Emergency brake recall fix

[mallardlake]

Has anyone watched (listened to) the video yet? I need some feedback

 

[HardRightEdge]

Personally, I don't trust phone audio to properly represent how loud something is. If it's loud, it's wrong. If it isn't, it ain't.

 

[MrMCar]

There is something wrong there. Tell me, if you place the car in drive, then reverse (NOT moving away) is the noise the same/different/gone?
There should only be a momentary slight hum as the electric motors either apply or remove pressure from the brake pads!

 

[mallardlake]

I will try the drive, then reverse. But I do know it only clunks when the brake caliper/pads let go of the rotor. It will make the humming/whirring noise after shifting out of park, as it releases the brake, but the caliper remains stuck to the rotor until the car moves. then lets go with a clunk, but not all the time. Almost like the brake pads are frozen to the rotor, but it's always in a heated garage. Maybe snow melts and rusts the pads?

______________________________

 

[MrMCar]

Maybe snow melts and rusts the pads?

Could very well be indeed. Back in the day my shop installed all kinds of aftermarket (go fast stuff) brake pads. Many had a higher metallic composition than the factory brake pads.
Brake rotors are indeed similar to railroad tracks. They lightly surface rust when wet and put away. One or two applications of the brake pads and it's gone.
Some types of brake pads can INDEED temporarily stick to the brake disc as a result of oxidation.
The noise could be (??) the pad forcefully being pulled away from the inside surface of the disc.

Tell me; Genuine Kia pads & rotors, OEM or aftermarket?

 

[mallardlake]

Maybe snow melts and rusts the pads?

Could very well be indeed. Back in the day my shop installed all kinds of aftermarket (go fast stuff) brake pads. Many had a higher metallic composition than the factory brake pads.
Brake rotors are indeed similar to railroad tracks. They lightly surface rust when wet and put away. One or two applications of the brake pads and it's gone.
Some types of brake pads can INDEED temporarily stick to the brake disc as a result of oxidation.
The noise could be (??) the pad forcefully being pulled away from the inside surface of the disc.

Tell me; Genuine Kia pads & rotors, OEM or aftermarket?

The car has 11,000 miles on it, all original parts. Seems to only make the noise when shifting to reverse, but that could be because we back out of the garage, so maybe we are not aware of the noise when out of the garage and shifting to drive.

 

[G-341122]

I don't have tension on the transmission. You can see the caliper stuck to the rotor when trying to back out of the garage, and then it releases with a clunk. Still trying to get a video of it. Thanks

Exactly the same with mine. I believe that it is surface rust from brake pad to rotor. I live near a fresh water lake and just overnight the build up of surface rust is ridiculous. CHEAP STEEL being used and cheap rotors