VACUUM LEAK PLEASE HELP!!!! - MustangForums.com



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Old 11-18-2009, 01:50 PM   #1
saveme20
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Default VACUUM LEAK PLEASE HELP!!!!

I have a 2001 mustang gt and i sounds like it has a vacuum leak and it goes in and out I tried to find it before and couldn't find anything but yesterday I found out where its coming from I guess it's some type of a valve right in front of the throttle body its rectangle and about an inch tall and 2 inches long. It sounds like it's opening and closing but I have no idea what its called and I'm guessing it not suppose to sound like that If any has had this problem or knows what it is PLEASE let me know.
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Old 11-18-2009, 02:45 PM   #2
mrtstang
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I was going to say the pcv valve, but that's on the passanger side valve cover. Are you sure it's not coming from there?
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Old 11-18-2009, 02:49 PM   #3
masterofthepuppets99
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helmholtz device?
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Old 11-18-2009, 02:56 PM   #4
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positive i guess ill go to ford and see what they say
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Old 11-18-2009, 03:10 PM   #5
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If you look below step 11 you will see a black rectangle box that attaches to the throttle body in the corner of the pic thats where the sound is coming from
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Old 11-18-2009, 03:10 PM   #6
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Old 11-18-2009, 03:20 PM   #7
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Have you done the rev modd by changing your gasket in your IAC ?? Which is what that black box is connected to. If so then i believe it should sound like that and its not a leak
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Old 11-18-2009, 04:01 PM   #8
03BottleFedGT
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take off the black box and replace it with a hose you dont need it
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Old 11-19-2009, 02:39 PM   #9
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if you're hearing intermittent sucking noises around that "black box", then its more than likely just the IAC regulating the idle. pretty normal
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Old 11-20-2009, 02:28 AM   #10
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Quote:
Originally Posted by 03BottleFedGT View Post
take off the black box and replace it with a hose you dont need it
What is the point of taking it off?
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