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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Humm from black box

  • Thread starter Thread starter dave_id
  • Start date Start date Sep 26, 2007
D

dave_id

New Member
Jun 2, 2006
44
0
0
Sep 26, 2007
#1
  • Sep 26, 2007
  • #1
The little black box that is in between the IAC and the intake is making a loud whistle/humm noise. When I hold it I can feel the humming and if I move it around i can manipulate the noise making it louder, lower, it can sound like a trumpet if I put it in certain positions. I think the box is broken because the hoses seem fine. Do I actually need that thing? Thanks :SNSign:
 

Mike97gt

it doe snot
Founding Member
Jan 26, 1999
10,633
7
89
the people's republic of massachusetts
Sep 26, 2007
#2
  • Sep 26, 2007
  • #2
most of the time when you have iac noises it's the valve itself. But you can try to replace the box and see if that helps.
 
R

RoskiStang

New Member
Sep 12, 2007
21
0
0
Alabama
Sep 27, 2007
#3
  • Sep 27, 2007
  • #3
ive seen em without it but its still prbly ur iac makin the noise
 
D

dave_id

New Member
Jun 2, 2006
44
0
0
Sep 27, 2007
#4
  • Sep 27, 2007
  • #4
ok thanks for the replies. After much in depth research it SEEMS like the IAC is the cause. I will do some more diagnosing after my tests/papers are done.
 
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