Newbie
Joined: May 2013
Posts: 7
From: California
New Here- Need Help!
Hi all- trying to figure out how to start a thread but am not seeing anything?
Guess I'll post my issue here.
Have an '04 Mustang, 3.9, V6.
Engine started making a loud humming noise in Sept., BUT you could only hear it when sitting inside the car.
Mechanic had a hard time figuring it out, finally thought alternator bearing- noise disappeared for 6 mos. and is now back.
This time same deal, not sure, think it's idler pulley bearing- noise came back 2 days later.
Cleaned the IAC valve which wasn't that dirty- noise still there.
Went to Ford yesterday- he used the stethoscope to listen to all parts and said everything is quiet, there is nothing obvious going on, even though the noise is there (to me like a vacuum sound and only when it idles, doesn't move up and down when pushing on the gas or turn on the a/c, etc.)
Car is running fine, no obvious issue, and am being told to keep driving until something shows itself, which makes me nervous.
Any ideas?
Guess I'll post my issue here.
Have an '04 Mustang, 3.9, V6.
Engine started making a loud humming noise in Sept., BUT you could only hear it when sitting inside the car.
Mechanic had a hard time figuring it out, finally thought alternator bearing- noise disappeared for 6 mos. and is now back.
This time same deal, not sure, think it's idler pulley bearing- noise came back 2 days later.
Cleaned the IAC valve which wasn't that dirty- noise still there.
Went to Ford yesterday- he used the stethoscope to listen to all parts and said everything is quiet, there is nothing obvious going on, even though the noise is there (to me like a vacuum sound and only when it idles, doesn't move up and down when pushing on the gas or turn on the a/c, etc.)
Car is running fine, no obvious issue, and am being told to keep driving until something shows itself, which makes me nervous.
Any ideas?
