Rattling sound coming from front wheels

[emil_eyedoc]

Rattling sound on front wheels of a 2006 Sienna LE

[emil_eyedoc]

My 2006 Sienna LE has rattling sounds on both front wheels when hitting small bumps but suprisingly doesnt make that rattling sound when pressing on the brakes lightly when thw wheels hits small bumps..a mechanic said my front struts are fine..just changes my front brake pads and rotor but still has that rattling sound..i need help guys! thanks!

[ngomhao]

Rattling sound is probably due to brake pads' missing clips, pins's lacking brake grease.
There is a TBS on 2010 Prius with a similar metallic sound problem (when vehicle is over small bumps).

[NoHeat]

Originally Posted by ngomhao

Rattling sound is probably due to brake pads' missing clips

No.

The thin little clips on the front brake pads are not anti-rattle clips. Their purpose is not to suppress noise, but the opposite -- as a warning they make a noise when the brake pads are too thin.

I know this because I misplaced a clip on one wheel when I changed front brake pads. I then went to the parts department of the dealer to buy another. The parts counter guy told me not to bother, it's just there to scrape on the rotor and make noise as an indicator of thin brake pads.

I've been driving about 30k miles since then without the clip and without any noise.

[NoHeat]

Originally Posted by emil_eyedoc

a mechanic said my front struts are fine

How many miles?

Potholes where you live?

Do you drive on gravel roads?

Lots of stop and go city driving, or all expressway cruising?

[emil_eyedoc]

it has 66k miles, some potholes near my place, no gravel roads around, mixed freeway and city driving..anyways, went to a referred mechanic today,who used to be with a toyota dealership before..my front brake pads has a big space in between the shims/clips..usual scenario for after market pads etc..we tried placing silicon between spaces but still rattling exists..he said brake upgrade kit is needed en will order original parts from dealership..a lot of sienna has this problem he said..this monday will do it..keep u posted guys! thanks!

[oblack]

i had a rattling sound when i accelerate

[XKWISIT1]

Did the tech check the swaybarlinks? They will rattle over bumps when they wear. The lower control arm bushings are also know to separate and cause noises.