does anybodys K&N whistle?

 
  #1  
Old 06-08-2008, 03:05 AM
Senior Member
Thread Starter
Join Date: Mar 2008
Location: Seattle, Wa
Posts: 841
does anybodys K&N whistle?

so i got my K&N CAI last week and i started hearing this whistling. well im like wtf mate what could that be so i pop the hood and have my friend slowly drive up the driveway.

well it seemed to be coming from the filter, so i was like now i have to buy a new filter.

so i got the new filter today and it does the same damn thing


so does anybody else's whistle? its only at lower speeds usually in between 1-2000RPM and when i press on the gas


if no one else's does this then im about to scrap the k&n for an AF1 or something
 
  #2  
Old 06-08-2008, 03:17 AM
Senior Member
Join Date: Aug 2006
Location: Bolton, CT
Posts: 235
With just about every intake you are going to hear a lot more air being sucked in. I have a K & N and I guess you could say it whistles. It it normal and there isn't anything wrong with that if that is what you mean?
 
  #3  
Old 06-08-2008, 03:28 AM
Senior Member
Thread Starter
Join Date: Mar 2008
Location: Seattle, Wa
Posts: 841
theres nothing wrong with it and i expect to make more noise but i dont see how its whistling
 
  #4  
Old 06-08-2008, 04:12 AM
Senior Member
Join Date: Apr 2007
Posts: 497
i got an older truck (98) and at low rpm you could say it whistles or whisps...but when you get to the 2500-3 grand range does it growl??? thats how mine works
 
  #5  
Old 06-08-2008, 06:05 AM
Senior Member
Join Date: Oct 2005
Location: Spring/Woodlands, Tx.
Posts: 615
mine makes a loud sucking sound i have a 12" k & n filter on an 8inch long piece of pipe attached to my turbocharger.

i wouldnt scrap the K&N just because of the whistle, my friend had a mac cai on his truck and it did the same whistle thing your talking about.
 
  #6  
Old 06-08-2008, 08:18 AM
Senior Member
Join Date: May 2007
Location: Orlando
Posts: 2,101
For me (and AFE) it kinnda whistles, but it's more a noise of it sucking in air. It only does it when I push on the throttle in the low RPM's, and only for a little bit. If I really look for it, I can make it slightly whistle constantly, but it's only at a very small RPM range.

Really, you get used to it, and I personally like it, especially the growling part.
 
  #7  
Old 06-08-2008, 10:02 AM
Senior Member
Join Date: Jan 2008
Posts: 138
im about to buy an AF1 just because i like the sound of the whistle.. it almost sounds like a diesels turbo.. i like it a lot... almost all CAI will whistle.. your hearing the CAI do its job, suck in more air!!
 
  #8  
Old 06-08-2008, 12:21 PM
Senior Member
Join Date: Dec 1969
Location: TUCSON,AZ,USA
Posts: 996
If you have a whistle from your K & N I would bet you removed the small black plastic muffler that was installed by Ford. I don't have a picture but it is about 2 by 4 inches, black plastic with a hose at each end.
Mine did the whistle and to get rid of it I bought a small piece of hose with a 90 degree bend in it and put the muffler device back in line.
 
  #9  
Old 06-08-2008, 01:35 PM
Senior Member
Thread Starter
Join Date: Mar 2008
Location: Seattle, Wa
Posts: 841
could you get a pic of that idk what your talking about
 
  #10  
Old 06-08-2008, 04:23 PM
dirtyd88's Avatar
Senior Member
Join Date: Mar 2008
Location: Burleson, TX
Posts: 4,191
just like everyone else says, its normal. mine whistles really loud when i jump on it at about 3k rpm. no need for a new filter.
 
  #11  
Old 06-08-2008, 05:07 PM
Technical Article Contributor
Join Date: Aug 2006
Location: Northern California
Posts: 7,862
My K&N just roars.

Put an exhaust on for more sound.
 
  #12  
Old 06-08-2008, 07:22 PM
Senior Member
Join Date: Jan 2007
Location: Austin
Posts: 1,184
My 3" AF1 never whistled, but there was a distinct "whoosh" sound when steppin' on it from low revs.

For some reason that sound has all but disappeared since I started running the tunes from Troyer.

I think the induction sounds are normal with any "cai", but there shouldn't be anything high-pitched. Like a whistle noise.

 
  #13  
Old 06-08-2008, 07:59 PM
Senior Member
Thread Starter
Join Date: Mar 2008
Location: Seattle, Wa
Posts: 841
Originally Posted by TexEdition View Post
My 3" AF1 never whistled, but there was a distinct "whoosh" sound when steppin' on it from low revs.

For some reason that sound has all but disappeared since I started running the tunes from Troyer.

I think the induction sounds are normal with any "cai", but there shouldn't be anything high-pitched. Like a whistle noise.


see thats what im thinking, mine does roar when i step on it and i know they are louder but i wouldnt think anything would be making a whistling noise.


it sound just make a whoosh sound from sucking air in.

this is a loud pitched whistle too, i can hear it inside the truck when i dont have any music playing and the windows up.
 
  #14  
Old 06-08-2008, 08:10 PM
Senior Member
Join Date: Jan 2007
Location: Austin
Posts: 1,184
Originally Posted by th3godf4th3r View Post
see thats what im thinking, mine does roar when i step on it and i know they are louder but i wouldnt think anything would be making a whistling noise.


it sound just make a whoosh sound from sucking air in.

this is a loud pitched whistle too, i can hear it inside the truck when i dont have any music playing and the windows up.

Yeah, there has to be a leak or loose connection there somewhere. K&N is a high quality intake... you shouldn't be getting a whistle.

I'd double check everything (sounds like you have already though), and if you don't find the problem try contacting K&N. It sure doesn't sound normal.
 
  #15  
Old 06-08-2008, 08:59 PM
Senior Member
Join Date: Aug 2007
Location: Des Moines, IA
Posts: 2,473
It's normal. If you have a throttle body spacer then it will make the noise louder. Like Msall said, changing out the exhaust will produce more of a roar.
 

Thread Tools
Search this Thread
Quick Reply: does anybodys K&N whistle?


Sponsors

Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: