Brake Problem

[woosey]

hi

have got a slight problem with my brakes. when braking from any speed jst before the pedal reaches the floor i get a clunk through the brake pedal and its driving me mad jst wondering if any1 has had the same problem or can shed some light on what it could be thanx

[woosey]

hi

have got a slight problem with my brakes. when braking from any speed jst before the pedal reaches the floor i get a clunk through the brake pedal and its driving me mad jst wondering if any1 has had the same problem or can shed some light on what it could be thanx

has no one got any ideas?

[ormi]

thats the pads moving about check and make sure you have all the shims on the pads..

[lexynik]

also your brake pedal shouldnt be anywhere near the floor so hopefully you mean "at the end of its travel" or something similar ?

[woosey]

yes lexynik did mean at the end ov travel gona check the shims 2 c if its that thanx for the info ormi

[griderjn]

sounds like your ABS is kicking in.

you need to check your diagnostics and see if you have an ABS or TRC fault.

if there is no fault indicated you should be all right.

you may just need to pull your speed sensors and clean them off a bit.

i got mine off using a 10mm socket on a ratchet

when i reinstalled my speed sensors i put some silicone grease in the cavity.

this does a couple of things:

1. silicone acts as a dielectric and magnifies(or something?) the sine wave that the speed rotor produces

2. the grease also protects the sensor from other dirt and grime

if your ABS is kicking in, and you do not have an indicated fault,

it is possible that your speed sensors are getting mix-matched signals.

someone also told me that if you have an aftermarket exhaust and the note is really low, this can affect the nearest speed sensor,

but i am not sure how true that is... meaning i could not confirm this in any way, but the dude seemed pretty sure of himself.

take that for what it is worth.

also check each sensor to see if it is still magnetic by seeing if it will stick to your ratchet.

if you have a lift and compressed air the job will take you a total of about 30-45 minutes.

without, you have to jack and remove each tire individually, not as quick, but still super easy.

also a good time to rotate your tires if you have not recently,

and check your brake pads and rotors for wear and tear.

hope this helps.

[lexushell]

i have same problem, these lexus are a load of junk! i would rather have a ford fiesta! had pads disc shims changed lower ball joints stabiliser bars.....still the same,

i would not have anouther is200 if you said i had won one in a raffle..................heap of junk.............nothing but problem after problem.......

[E910]

i have same problem, these lexus are a load of junk! i would rather have a ford fiesta! had pads disc shims changed lower ball joints stabiliser bars.....still the same,

i would not have anouther is200 if you said i had won one in a raffle..................heap of junk.............nothing but problem after problem.......

If it's not the ball joints making the noise then there's a good chance its the bush in the trailing arm 48068E & 48069A. You can only get the complete arm genuine but you can get just the bush from TRD & aftermarket suppliers.

I think you'll find most modern cars of this size are hard on suspension bushes, not just Lexus. Also I'd say your mechanics diagnostic skills are that great but by process of elimination you'll eventually find the fault.