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Slight whistling noise appears when accelerating

Discussion in 'Tech Archive (No Posting)' started by BombayHunter, Mar 19, 2004.



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  1. BombayHunter

    BombayHunter New Member 5+ Year Member 10+ Year Member

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    For about a year now, when I gently press the gas a low-pitch whistling noise is heard from under the hood. I have believed its the throttle body, but I dont know. Has anyone ever had this problem?
     
  2. LazyDC5

    LazyDC5 New Member Registered VIP 5+ Year Member 10+ Year Member

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    do u have an after market intake or stock one?????? and wat kinda car u got???
     
  3. EM1_ProJect

    EM1_ProJect Yeah...it's boosted Registered VIP 5+ Year Member 10+ Year Member

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    if you got an aftermarket intake thats probably it. my aem cai makes that noise when i accellerate..i kinda like it =)
     
  4. anekin007

    anekin007 Unregistered User Registered VIP 5+ Year Member 10+ Year Member

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    did you mess with the throttle body idle screw?
     
  5. BombayHunter

    BombayHunter New Member 5+ Year Member 10+ Year Member

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    yeah

    yeah, I have a 96 civic ex. And I have a cold air intake and 4-2-1 headers. Thats funny you said you like that noise.
     
  6. BombayHunter

    BombayHunter New Member 5+ Year Member 10+ Year Member

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    Which Screw?

    Where is that screw located? Top or Bottom? Thanks for replying.
     
  7. Mr. Lin

    Mr. Lin Admiral Ackbar Registered VIP Registered OG 5+ Year Member 10+ Year Member

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    Check you drive belts...
     
  8. true

    true uhh.. yea. 5+ Year Member 10+ Year Member

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    its the CAI if the only time you hear it is when accelerating... perfectly normal.
     
  9. SQL2112

    SQL2112 New Member 5+ Year Member 10+ Year Member

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    The funny thing is I have an AEM CAI ....AND...I've messed with the idle air control valve. My Civic, like many, has a gunked up idle air control unit. I need to get it replaced but I figured I would mess with the screw anyway! I thought I put it back in the original position.
     
  10. M706

    M706 somethingmorethannothing Registered VIP 5+ Year Member 10+ Year Member

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    yea, nothing to be worried about...its the cai, mine does it all the time...it get annoying sometimes..but then i like to play with it when i have someone else in my car..."what the f**k is that noise!" and i just laugh
     
  11. SilverStyle

    SilverStyle New Member Registered VIP 5+ Year Member 10+ Year Member

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    WERD

    I have a SRintake, makes the sound. Some one asked me if I was running turbo :roll:
     
  12. edhgreatone

    edhgreatone New Member Registered VIP 5+ Year Member 10+ Year Member

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    def. the intake same thing happends with mine but i like that sound its cool
     
  13. Tdog_101

    Tdog_101 New Member 5+ Year Member 10+ Year Member

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    its just the intake sucking in air......duh
     
  14. jdm_ctr

    jdm_ctr New Member 5+ Year Member 10+ Year Member

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    like everyone else said its just the intake suckin air.when i was younger i thought it was a turbo.
     
  15. bloodyadobokid

    bloodyadobokid Rock and Roll Friendly Registered VIP 5+ Year Member 10+ Year Member

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    Ever since I removed my exhaust I could actually hear my intake. Sounds nice.
     
  16. phill11204

    phill11204 Happy New Year!!!!!! Registered VIP 5+ Year Member 10+ Year Member

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    where is the the idle air control unit? just wondering,
     
  17. SQL2112

    SQL2112 New Member 5+ Year Member 10+ Year Member

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    Its on the back if the intake manifold..has a little black tube thing on it which I think is the electric motor. Its how the car sucks air in when your stopped/idle. The screw that open/closes the valve is on the throttle body right above the inlet where your CAI attaches.

    Basically, if you have low/erratic idle the idle air control unit is usually the problem. Always check/replace PCV valve first though since thats only $2.00 and a new idle air control is like $150 at the lowest.

    When the 6th gen civic idle is too low, usually, unless you played with the rubber stops, the hood will rattle very loud. Twist them in farther to make the noise go away then order a new IAC from Autozone or the dealer.

    I know a lot of people hate Autozone but they use Linux so,I gotta support them.

     
  18. BombayHunter

    BombayHunter New Member 5+ Year Member 10+ Year Member

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    Thanks for your replies!

    Thanks for ya's input.
     
  19. KennyC

    KennyC New Member Registered VIP 5+ Year Member 10+ Year Member

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    have u installed any stereo equipment lately ? does the sound still go when ur stereo is off ? when i put my amp in it did the same thing. itd be wierd id be drivin wit the whistle then turn the radio off then its gone lol.
     
  20. MyztikRacing

    MyztikRacing Team Elite Koncepz 5+ Year Member 10+ Year Member

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    lol my AEM CAI does that... ever since i put that on about 10 months ago... its been givin a lil whistle.. .almost like a turbo'd sound... sounds good tho.. leave it . lol
     


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