GM Volt Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
52 Posts
Discussion Starter #1 (Edited)
Essentially I've had this since I bought the car but all of a sudden it's much worse. It's only the left driverside brake. It's not just when you stop from a small crawl. You can kind of hear it when your breaking at a higher speed to a stop but rarely.

https://youtu.be/in5CAAU1swI

Thoughts?
 

·
Registered
Joined
·
2,350 Posts
Essentially I've had this since I bought the car but all of a sudden it's much worse. It's only the left driverside break. It's not just when you stop from a small crawl. You can kind of hear it when your breaking at a higher speed to a stop but rarely.

https://youtu.be/in5CAAU1swI

Thoughts?
Carlson H5851Q Front Brake Disc Hardware Kit

Carlson H5852Q Disc Brake Hardware Kit

FWIW: Lube & replacement brake hardware for all 4 caliper(s) (rear&front) on Gen1 will run you @$40 via amazon. If you haven't had this done in a while it could make for a world of difference!:cool:
 

·
Registered
Joined
·
52 Posts
Discussion Starter #3

·
Registered
Joined
·
174 Posts
I have 67k on the car with no brake service. Practically always use L. Are you saying this is what is needed or just saying maybe it'll help?
Mine made that kind of sound with 113k miles and the rear discs looked corroded but the fronts were shiny. I checked the caliper hardware and found no binding or stickiness so I drove with one hand on the park brake button and would set the brake and release over and over to heat up the rear brake and shine the rotor. Every thing is smooth now.
 
B

·
Guest
Joined
·
0 Posts
Oh the sounds you hear when there is no engine running.. mine does the exact same thing but since the breaks look brand new even after 6 years and the fact it just had its MOT makes me not worry 😄
 

·
Registered
Joined
·
3,538 Posts
Go down hills in neutral and step on the brake pedal. That cleans up the rotors.
 

·
Moderator
Joined
·
4,870 Posts
Wish my calipers looked like yours. Mine are all sorts of rusted.
 

·
Registered
Joined
·
667 Posts
Sounds more like a suspension component. I suspect a bushing is dry/rusted. Check control arm bushings and stabilizer bar mounts. The control arm bolts may be starting to seize in the bushings. Try to get some grease into the ball joints as well.
 
F

·
Guest
Joined
·
0 Posts
It sounds like to me a contaminated surface between disc and pad. Doing some hard braking using the brakes may clean things up as some have suggested. The other is to take out pads and clean them by rubbing on a flat sheet of emery paper/cloth. While they are out chamfer the leading and and trailing edges 45 degrees on a grinder. This is a trick I use on all my brake discs, it sometimes helps eliminate brake squeal not that you have that but might down the road. Doesn't hurt.
 
P

·
Guest
Joined
·
0 Posts
To me it doesn't sound like a brake friction noise, sounds like something is flexing, possible bolt/nut not tightened. Are all the lug bolts tightened to spec?
 

·
Registered
Joined
·
11,416 Posts
Mine sounds like that too, to a lesser degree. I hear it only when my wife is pulling the car into the garage. It doesn't bother me (much) and the brakes work fine so I don't sweat it.

Would be interested to learn what it actually is though.

To me it doesn't sound like a brake friction noise, sounds like something is flexing.......
I agree with this.

Somms may be on to something there.
 

·
Registered
Joined
·
52 Posts
Discussion Starter #12
I've attempted e-brake trick mentioned above and it made no difference. I'll have to bring it in for repair, first out of warranty repair! :-D
 

·
Registered
Joined
·
52 Posts
Discussion Starter #13
For those wondering, tighten your axle nuts on the wheel making the noise. It can be off a turn just ever so slightly. Noise goes away. Had this verified on two volts making the noise.
 
1 - 13 of 13 Posts
Top