4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

engine burping?

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Old Feb 3, 2012 | 11:54 PM
  #1  
Sean W.'s Avatar
Sean W.
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Default engine burping?

hey guys,

my engine sounds like its burping, kind of a throaty gargle that sounds like its coming somewhere from the intake system, from the intake its self all the way down to the air cleaner. A lot of my friends are highly trained mechanics including the high school auto shop teacher who was a professor at UTI, cant quite put their finger on what it could be. it happens mostly after letting off the gas, but it does it sometimes when its just idling.

It sounds JUST like someone taking a hit from a bong, just a little deeper and throatier.

any clues as to what it could be, maybe you ran into this problem and can shed some light on the problem, id really appreciate it.
Old Feb 5, 2012 | 07:57 PM
  #2  
cliffyk's Avatar
cliffyk
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From: Saint Augustine, FL
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It's a worn IAC, more about it here...
Old Feb 7, 2012 | 08:45 AM
  #3  
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Brute03
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yep IAC going out, and it'll only get worse. sort of sounds like a toilet flushing
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