Brake Noise Is it normal?

[He Man]

when I jam the brakes hard, they make a loud deep noise like a semi is slamming on the breaks...or a huge whale is about to get laid.

i always thought this was normal noise because it only happens if it get onto the brakes really hard. THe noise is so deep it vibrates through my handles, i wouldnt call it pulsing though and it isnt a high pitch squeal.

Normal?

sounds a lot like this, just a bit deeper and only when i get on it hard

Brake Noise Issue 2007 Lexus ES350 Ultra Luxury [High Definition]

[stopintime]

................

Normal?

No, it's not normal. Maybe clean and scuff discs + sand down pads?

[He Man]

pads are almost on their way out. I figured if the pads were the reason the noise should be a lot higher pitch.

Ill resurface my rotors when i install my new pads and see if it goes away i guess.

[stopintime]

Whenever my cars have sounded like that Lexus, I've reversed while applying the brakes. It has always fixed the sound - guess it's accumulated brake dust/dirt.

[darkduc7]

+1 on new pads. the pad surface if worn will definitly make some funky sounds...harmonics if you will.

[Desert Dust]

My front brakes on my 07 S2R 1K tend to make a squealing sound at times, but I don't think it's the pads because the bike only has 4600 miles on it. Think I'll try the reverse thing backing out of my driveway. 

Don't know about the rear brakes, I've never used them. 

[Scissors]

If it's too annoying, you can pull the pads out and clean everything.  It's also a good idea to lubricate the contact points with an appropriate metallic brake lubricant before reinstallation.

[scott_araujo]

Yes, pretty easy to remove the pads, scuff them up to break any glaze, chamfer the edges, and clean the discs with some brake cleaner.  Some brake lube on the back of the pads is also a good idea.  For the long term plan on replacing the pads.

Scott

[alexisonfire]

my brakes are making a funky sound not quite as bad as this, but enough to annoy me.  Replaced the pads, still does it.  I'm betting the rotors need a good cleaning or resurfacing.

[greenmonster]

I`d check if the pads are moving freely so their ends do not bind to the caliper housing.
Copper paste on outside of pads reduce squeeky brakes also.

[scott_araujo]

I`d check if the pads are moving freely so their ends do not bind to the caliper housing.
Copper paste on outside of pads reduce squeeky brakes also.

+1.  Also, sometimes chamferring the edges of the pads helps a lot if they're not already.  An easy clean for the discs is a green Scotchbrite and brake cleaner.  Desmo Times (I think) sells a nifty little hone that fits in a drill and really cleans the surface.

My stock pads made a horrible noise and vibration when I got the bike.  Deglazed the pads, cleaned the rotors, a little brake grease: all better.  I have to say when I swapped my stock rears for Ferodo Platinums I couldn't believe the difference.  I'm looking forward to swapping the fronts this spring.

Scott