New Brakes Scraping Sound

[duff]

Just a heads up !

I Just replaced EVERYTHING in front and rear except rear cyls. Even flushed the system.

Road test was good. But; The more it was driven, a scraping sound seemed to increase in the front. Took a close look and listen at everything - didn't see anything wrong. Scraping seemed loudest at the end of braking, and continued a bit after braking. After about 100 miles it quieted down.

I was surprised how much noise was transferred by the new parts prior to break in. It sounded very scary. I did think that the new rotors appeared to have a rougher machined surface then when you would have them cut but that is all I can atribute to it.

I was not impressed with Doorman (Chinese) calipers. The hose seals were too big. One was spewing fluid all over as I was bleeding the other side. New seals from Ford were a LOT smaller. I questioned the parts guy and he said they are all the same for every year. They solved the problem. It also appeared that the bleed plugs weeped fluid for a few days after the job.

Duff

 

[WizardOfOdds]

I too have new front rotors and pads and calipers... not all the time, Id say about 10% of the time I'll get the high pitch squeek when braking... Not too sure what the problem is, I heard sometimes they just squeek lol, nothing wrong with them tho, I also heard sometimes its the type of materials the pads are made of. Im not too sure what type of pads they are.

 

[quicklook2]

a good thing to do with new rotors is to have them trued up before you use them.

also they need to be cleaned to remove the finish they put on them so they do not rust.

generally the cheaper the parts the more grief you get from them.

 

[Tony H]

The calipers fit withing your Rim OK? See if the inside of you rim is chewed.