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I have a 2003 ford f-350 dually.I am having big brakes problems that i cant seem to find the problems to.I installed new brake pads and had the rotors refinished,brakes started to pulsate about a week later.Took the rotor off again,had them refinished again,this time with in 2 days they were pulsating again.OK,now i gave up and went out to buy new rotors,thinking that the old rotors got to hot and they were weakend.So i installed the new rotors on saturday and went to work on monday.Well on my way home monday night the new rotors started to pulsate again,with only 160 miles on them.I took the wheel off to look at the rotors they were blue and purple,now i know they are getting hot,but the problem is that i cant figure out what the problem is.I have checked my spindel bearings,there good.I checked the brake oil,no air and no water in the lines.
Now i am at a lose,cause i have no clue what else it could be.
If any one had this problem and knows how to solve it please help me.The next step would be to replace the calipers,but i wanted to know what u guys thought first.
Thanks
i will bet the problem is the pads.you have to make sure that you use either ceramic,or raybestos,carbon metalic pads.anything else are too soft,which cause too much heat which makes for warped rotors.the other possibility is the pads may not be fitting in the carriers properly,and need to be tweaked with a grinder,so they release.