IAC Air Leak?

soulta

New Member
Oct 3, 2011
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May be a dumb question but is the IAC supposed to leak air from here? I just installed this brand new IAC and both the old and new one leak from this round part. I have no other vacuum leaks. Also when plugged in or unplugged there is no change in Idle Speed or RPMs. Possibly the TB? On a 1999 Cobra.

 
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May be a dumb question but is the IAC supposed to leak air from here? I just installed this brand new IAC and both the old and new one leak from this round part. I have no other vacuum leaks. Also when plugged in or unplugged there is no change in Idle Speed or RPMs. Possibly the TB? On a 1999 Cobra.
I have the same issue on my 96GT. I can't hear the air leak as well as yours, but when pumping smoke through a vacuum port, I get a ton of smoke coming out of that part of the IAC. Got no answers from anyone on here about the issue, but good luck.