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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2014 Specific V6 Tech

Hissing Noise from C&L CAI?!

  • Thread starter Thread starter WobWob
  • Start date Start date Feb 8, 2011
W

WobWob

New Member
Feb 8, 2011
5
0
0
Feb 8, 2011
#1
  • Feb 8, 2011
  • #1
Hey I'm new here. I have recently installed a C&L CAI on my 2011 3.7L. Everything seems to fit correctly. I was quite proud of myself when i finished installing it, but when I started her up I heard something alarming. When I gas the throttle there is a sort of hissing noise that is coming form the engine bay. I can't tell where the sound is coming from specifically because I cant be hovering over the engine and gassing it at the same time. When i took the car out for a test drive there were some noticeable changes in the sound from stock but I am not sure what is "normal". I fear that the hissing noise is actually a sucking noise and that there is some gap somewhere that i cant see. Maybe there is some leakage around the trottle body? It would be awesome if anyone could let me know what i should have expected from the swap, and any suggestions for diagnosing the noise. I have not had a chance to test the performance changes but it seems to be running on par with the stock intake.
 

echo7

10 Year Member
Mar 30, 2005
706
41
59
FL
Feb 9, 2011
#2
  • Feb 9, 2011
  • #2
As long as you installed it right, hearing the intake after installing a CAI is normal. My K&N CAI makes a hissing sound as well when giving it gas. I can only hear it with the windows down however, and it's pretty subtle. So unless it's abnormally loud, you're probably alright. If you want, have a friend give it some gas while you look at the intake to be sure where the sound is coming from.
 
F

fuddmiester

New Member
Jun 14, 2005
3
0
0
New York
Mar 5, 2011
#3
  • Mar 5, 2011
  • #3
I wouldn't worry about it.... my RAM 1500 does that, I believe its some kind of back pressure burp or relief breath from having too much air coming in. Have had it on the truck just about 5 years now.... been doing it since she went on.
 

OHHitsKB

New Member
Jul 5, 2010
29
0
2
Norman, OK
Mar 5, 2011
#4
  • Mar 5, 2011
  • #4
That's the sweet sound of intake my friend. Enjoy.
 
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