v8sprint

Everytime I am pressing the brake pedal, I hear a distinct clicking sound coming from passenger front Brake Caliper Area.
Any suggestions on how to diagnose and fix this problem?

I have applied brake grease (green) to the pad shim.
I have replaced the spring sets on each front caliper.

Lynzoid

same thing started on my driver front. redid all springs and grease to no avail. is your lower rearward toe arm 'movable' by hand (i can flex mine by hand?!)? also clunks when driving at low speed over rough road with brakes released (gone with brakes on).
had this on my 430 but dont remember the solution

v8sprint

I do not follow your description "rearward toe arm". I have the main lower control arm, the front lower control arm.
Then the other connection points are the sway bar which is "rearward".
Then the two upper control arms.

Lynzoid

https://www.clublexus.com/forums/att...ent-pic-22.jpg
this upper on the pic one - on your video it flexes a lot

Lynzoid

Ok back from the mech. Its that rear arm that is dead and making tgat clunk on braking etc. Replacing.

Doublebase

Crazy thought...seeing how it is only when you press the brake and you've replaced the springs and greased the pads, try isolating the caliper pins (the ones that physically go through the pads). Take the caliper off, move the pads on the pins and place a little tape where the pins ride on the pads. Reinstall. And that rubbing noise sounds like the backing plate to me.

These are fixed caliper designed systems, unfortunately the caliper pins are in direct contact with the pads. It won't cost you a thing to give it a try and if that is the problem, you can buy new pins. On floating design calipers the pads are more secured in the caliper, with fixed calipers there is a lot more movement and metal on metal contact.

Either that or you'll be on a wild goose chase with every suspension bushing known to man (and that may be it too).

Lynzoid

no. not a wild goose chase. look at his other video - his toe arms are torn.

v8sprint

The rubbing was the dust shield. The lower forward most bolt head was snapped off by previous owner or non-qualified mechanic, allowing the dust shield to move forward and was rubbing on the rotor. That is fixed now.

The clunking was resolved only by tightening the lug nuts snugger than the spec at 103 ft/lb.
I have ordered all new rotors and pads.

Lynzoid: my toe arms are not torn. Besides I have the new bushings if they were. In the other video I distinctly note that I was going to replace the bushing in the toe arm, so I loosened the bolt/nut. While forgetting to retighten and torque back; after deciding not to replace because they are not damaged afterall.

Lynzoid

Ok, good fix.