Humming sound

[r_towle]

So, I have this humming sound.
Not speed related, random and I cannot control when it happens.

It does not always happen when it cold, and after a while it comes on and goes on and off at random.

I can make it stop by hitting the brakes.
So I replaced the front bearings. And ball joints.
Came back the next day.

It vibrates the steering wheel, and the tone does not change like a cv joint or bearing would do.

Here is the odd part.
When I just touch the brakes, just enough to get the brake lights to activate, but not enough to get the brakes to apply, the noise stops.

A friend suggested it may be electrical...

This is a 1984 Carreras convertible with 240k miles...

So I read about the in tank fuel filter sock, and how a warm or hot fuel pump will hum.
I may do that swap anyways just because of the high mileage.

This car has hummed since I bought it over two years ago, and I replaced the fuel pump and fuel pump relay (under the seat) at that time so I would not end up being stranded...

Still humming, and has gotten louder now.

Rich

[mlfox]

Could be a brake caliper piston not retracting, letting a pad drag against a rotor.

Regards,
mlfox

[r_towle]

Thanks,
Checked all of them....

[Reiver]

check everything in your parking brakes.

[r_towle]

Did not change nor stop when I used the parking brake while driving....

[r_towle]

New ideas?

[theiceman]

pad hum . did you you use that anti brake squeel stuff ?