Brakes Squeaking - Best Course Of Action ?
Discussion
Got an '08 Yaris MK2 which has recently developed an annoying squeak when at low speeds whilst braking to a stop.
I did use a load of brake cleaner which has definitely made them less dirty and much less squeaky but the noise persists somewhat.
The pads on both sides look pretty thick ( just under 1CM in thickness ) so I'm confused as to what's causing the squeak. The brakes are sharp and work very well however.
Here's some photos, what do you guys suggest ?
I did use a load of brake cleaner which has definitely made them less dirty and much less squeaky but the noise persists somewhat.
The pads on both sides look pretty thick ( just under 1CM in thickness ) so I'm confused as to what's causing the squeak. The brakes are sharp and work very well however.
Here's some photos, what do you guys suggest ?
mickyh7 said:
Brake Paste!
What's that then?
Another name for brake lube, brake grease, anti-squeal....What's that then?
https://lmgtfy.app/?q=brake+paste
I assume he means copper grease?
My guess is that some anti squeal shims have been missed off the last figment.
Sometimes a four or five good hard stops (obviously when safe to do so) can clear the pads and disks.
Otherwise, remove them lightly score the pad surface with some emery cloth in a well ventilated area and put some copper grease on the backs.
My guess is that some anti squeal shims have been missed off the last figment.
Sometimes a four or five good hard stops (obviously when safe to do so) can clear the pads and disks.
Otherwise, remove them lightly score the pad surface with some emery cloth in a well ventilated area and put some copper grease on the backs.
Unlikely you need new brake materials, just a good clean and a grease of the sliders will usually do it. Worst case I'd take a set of new brake pads which have shims on the back as they always help. Copper grease isn't needed if the calipers are clean and not binding up with corrosion.
Krikkit said:
Unlikely you need new brake materials, just a good clean and a grease of the sliders will usually do it. Worst case I'd take a set of new brake pads which have shims on the back as they always help. Copper grease isn't needed if the calipers are clean and not binding up with corrosion.
Copper grease isn't needed full stop but some lube is needed on even the best condition calipersYou don't need new parts.
Pads need to come out, all parts need cleaning, any anti rattle shims need to be pinged off and cleaned up as well as the caliper where they sit, then a gentle lubing with the correct brake grease on the sliders and also on the back of the pads and a tiny wipe on the edges of the back plates will do the trick.
Purely out of interest if you removed the pads you would probably see the exact spot the squeal is coming from, an edge and/or the back of the back plate of one of the pads will be shiny, that's where the pad is vibrating gently at a high frequency which is the squeal you can hear.
I know that many garages squirt brake cleaner about in the general direction of the calipers and call that £brake £servicing, it isn't, if anything the stuff dries any lube that a real mechanic used last time the brakes were properly serviced.
Pads need to come out, all parts need cleaning, any anti rattle shims need to be pinged off and cleaned up as well as the caliper where they sit, then a gentle lubing with the correct brake grease on the sliders and also on the back of the pads and a tiny wipe on the edges of the back plates will do the trick.
Purely out of interest if you removed the pads you would probably see the exact spot the squeal is coming from, an edge and/or the back of the back plate of one of the pads will be shiny, that's where the pad is vibrating gently at a high frequency which is the squeal you can hear.
I know that many garages squirt brake cleaner about in the general direction of the calipers and call that £brake £servicing, it isn't, if anything the stuff dries any lube that a real mechanic used last time the brakes were properly serviced.
Smint said:
You don't need new parts.
I know that many garages squirt brake cleaner about in the general direction of the calipers and call that £brake £servicing, it isn't, if anything the stuff dries any lube that a real mechanic used last time the brakes were properly serviced.
Yeah that sounds right, I did think to myself that brake cleaner isn't a great idea as it could dry out any lubricant inside the brakes.I know that many garages squirt brake cleaner about in the general direction of the calipers and call that £brake £servicing, it isn't, if anything the stuff dries any lube that a real mechanic used last time the brakes were properly serviced.
I got the pads and discs changed for peace of mind, bedded them in OK by doing a few stops from 50mph to 20mph etc
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