Catch22ska4 Posted October 24, 2008 Share Posted October 24, 2008 Hey guys, I have a 1997 2.5GT wagon and everytime the car is running now, it seems to be making a humming noise. I popped the hood and noticed the airbox was shaking and so I popped it off and it was definitely coming from inside there. When the car turns off the sound goes too, but you can hear the sound slowly die after... Any ideas?? Link to comment Share on other sites More sharing options...
Bdubs Posted October 24, 2008 Share Posted October 24, 2008 Have you taken the piping off that goes all the way to the throttlebody? Possibly a leaf or some debris is obstructing something in there, causing the noise. Link to comment Share on other sites More sharing options...
SuBbA Posted October 27, 2008 Share Posted October 27, 2008 the intake silencer is out or loose maybe (Snorkus), its a tube thats in the fender. Link to comment Share on other sites More sharing options...
blackfang Posted October 27, 2008 Share Posted October 27, 2008 I would guess whoever has checked your air filter did not correctly fit the airbox back together. Check the airbox and see if there is any air getting into the box. Sometimes it makes a flutter sound when you apply the gas. [SIZE=1][URL="http://public.fotki.com/blackfang/"]Pics[/URL] [B]08 KawasakiZZR 600- exhaust and other mods 98 Camaro Z/28 HT- some mods......street/strip car 07 Legacy 2.5i- SPT exhaust...daily driver[/B][/SIZE] Link to comment Share on other sites More sharing options...
Catch22ska4 Posted November 3, 2008 Author Share Posted November 3, 2008 I checked the piping for debris and didn't find any. But it is still making the humming noise. It doesn't seem as limited to the airbox area now, but maybe a little quieter. How would you check the intake silencer to see if it's loose or out? I would guess whoever has checked your air filter did not correctly fit the airbox back together. Check the airbox and see if there is any air getting into the box. Sometimes it makes a flutter sound when you apply the gas. What do you mean by it not being fitted back on properly? Like the plastic outer edges are not lining up? How do you get to the intake silencer to see if it's loose or out? Would that be under the air filter? Thanks again for the help! Link to comment Share on other sites More sharing options...
blackfang Posted November 3, 2008 Share Posted November 3, 2008 What do you mean by it not being fitted back on properly? Like the plastic outer edges are not lining up? How do you get to the intake silencer to see if it's loose or out? Would that be under the air filter? Thanks again for the help! Yes. The box should be sealed and not allow air to get in there. If you can see the air filter from the side, then it is not lined up right. [SIZE=1][URL="http://public.fotki.com/blackfang/"]Pics[/URL] [B]08 KawasakiZZR 600- exhaust and other mods 98 Camaro Z/28 HT- some mods......street/strip car 07 Legacy 2.5i- SPT exhaust...daily driver[/B][/SIZE] Link to comment Share on other sites More sharing options...
Oscar Suazo Posted March 5, 2010 Share Posted March 5, 2010 So what's making the huming I have the samething going on the air box is seld can figuer it out Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted March 5, 2010 I Donated Share Posted March 5, 2010 Mine does the same thing (97 LGT) with a cone filter installed. I've never been able to figure it out but everything on the intake checks out ok. If everything looks fine, I wouldn't worry about it -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
Oscar Suazo Posted March 7, 2010 Share Posted March 7, 2010 That's good to know I was thinking it was the mass air flow senser it should be fine I'll be buying a new engine but not the same 2.2L just haveing made my mind up about what 2.5L Link to comment Share on other sites More sharing options...
jamal Posted March 11, 2010 Share Posted March 11, 2010 I have the humming too. It was just suggested to me that it might be the IACV. Link to comment Share on other sites More sharing options...
Platinum_Racing Posted March 11, 2010 Share Posted March 11, 2010 How would you check the intake silencer to see if it's loose or out? What do you mean by it not being fitted back on properly? Like the plastic outer edges are not lining up? How do you get to the intake silencer to see if it's loose or out? Would that be under the air filter? Thanks again for the help! The intake resonator is located behind the bumper underneath the airbox. To get to it, you can either remove the fender which is a bit of a pain in the ass, or just remove the plastic dust cover that screws to the underside of the bumper. I would try to reseat the filter. undo the clps holding the top of the airbox to the bottom. Remove the filter and check that it seats correctly when you reinstall it. Check the top of the airbox seals against the filter as well. Link to comment Share on other sites More sharing options...
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