everything is running great, just the noise bothers me not knowing what it is
any advice would be great
matt
 
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Old Aug 6, 2007 | 09:56 PM
  #2  
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catfish101
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From: KY
That could be a few different of things. Torque converter, trans. pump. exhaust systems can resinate some odd ball sounds that a person would thing it was an exhaust.
 
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Old Aug 7, 2007 | 07:21 AM
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matts156
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From: New Jersey
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Sounds like a pretty good candidate for an exhaust leak.
 
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Old Aug 10, 2007 | 08:32 PM
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mattyg
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From: victoria
thx peeps
the POs mechanic said that it needed a new exhaust in the near future, i guess thats now, but the noise only comes around after about an hour of driving?? i will try to explain it better after my next outing this weekend
bye for now
 
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