Front grind, moan, dragging noise last second of braking.

[nickmcc92]

My driver side makes a grinding, dragging, moaning sound on the last second of braking and It rarely happens.
What can it be?

[mr ilia]

Worn out brake pads would usually make this type of noise.

[ELVA164]

Worn out brake pads would usually make this type of noise.

Yeah, do you have your sensors connected? If not, I would pop the wheels off and check the pad thickness. Another thought could be a sticky piston in the caliper, but the noise sounds a bit loud to be that.

[nickmcc92]

Brakes are still good. I might have put the sensor on wrong but how would that cause a problem.
I rotated the rotor with the wheel off and the rotor has an uneven spot and doesnt spin freely, but I still don't understand how it would cause this deep, dragging sound

[nickmcc92]

Problem still not solved. Pads are good. Only visual problem is the spring looking rubber on the caliper is ripped, but how would that cause a problem?

[jeffnhiscars]

6 months is a long time to live with a brake problem and not be wrapped around a pole :-)

The uneven spot could be a sign of a warped rotor and the rubber is a dust boot intended to protect your piston from being damaged. If it torn it will quickly result in a sticking caliper, reduced brake function and then a dysfunctional caliper.

Time to dive in or take it to an expert

[AndrewBird]

Guide pins could be sticking.

Oh, and there will be a little bit of friction when you spin the wheel. The caliper moves away from the rotor when you let off the pedal, but not enough to clear completely, hence a slight mount of drag. Should still be able to turn the rotor pretty easily though. If not, the piston might be sticking.

[nickmcc92]

I think you're right Nitro. I will be sure to replace them soon because I do have some wheel wheel friction. Thanks guys.

[nickmcc92]

I cleaned the guide pins and the noise hasn't come back.. yet. Will replace soon.
Thanks guys.