• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Fiesta ST Forum and Fiesta ST community dedicated to Fiesta ST owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Fiesta ST Forum today!


What is this noise??

Messages
325
Likes
503
Location
Raleigh, NC, USA
#3
The factory diverter valve does some funky stuff in the lower RPM ranges at light throttle input (I'm assuming to keep torque targets met). Does it disappear as you tip in to throttle more? I feel like my axles make some weird rotational noises as well. It is quiet though so it's hard to know I'm addressing the right thing you're hearing.
 


Messages
259
Likes
342
Location
Kalamazoo, MI, USA
#4
How many miles are on the car? To me it sounds like a pulley bearing from one of the accessories is going bad. That was an awfully quiet video though.
 


OP
fiestafajita$
Messages
14
Likes
10
Location
United States
Thread Starter #5
The factory diverter valve does some funky stuff in the lower RPM ranges at light throttle input (I'm assuming to keep torque targets met). Does it disappear as you tip in to throttle more? I feel like my axles make some weird rotational noises as well. It is quiet though so it's hard to know I'm addressing the right thing you're hearing.

I've heard that noise your speaking about as well, coming from the back left wheel area while driving.

And yes it goes away when dipping into the throttle more,
It's just right in the the lower RPM stages
 


OP
fiestafajita$
Messages
14
Likes
10
Location
United States
Thread Starter #6
How many miles are on the car? To me it sounds like a pulley bearing from one of the accessories is going bad. That was an awfully quiet video though.

It's currently at 26k miles,

When I get home to my computer, I'll edit the video to try and crank the volume up on the noise,
It does sound like a wobbly bearing.

I'm gunna get someone to help me set the RPMs to trigger the noise- and deep dive in the hood to find where exactly it's coming from.

Sorry for the super quiet video, it's all I had on me to record the noise
 




Top