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Puffing noise. Not exhaust leak.

Discussion in 'Technical Chat' started by Stephenson105, Dec 5, 2008.

  1. Dec 5, 2008 at 8:05 AM
    #1
    Stephenson105

    Stephenson105 [OP] New Member

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    Dec 3, 2008
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    3
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    Male
    California
    K&N Cold Air Intake, LCE Big Bore Throttle Body, Nology Hotwire Spark Wires and Plugs, Pace Setter Headers, Flowmaster 40 Series Muffler.
    I recently broke the throttle body by accident so I replaced it with a big bore one for LC Engineering. Now there seems to be almost a puffing kinda noise if I put too much gas in it as i accelerate. The more you throttle while accelerating the louder the noise gets but it is not there during idle or coasting or even if I rev it up in neutral. I took it to get checked out with a mechanic and he said that it idles at spec and that he couldnt see anything wrong with it and that he thinks its just caused from the new throttle body. I called LC and they said that the throttle body shouldnt cause any new noises or any problems. So im pretty stumped on this one can someone please help me out.
     
  2. Dec 12, 2008 at 3:11 PM
    #2
    dabighi

    dabighi Well-Known Member

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    what year is the truck? and you ever get it resolved.
     
  3. Dec 12, 2008 at 5:49 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Sounds like a vaccume line/hose may have been knocked off. Check the brake booster line first, if thats not it, check all the other vaccume conections.
     
  4. Dec 14, 2008 at 5:42 PM
    #4
    Stephenson105

    Stephenson105 [OP] New Member

    Joined:
    Dec 3, 2008
    Member:
    #11247
    Messages:
    3
    Gender:
    Male
    California
    K&N Cold Air Intake, LCE Big Bore Throttle Body, Nology Hotwire Spark Wires and Plugs, Pace Setter Headers, Flowmaster 40 Series Muffler.
    I have checked the vacuum lines and they all seem ok. I did have the negative disconnected at one point but maybe it wasn't for long enough. The guy I took it too said that it idles at spec and thinks its noise from the intake but it def doesn't sound like an intake noise. It almost sounds like an exhaust leak at the headers to block but ive checked that and it seems to have no leaks.
     
  5. Dec 14, 2008 at 5:42 PM
    #5
    Stephenson105

    Stephenson105 [OP] New Member

    Joined:
    Dec 3, 2008
    Member:
    #11247
    Messages:
    3
    Gender:
    Male
    California
    K&N Cold Air Intake, LCE Big Bore Throttle Body, Nology Hotwire Spark Wires and Plugs, Pace Setter Headers, Flowmaster 40 Series Muffler.
    and its a 99 Tacoma with the 2.7L 3RZ.
     
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