Airflow buildup noise...

[Jon97]

Hey all,

I tried to search for this and didn't do so well. My 97X is making an "airflow buildup" noise with some "flapping" noise on acceleration. It happens in all gears with O/D on and off. I recently removed 2 shield plates from underneath because they rotted out and sounded horrible vibrating down there. There is absolutely no loss of power or handling. Air filter is K&N, just cleaned it.

Any ideas fellas?
Thanks,

Jon

 

[Turdle]

Which engine do you have?

 

[aldive]

Can you better describ the sound(s)?

 

[Jon97]

V6 SOHC...

As you accelerate up to 45 and 50 mph the sound builds up like a turbo. As the pressure builds up the sound "climbs" and gets higher pitched like its going to blow up. on a scale of 1-10 the volume of the noise is 2.5. its heard best from the drivers seat with the windows up.

 

[gijoecam]

Does the sound change intensity when you get on the gas or coast? If so, classic signs of a bad u-joint. If not, we'll keep askin' questions.

-Joe

 

[NightRock]

check if there is any hole in MAF hose..or intake line it happened to me I found a small crack which creating whissle sound while accelerating

 

[Jon97]

The sound does change as you fluctuate speed. it seems like if you maintain speed you can get it to stop. I haven't really heard the build up noise this weekend. It might be something loose and rattling. There is a dull shaking sound which I thought was coming from the rear but after I got off the highway tonight it sounds like its coming from the front and its louder now. I think its time for a visit to the mechanic.