- This topic has 3 replies, 3 voices, and was last updated 8 years, 6 months ago by
.
-
Topic
-
I’ve recently installed (just a week before) a brand new very high quality rear brake pads and disc brakes for my 2006 Chevy uplander. However, it is making noise after I disengage the brakes and also it started damaging the inner and outside circle of the disc on drive and passenger side both as you can see in the attached pictures. Please advise what could be wrong.
-
Replies
-
I can’t see anything on the rotors other than rust. If you’re talking about the brown stuff that’s not damage that’s rust. Your brake noise is something else.
Brake discs are usually made of cast iron or steel, they’ll rust if you look at them the wrong way. After a humid day or rain it’s not unusual to have the brake rotor with a light coating of surface rust. This gets scraped off when you apply the brake a few times. You’ll usually hear and feel this (feels and sounds like grinding).
Your pads only scrape the rust off of the wear track on the rotor so you’ll see rust that didn’t get scraped off. Can’t really do anything about that. Brands will market all kinds of coatings that claim to slow or stop rust. Some luxury brands use rotors that come with a coating that’s sort of like paint that’s intended to be worn off, instead of the standard cosmoline you remove prior to installation with brake cleaner. For those rotors you’ll have unworn areas protected for a while but that doesn’t last forever either. Rotors rusting is a fact of life (unless they’re carbon fiber).
looks like surface rust to me on those rotors, perfectly normal
for brake noise i would take off the caliper and put some anti seize or syl-glide on the edges of the pads where it sits in the braket; also make sure the slides pins are lubed properly with silicone paste or syl-glide
- You must be logged in to reply to this topic.