Brakes Screeching
Discussion
Had both front pads and discs replaced about 2 months ago.
Rear have two drum brakes
Now every now and again when braking I get a screeching sound ?
the only thing I can think of is a small stone trapped behind the pads.
I have tried to use some brake cleaner, and use a jet hose to blow out any debris but it continues
Any ideas ?
Rear have two drum brakes
Now every now and again when braking I get a screeching sound ?
the only thing I can think of is a small stone trapped behind the pads.
I have tried to use some brake cleaner, and use a jet hose to blow out any debris but it continues
Any ideas ?
MakaveliX said:
Yaris 08
Not sure which brand they are, could be cheapo ones.
Cost about £200 to get them done.
I am booked in with the mechanic soon for something else, maybe just get them to look at it ?
Just confused as they're pretty much brand new, shouldn't be making any noises already
Hmmmm. I can't really help with a 'normal' car. Not sure which brand they are, could be cheapo ones.
Cost about £200 to get them done.
I am booked in with the mechanic soon for something else, maybe just get them to look at it ?
Just confused as they're pretty much brand new, shouldn't be making any noises already
When my brakes get too noisy in the Evo, a few very hard stops to get them nice and warm and a good 'workout' quietens them down. Not sure that would be the advice for a Yaris though.
sherman said:
Pads not alligned properly or the never got changed.
Are your drum brakes needing replaced too
Can you tell if its from the front, back, left, right?
Pads have definitely been changed as the old ones were quite thin, new ones are nice and thick.Are your drum brakes needing replaced too
Can you tell if its from the front, back, left, right?
I thought drum brakes in my car were used for the handbrake ?
Strange how it doesn't always make a screech, just now and then
Can't really tell which side of the car it comes from
If the sound is coming from the rear drums then as above a good clean out, roughen the friction material with something abrasive, take off any rust layer that forms on the drum friction area surrounding the smooth surface where the shoes bite, a miserly touch of lube at obvious pivot points etc and the chance to feed a little oil into the handbrake cable.
With disc brakes in particular the source of squealing can sometimes be found on close examination, often high frequeny vibration where the pads are vibrating against either the piston or where the pads backing plate edges come into contact with the caliper casting, where this vibration happens there will usually be a spotlessly clean bit of metal showing where that repeated vibration has effectively polished the metal.
Usually good annual or at the most every other year the brakes should be stripped cleaned and lubed properly when reassembling with the correct brake grease, making sure pistons and sliders are free moving.
Not many people do this, suggest to ping off any stainless steel sprung clips that grip the pads in the caliper, can get a build up of crud and corrosion underneath them over time, a good wire brushing of the clips and scrape any stubborn crud off the caliper with an old chisel, you'll find the clips go back in easier and pads slide in much easier too.
Brake cleaner is good for cleaning things when the brakes are dismantled and for cleaning the light grease from new discs, not great as a squirt at the brakes treatment (sadly seems to be the favourite method of brake non servicing at main dealers) because it dries out any existing lubricants that may still be doing their job, i'd prefer washing the brakes down with water in situ which is more likely to dissolve any salt residue causing issues.
With disc brakes in particular the source of squealing can sometimes be found on close examination, often high frequeny vibration where the pads are vibrating against either the piston or where the pads backing plate edges come into contact with the caliper casting, where this vibration happens there will usually be a spotlessly clean bit of metal showing where that repeated vibration has effectively polished the metal.
Usually good annual or at the most every other year the brakes should be stripped cleaned and lubed properly when reassembling with the correct brake grease, making sure pistons and sliders are free moving.
Not many people do this, suggest to ping off any stainless steel sprung clips that grip the pads in the caliper, can get a build up of crud and corrosion underneath them over time, a good wire brushing of the clips and scrape any stubborn crud off the caliper with an old chisel, you'll find the clips go back in easier and pads slide in much easier too.
Brake cleaner is good for cleaning things when the brakes are dismantled and for cleaning the light grease from new discs, not great as a squirt at the brakes treatment (sadly seems to be the favourite method of brake non servicing at main dealers) because it dries out any existing lubricants that may still be doing their job, i'd prefer washing the brakes down with water in situ which is more likely to dissolve any salt residue causing issues.
Edited by Smint on Thursday 10th March 07:31
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