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rt/rear caliper not engaging?

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Old Aug 4, 2009 | 06:49 PM
  #1  
lostinfords's Avatar
lostinfords
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Question rt/rear caliper not engaging?

Anyone else had any issues/problems w/ the rear calipers not compressing all the way??
My '05 seems to not be compessing fully, ...no air in system, does not hang/drag, releases fully but it is only compressing/closing enough that the brake pad is only touching part of the rotor, at first I saw that there was a thin coat of rust on the outside of the rotor, as seen through the rim and only 50% of it was shiny, indicating that the brake pad is only making contact w/ 1/2 of it, I changed the pads and rotor, inspected the caliper, it locks the wheel, not allowing it to spin when turning while on a lift, but I see the thin rust forming on the outside of the rt/rear rotor...possible internal bypass?

What say the masters and gurus??

thanks
 
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Old Aug 4, 2009 | 11:41 PM
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I wonder if that unit has a residual valve back there... That is weird though.
 
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Old Aug 5, 2009 | 12:35 AM
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a residual valve back there... ???
what is that?
 
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Old Aug 6, 2009 | 07:23 PM
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make sure your caliper pins and slide are lubed up good and are rust free..
 
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Old Aug 6, 2009 | 07:23 PM
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From: sudbury
theres no valve.
 
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Old Aug 6, 2009 | 09:38 PM
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did that too, what are the chances the caliper is just internally bypassing, any one ever heard of this w/ the factory ford calipers? I am considering pricing out a caliper and installing to to see if that rectifies the problem, just wanted to see if there were others w/ similiar issues, funny thing is that there are no stopping concerns or problems, just the visible rust on the outside of the rotor, i will try to post some pics of what I am describing,

thanks
 
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Old Aug 10, 2009 | 03:50 PM
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kshaw
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If you have already lubed the pins and the groves where the brake pads sit, and you used a wire brush to make sure that there was no rust (as mudguy33 suggested) then it is time to replace the caliper with a rebuilt one. Shouldn't cost over $100 if you can do it yourself. Be sure to bleed the brakes after you install the new caliper
 
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