Sound While Breaking

[NightRock]

Guys don't know what is the caused of this, I just changed my break pad recently, after a month I always hearing a sound in front driver side while stopping. (I learned my lesson well again dont fix it if it's not broken) I shoudn't changed the pad, the mech. said it is still good but I changed it anyway since I feel that my break pedal is getting deeper.

I tried to spray WD40 but after few hours of driving noise is coming back. Is there any particular spray for the break system? what confused me is only on the left side if it's fake breakpad, since pad are coming in set. And I got a Motorcraft break pad. I haven't inspected it so far since I didn't got spare time

 

[swshawaii]

NEVER spray ANYTHING on the brake pad surface or rotors. If you did there is a high probability you ruined the pads.
Stainless brake hardware and caliper slide pins should be properly lubed with high temperature silicone brake grease.

 

[NightRock]

NEVER spray ANYTHING on the brake pad surface or rotors. If you did there is a high probability you ruined the pads.
Stainless brake hardware and caliper slide pins should be properly lubed with high temperature silicone brake grease.

Thanks for the reminder, is there anything I can do to mitigate that scraping sound while breaking

 

[07LTDDSM]

scraping sound??? I'd take everything apart and ensure you assembled it correctly.