View Full Version : tc brakes sound crazy under max brake load?


cq107
01-27-2005, 05:45 AM
Anyone have a tC and tried mashing the brakes ? I get a very weird noise - a "clunk" of some sort... sounds like its coming from the vacinty of the engine, but its not like a mount is bad because i can feel it in the brake pedal when this "clunk" happens...
Anyone have any clues?
The car stops normally, and under light to almost max load there is no "clunk".
:nails:

hotbox05
01-27-2005, 06:39 AM
that is abs workin for ya.

LeeD
01-27-2005, 09:10 AM
A few questions if you don't mind to help narrow it down. I've had a similar sound in another car. I only seemed to hear in during an autox during very hard braking. I know what ABS sounds like, and this wasn't ABS.

In case yours isn't,
Is it a single clunk, repeated clunck, only under very very hard braking, or any braking?

And does it happen immdediately when you touch the brakes, or a milisec or sec after?

ScionJohn
01-27-2005, 04:32 PM
Sounds like "CHITTI-CHITTI- BANG-BANG" or like CHUGA-CHUGA-CLUNK-CLUNK-GUUG-GUUG!" THAT'S NORMAL!

RussianTC
01-27-2005, 07:19 PM
That does sound like the ABS kicking in... Try doing this while you're going faster, and see if the clunking lasts longer...

cq107
01-27-2005, 07:58 PM
weird... I didn't know abs sounded like this...
yea it only happens on max break load, and will keep making that sound if I am still breaking hard...
Thanks

LeeD
01-27-2005, 08:54 PM
It's the ABS. I've seen loose suspension or loose brake components also make noise when under braking, but usually that's just a single clunck, sometimes under little braking or hard braking depending on how loose the component is.. That definately sounds like the ABS doing what it's supposed too...

AuburnScion
01-27-2005, 09:48 PM
:silly:

Hudnut
01-27-2005, 10:25 PM
At first thought I was goin to razz you, tell you it's you ABS, and say something about your age or something. but I won't. It could be a motor/trans mount that's broken allready.

lriicelboy
01-27-2005, 11:17 PM
no.. definantly ABS.. cause it happens to me too.. esp on snowy roads.

brian
01-27-2005, 11:32 PM
yea, i thought this would be common knowledge but i guess not. abs has been kicking in a good amount in this snow we've had up here.

nixr6
01-27-2005, 11:59 PM
yeah dude when i step on the gas pedal my engine gets louder...wtf is up with that?



jk...sounds like abs...it kicks in to prevent your wheels from skidding, so it will kick in under hard braking...and alot easier in the snow or rain